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Contents Introduction to Datastage ............................................................................................................................. 3 History of Datastage ..................................................................................................................................... 3 Architecture of Datastage ............................................................................................................................. 3 Components of Datastage ............................................................................................................................ 3 How to create Project: .................................................................................................................................. 3 Steps to Create Sample Job: ......................................................................................................................... 5 How to Open DS Designer......................................................................................................................... 6 What is Job? .............................................................................................................................................. 6 Types of Jobs? ........................................................................................................................................... 7 Creating a Datastage Job: ......................................................................................................................... 7 How to Create ODBC Connection. ............................................................................................................ 7 Business Requirement: ......................................................................................................................... 9 Add Different Stages.(Add SQL Enterpirse, Oracle enterprise) .......................................................... 10 Configure the Stages(Source Stage and Target Stage) ....................................................................... 10 Compile the Job .................................................................................................................................. 12 Populating Surrogate Key in Order Method Dimension Table: .............................................................. 12 Surrogate key File Creation ..................................................................................................................... 15 R(Runtime Column Propagation) ........................................................................................................ 16 Employee Dimension Population ............................................................................................................ 18 Parameters:................................................................................................................................................. 21 Global Parametres: ................................................................................................................................. 22 ORDER METHOD DIM POPULATION Using Insert and Update. .................................................................. 25 Change Capture Stage:................................................................................................................................ 25 Datastage Activity. ............................................................................................................... 26 Deleting a Corrupted Project .................................................................................................................. 34 Restarting RTI server ............................................................................................................................... 34 Adding Oracle DSN Entries ...................................................................................................................... 35 Configuring .odbc.ini file to add DSN for DB2 connectivity: ................................................................... 36 Configuring uvconfig file for avoiding Timeout: ..................................................................................... 40
Steps for Creating a New Datastage Project ........................................................................................... 43 Deadlock Daemon Locks using UNIVERSE Commands ........................................................................... 45 Deleting a Project using Datastage .................................................................................. 47 LDAP Configuration ................................................................................................................................. 49 Package Installation guidelines ............................................................................................................... 52 Releasing Resource Locks using UNIVERSE Commands .......................................................................... 59 Renaming Datastage Project Using Universe.......................................................................................... 61 Restart of DataStage 7.5.1a Services ...................................................................................................... 62 Restart of DataStage 8.1 Services ........................................................................................................... 66 Restarting RTI Agent ............................................................................................................................... 75 Overview of Datastage Stages: ................................................................................................................... 76 Aggregator Stage :................................................................................................................................... 76 Change Apply Stage ................................................................................................................................ 82 Takes the change data set, that contains the changes in the before and after data sets, from the Change Capture stage and applies the encoded change operations to a before data set to compute an after data set. .......................................................................................................................................... 82 Filter Stage : ............................................................................................................................................ 84 Funnel Stage :.......................................................................................................................................... 88 Stage : .............................................................................................................................................. 91 Lookup Stage : ......................................................................................................................................... 95 Merge Stage : Stage combines a sorted master data set with one or more update data sets. The columns from the records in the master and update data sets are merged so that the output record contains all the columns from the master record plus any additional columns from each update record. 96 Modify Stage ........................................................................................................................................... 98 Pivot Stage : .......................................................................................................................................... 103 Remove Duplicates Stage...................................................................................................................... 104 Surrogate Key Generator Stage ............................................................................................................ 105 Switch Stage .......................................................................................................................................... 106 Compress Stage :................................................................................................................................... 109 Expand Stage ......................................................................................................................................... 110
Introduction to Datastage History of Datastage Architecture of Datastage Components of Datastage
How to create Project: 1) to Datastage
2)
3) 4) Go to Project Tab and Click on Add button
5) 6) Provide the name of the project you want to create.
7)
Click on Project Properties provide the Access to s.
Steps to Create Sample Job: 1) Understand the Business Requirement 2) Open Datastage designer 3) Create Job(Parallel)/Server Job 4) Add stages 5) Configure each stage a. Datasource Info b. Table Names, Column names c. Mapping 6) Save, Compile and Run
How to Open DS Designer
Enter Datastage Name and and select the project you want to work and Click on OK
What is Job? •
Executable DataStage program
•
Created in DataStage Designer
•
Built using a graphical interface
•
Compiles into Orchestrate shell language (OSH)
Types of Jobs? Creating a Datastage Job:
How to Create ODBC Connection.
Business Requirement:
Gosales(MSSQL) Order Method OrderMethodCD
Gosalesdw(Oracle) ORDER_METHOD_DIM Order Nm
ORDER_METHOD_ID
ORDER_METHOD_DESC
Add Different Stages.(Add SQL Enterpirse, Oracle enterprise)
Configure the Stages(Source Stage and Target Stage)
Compile the Job
Populating Surrogate Key in Order Method Dimension Table: Wants to load the DIM_ORDER_METHOD from Order_Method table hosted on MS SQL Server database. In this case, want to generate Surrogate Key. Mapping Source Table(Order_Method) -ORDER_METHOD_CODE ORDER_METHOD_DESC
Target Table(DIM_ORDER_METHOD) ORDER_METHOD_KEY(surrogate_key) ORDER_METHOD_CODE ORDER_METHOD_DESC
Two ways to populating Surrogate key(Flat File or DB Sequence) 1) By using Surrogate Key Stage in the Job itself
2) By Using Transformer Stage in the Job.
Steps to design the Job 1) Add Stages(SQL enterprise, Trnsformer, Oracle enterprise) 2) Configure each and every stage
3)
4)
5)
6)
7)
8)
Surrogate key File Creation 1) Create new job to generate Surrogate file 2) Add Surrogate Key Generator Stage
3) Configure, compile, Run to generate the file
4)
R(Runtime Column Propagation) R can be used to populate columns available in the source table without defining at the stages. We can enable R functionality at Datastage
To use R in the jobs we need enable R flag at Source Stage and Transformer Stage.
Employee Dimension Population Business Requirement: Want to populate the Employee Dimension table from source Employee table available in Gosales
EMP
Trsnfr
Emp_dim
1) Add 3 Stages(SQL Enterprise, Oracle enterprise, Transformer)
Emp: R2: Wants to Populate Gender Name in the Target table based on Gender Code
BR: EMP_DIM: R3 Want to store Year of Hire and Month of Hire based on Hire Date available in the source.
EMP_DIM: R4 Wants to populate Termination Reason in the Employee Dim. Add Lookup Stage and Database Stage to read the records from Termination Lookup Table.
EMP_DIM: R5: Wants to populate Manger Code1, Manager_name1, Manger Code2, Manger Code3, Manger Code4, Manger Code5 in to Employee DIM table.
Data Set er(emp_ cd=emp_cd
EMp_Hist
er(mgr1_cd= emp_cd
EMP_HIST
Parameters: Parameters can be divided into 2 types. 1) Global Parameters(Project Level). 2) Local Parameters(Job Level). Global Parameters can be created in a datastage Local Parameters can be created in Datastage designer.
Global Parametres:
If you want to use these global parameters in the Job. We need include the parameters in the Job Parameters.
If we want logically group parameters, First need to create Parameter SET.
ORDER METHOD DIM POPULATION Using Insert and Update.
Change Capture Stage:
How to Implement SCD Type 2 using Change Capture: Source table: Order Method Order Method Code 1 2 3 4
Order method NM Fax Web Email Telephone
Target table should be KEY
CD 601 602 603 604 605
1 2 3 3 4
NM Fax Web E-Mail Email Telephone
CURR_INDICATOR Y Y N Y Y
Add different stages as mentioned below:
Configure Source DB stage to connect SQL Serer DB
Configure Lkp table to connect Order Method Dim table on Target DB:
Configure Change Capture Stage as mentioned Below:
Configure Transformer Stage as mentioned below:
Configure Target DB as mentioned Below to connect Target Table(Order Method Dim) for Insert
Configure Target DB to connect target table(Order Method Dim) for Update purpose.
SCD population using SCD Stage:
Configure the SCD stage as follows
Datastage Activity. Deleting a Corrupted Project Steps to remove the project manually through UV:
1) to UNIX using ds.
2) Make sure you are in the DSEngine folder
3) Source the dsenv and to the UV $ . ./dsenv $ bin/uv
4) Execute "LIST UV. <project name>" and if you see the project name type: "DELETE UV. project name"
5) "LIST UV_SCHEMA” to see the List of project names, then if you see the Project name type: ".SQL SCHEMA <project_name> FIX"
6) Check that you cannot see the project by typing "LIST UV_SCHEMA"
7) If you still see the project then enter "Drop SCHEMA project_name cascade;"
Restarting RTI server 1. Logon as Super ds -
2. Change the directory to the RTIServer bin
$ cd /opt/dsSoftware/Ascential/RTIServer/bin/ 3. Start or stop the server using nohup command
For starting $ nohup ./RTIServer.sh start & For stopping $ nohup ./RTIServer.sh stop &
4. Check whether the RTI server has been restarted. Execute the below command $ ps -ef| grep RTI Find the sample output for the above command ds 4977 4946 0 16:26:09 pts/7 0:00 grep RTI ds 20018 1 0 Feb 27 ? 1061:21 /opt/dsSoftware/Ascential/RTIServer/apps/jre/bin/java -Xmx256m -server -Dprogra Or open the IE browser and enter the url in the address bar http://<Server Name >:8080/rti/ Eg : http://stvsauxpac01.corpnet2.com:8080/rti/ http://kopsapace02.corpnet2.com:8080/rti/
Adding Oracle DSN Entries 1. Logon to Datastage Server as ds 2. Change directory to DSEngine folder 3. Start or stop the server using nohup command 4. Edit .odbc.ini file to add an entry for DSN. Pls find a sample Oracle DSN entries [ukdev495] Driver=/opt/dsSoftware/Ascential/DataStage/branded_odbc/lib/VMor820.so Description=DataDirect Oracle ServerName=ukdev495 CatalogOptions=0 ProcedureRetResults=0 EnableDescribeParam=0
EnableStaticCursorsForLongData=0 ApplicationUsingThreads=1
5. Save the file Note: DataStage does not need to be stopped or restarted after this change
Configuring .odbc.ini file to add DSN for DB2 connectivity: The .odbc.ini file in the Datastage home directory (/opt/dsSoftware/Ascential/DataStage/DSEngine) should have an entry for every database to which the wants to connect using ODBC connectivity.
This document is about adding an entry in .odbc.ini file to allow for DB2 connectivity. The Sample Entry for DB2 connectivity is given below
[P M AR_JD E_ 44 6 _OD BC] D r iver =/o pt/ dsS oftwar e/ Ascential/D ataS tage/br anded_od bc/lib/ VM db2 2 0 .so D escr iption=D ataD ir ect 5 .0 0 D B2 Wir e P r otocol D r iver AddS tr ingToCr eateTa ble= Alter nateID = Collectio n=JD FD ATA D ynamicS ections=1 0 0 Gr antAuthid=P UBL IC Gr antExecute=1 IpAddr ess=1 6 6 .7 1 .15 5.2 9 IsolationL evel=CURS O R_S TABIL ITY L ocation=NETD ATA
L ogonID =S CD WUS ER P asswor d= P ackage=P M ARP CK P ackageOwner =S CD WUS ER TP or t=4 46 WithHold=1
The entry within [ ] is the name of the entry (PMAR_JDE_446_ODBC in this case)
The driver is the location of ODBC driver for DB2. An ODBC driver is needed to allow connectivity from Datastage to any Database.
AddStringToCreateTable is the string that should be added while issuing create table commands
Collection is the name of the Library that has tables to which the has access. (I believe that no matter which library you are using here you would be able to access the ones your DB has privileges).
IpAddress is the IP Address of the Database Server
Location is the name of the Relational Database (RDB) on the AS/400 server
LogonID is the Logon with which the logs on to RDB on AS/400
is the for the
Package is any name upto 7 characters to uniquely identify this connectivity
PackageOwner is typically the same
TPort is the port number on which DB2 is listening.
Finding out the Location:
Run the "WRKRDBDIRE" command on AS/400 and use the entry against the one that is typed *LOCAL.
Finding out the Port Number:
To determine the correct port number, execute 'NETSTAT' from an AS/400 command line. Choose option 3 to display a list of active ports on the AS/400. Find the entry for DRDA and press F-14 to toggle the display the port number.
DRDA is the communicating protocol for communicating with DB2.
For Collection we have used JDFDATA, which is a Vanilla Library.
Once the changes are made to .ODBC.INI file, the next step is to Bind the package. This is essential before checking the DSN Connectivity.
The bind command can be executed from branded_odbc/lib directory as
$. /bind20 PMAR_JDE_8471_ODBC
where PMAR_JDE_8471_ODBC is the name of the DSN.
Bindings may not happen successfully sometimes and most probable reasons are
1. Wrong Port: This will cause the Bind operation to hang forever. Press ctrl c to break from the operation and re-edit the entries in .odbc.ini by specifying the correct port umber using the command listed above
2. Incorrect Id/: Attempting to bind the package with incorrect credentials or credentials having insufficient privileges will cause the Bind operation to fail with the error 7680. Discuss with DB2 or AS/400 to get the correct credentials and/or privileges.
3. Incorrect Port / IP Address: Trying to bind a package with incorrect IP/Port will cause the binding to fail with the error 7505. Follow the commands listed above to identify the Port number and discuss with DB2 or AS/400 to get the correct IP Address.
4. Incorrect Location/Collection: Package bind will fail with the error 1242 if the Location or collection mentioned in the .odbc.ini file is incorrect. Use the procedure mentioned above to find out the correct Location and DB2 or AS/400 to get the Collection name to which you have access.
5. Network Error: Package creation and binding may sometimes fail with the error 7500 which would indicate a network failure.
The cause for other error messages during the package binding can be found by looking at the file ivdb220.po in the directory /branded_odbc/locale/en_US/LC_MESSAGES
Once the Bind is successful, the next step is to test the ODBC connectivity. This can be done as 1. If you haven’t previously done so, cd to $DSHOME and set up the DataStage environment by running dsenv: . ./dsenv 2.
Invoke the DataStage engine shell:
./bin/dssh The DSEngine shell starts. 3. Log to the project: LOGTO PMARDev Where project_name is case sensitive. 4. Get a list of available DSNs by typing: DS_CONNECT 5. Test the required connection by typing: DS_CONNECT PMAR_JDE_8471_ODBC 6. Once the test is successful, exit out by pressing .Q
Once the DSN connectivity is tested from the Unix box, the next step is to import tables from Datastage using ODBC and start using the same in Datastage Jobs.
Configuring uvconfig file for avoiding Timeout: 1. Logon using ds.
2. Check that there are no client connections or phantom jobs running in the background
This can be checked by issuing the commands
$ ps –efd | grep phantom
$ ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
Request the client (szs42740 for example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients (szs42740 for example) are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
$ super mdc-kill-phantom
$ super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
3. Change the directory to
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
4. Source the dsenv file.
$ ../dsenv
5. Stop the service
$ . /uv - -stop.
6. Change the directory
$ /opt/dsSoftware/Ascential/DataStage/DSEngine
7. Take a back up of uvconfig file.
8. Change the below mentioned values in the uvconfig file using Vi editor
RLTABSZ 100 GLTABSZ 100 MAXRLOCK 99
9. Save the uvconfig file.
10. Make the changes to take effect $ ./uv – –regen
11. Restart the DS server
$ ./uv – –start
12. Change the directory to DsEngine .To Confirm the changes have taken effect issue the command below
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/ $ bin/uvregen -t
Note: $ is the Unix prompt
Steps for Creating a New Datastage Project Step 1: to Datastage using ds Step 2: After successful click on the “Projects” Tab and then click “Add”. Step 3: “Add Project” window will be displayed.
Step 4: Enter the name of the Project. Step 5: Enter the Project Path (/datastage/Projects/)
Step 6: Click “OK” Step 7: Select the created project and click “Properties” Step 8: Check the options in the Project Properties as displayed in the image below
Steps for Creating Access permissions for a Datstage Project
Step 1: to Datastage using ds Step 2: Change the directory to /datastage/Projects/
Step 3: Identify the .developer. file Step 4: Open the .developer. file and enter only the primary group(Eg:dstage) or secondary group (Eg : ds_scdw) for giving access permission. Step 5: Save the .developer. file .
s who are not part of the primary group(Eg:dstage) or secondary group (Eg : ds_scdw) entered in the .developer. file cannot access the project.
Deadlock Daemon Locks using UNIVERSE Commands Step 1. Logon using ds.
Step 2. Change the directory to
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
Step 3. Source the dsenv file.
$ ../dsenv
Step 4.Issue the below command
$ ./uv
and the following message will be displayed
DataStage Command Language 7.0 Copyright (c) 1997 - 2003 Ascential Software Corporation. All Rights Reserved DSEngine logged on: Fri May 12 13:24:49 2006
Step 5. Issue the below command
> LOGTO UV > DEADLOCK.MENU
You will get the following messages DataStage Deadlock Manager istration
1. Examine the deadlock daemon logfile
2. Start the Deadlock daemon
3. Halt the Deadlock daemon
4. Purge the logfile
5. Check for deadlock
6. Select victim for deadlock resolution
Step 6: choose the options above
Step 7: Issue the following command to quit the universe
>Q
Find the explanation for the messages in the Dsdlock.log
1. DeadLock Daemon started in Query Mode by pid .
Someone executed dsdlockd -p command
2. DeadLock Daemon started in Dead Process Cleanup Mode.
The deadlock daemon on waking found defunct processes and initiated a cleanup
3. DeadLock Daemon started in Normal Mode by pid.
Someone (whose pid is given) started the deadlock daemon, maybe from DEADLOCK.MENU, maybe from the command line. If pid = 1 this was the auto-start on re-boot.
Deleting a Project using Datastage Steps to remove the project through Datastage :
1) to Datastage using ds.
2) Navigate to the Projects Tab
3) Select the Project name that needed to be deleted. 4) Once the project name is selected Click on Delete button. 5) This will ask for a confirmation ‘Are you sure you want to delete the project?’ Click ‘Yes’ to delete the project.
6. This will delete the selected datastage project.
LDAP Configuration Initial Setting in the WAS for Global security
Please follow the steps below to configure LDAP for IBM Information Server.
Prerequisites: Create VSED id and which has full istrative rights And get the Type, Host, Port, Base Distinguished name
Step 1: to the WAS Web Console using the https://<servername>:9043/ibm/console/logon.jsp and Click Security -> Global Security ->Under registries, click LDAP
Enter the required details as given below
Step 2: Change Active Registry to LDAP
Step 3: as root to the Datastage Server. Stop the IBM Information Server Cd etc/rc2.d # ./AppServer.sh -was - yqz99739 - mask31july Info WAS instance /Node:stvus059Node01/Server:server1/ updated with new information Info MetadataServer daemon script updated with new information # ^C # ./Directory.sh -delete_groups # ./Directory.sh -delete_s# ^C# # ./Directory.sh -delete_s
Package Installation guidelines Step 1: as ds
Step 2: Change the directory to DSEngine Directory
Eg: cd /local/apps/dsSoftware/715A/Ascential/DataStage/DSEngine
Step 3: Change the directory to bin in DSEngine
$cd bin
Step 4: Source the dsenv file
$../dsenv
Step 5: Execute the Datastage Package installer command
$. /dspackinst
Please find the screen shot for steps 3, 4, and 5
Please find the screenshot 1, 2 3 after the execution of Step 5
Screenshot 1:
Screenshot 2:
Screenshot 3:
Step 6: Enter the package directory (Screen shot 4)
Screen shot 4:
The package Installer will display the package information.(Screen shot 5)
Screen shot 5:
Step 7 The package installer will search for the Projects on the server and select the project you want to the plug-in to be ed (Screen shot 6)
Screen shot 6:
Step 8: Enter the Log file destination directory (Screen shot 7)
Screen shot 7:
The package installer will show the installation details which you have given in the previous steps (Screen shot 8)
Screen shot 8:
Step 9: Enter the options if you want to proceed (Screen shot 9)
Screen shot 9:
The installation confirmation will be displayed as below (Screen shot 10)
Screen shot 10:
Note: Proper considerations have to be taken when doing an FTP from the plug-in source to the Datastage server. Releasing Resource Locks
DataStage Director pull down Job->Cleanup Resources. Choosing this option will open the Job Resources interface.
To release a locked Item:
Select Show All in the Processes pane Select Show All in the locks pane Locate the Item id you wish to unlock and note the PID/#. For example rjPLAW_P1_LoadSTG_Seq has a PID of 27645
Locate the PID in the Processes pane and select the row. Release the lock by clicking on the button. This will kill the process holding the lock,thus releasing it.
Releasing Resource Locks using UNIVERSE Commands Step 1. Logon using ds.
Step 2. Change the directory to
$ cd /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
Step 3. Source the dsenv file.
$ ../dsenv
Step 4.Issue the below command
$ ./uv
and the following message will be displayed
DataStage Command Language 7.0 Copyright (c) 1997 - 2003 Ascential Software Corporation. All Rights Reserved DSEngine logged on: Fri May 12 13:24:49 2006
Step 5. Issue the below command
$ LOGTO
eg: LOGTO SCDW
$ LIST.READU EVERY
and the following messages will be displayed
Active Group Locks:
Record Group Group Group
Device.... Inode.... Netnode no Lmode G-Address. Locks ...RD ...SH ...EX 69847306
11234
0 36986 5 IN
1000
1
0
0
0
69847306
7126
0 40649 8 IN
B800
1
0
0
0
69847306
16839
0 58192 10 IN
B000
1
0
0
0
69847306
16839
0 40669 19 IN
7000
1
0
0
0
69847306
20851
0 40649 19 IN
1000
1
0
0
0
Active Record Locks: Device.... Inode.... Netnode no Lmode Pid Id Item-ID............. 69847306
11234
0 44468 5 RL 21068 ds RT_CONFIG66
69847306
11234
0 42852 5 RL 22684 ds RT_CONFIG66
69847306
7126
0 54892 8 RL 10644 ds RT_CONFIG354
69847306 69847306
7126 6997
0 54892 68 RL 10644 ds RT_CONFIG356 0 65053 69 RU 483 ds GSKLACIRSBSpecificDat
aInsertLots
Step 6: Identify the Resource locks
If the wants to release the Resource identified above in the messages higlighted .Issue the command below
$ LOGTO UV $ UNLOCK INODE 6997 65053 ALL
The below messages will be displayed
Clearing Record locks. Clearing GROUP locks. Clearing FILE locks.
Renaming Datastage Project Using Universe
Please backup and save the original project if anything goes wrong;
1. From within DS create project newname 2. From server remove directory newname 3. Rename newname.tmp to newname 4. Source the .dsenv 5. Type > bin/uv or bin/uvsh 6. LOGTO project 7. Type UPDATE. (This ensure that pointers are updated to reflect the correct installation directories etc.) 8. Type DS.TOOL(s) and select option 2 (this is to rebuild the repository indexes) 9. Once complete type n or press returns 10. Access the Project as normal
Restart of DataStage 7.5.1a Services Restarting of a Datastage service may be necessary under various circumstances. The most common need for a restart of the service is the changes made to the Environment file “dsenv”.
Restarting of Datastage Service is a two step process 1. Stop Datastage Service 2. Start Datastage Service
Prerequisites
1. Logon as ds 2. Stop SITESCOPE MONITOR – VERY IMPORTANT
After logging onto the Unix box using our credentials, we switch the to ds This can be done by issuing the command
su – ds
2. Check existence of client connections –
Before attempting to stop Datastage service, ensure that there are no client connections or phantom jobs running in the background.
This can be checked by issuing the commands
ps –efd | grep phantom
ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
a. Find out the of the process. This can be found by looking at the process entry Eg: szs42740 7854 7846 0 11:29:25 ? 0:07 dsapi_slave 9 8 0
A sample entry as shown above, indicates that the “szs42740” is having a client connection (dsapi_slave).
In such case, request the client (szs42740 in the example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
super mdc-kill-phantom
super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
Stop Datastage Service
Attempt to stop the service after performing prerequisite activities detailed above. The Datastage Service can be stopped by issuing the commands
cd $DSHOME
. ./dsenv
bin/uvsh
cd bin
./uv – –stop
This shuts down the server engine and frees any resources held by the server engine process.
Start Datastage Service
Wait for atleast 30 seconds, after stopping the Datastage service, before you attempt to restart the Datastage Service
The Datastage Service can be started by issuing the commands
/opt/dsSoftware/Ascential/Datastage/DSEngine/bin/uv – –start
This command starts the dsrpcd daemon, which is daemon for server engine.
Check Datastage Service
Check whether the Datastage service is running by issuing the following command
netstat –na | grep 31538
The above command may have multiple line output, but if the service is running then there should be a row with a “LISTEN”.
*.31538
*.*
0
0 49152
0 LISTEN
Common Problems – Restarting Datastage Service
1. Datastage Service is started, but cannot connect from Datastage clients
Symptom
The Datastage service was stopped and restarted, but attempting to connecting to the Host from the Datastage client (eg: Designer), results in an error such as
and issuing the command
netstat -na | grep 31538 does not return any record with “LISTEN”.
Cause
The service was restarted without ensuring that client connections are closed. This causes the “port” to be unavailable for any connections
Remedy
Restart the service once again using the commands by issuing commands under the sections “Stop Datastage Service” and “Start Datastage Service”. Stopping and Starting the service again is known to resolve this issue.
For any other problems, IBM
Restart of DataStage 8.1 Services
Restarting of a Datastage service may be necessary under various circumstances. The most common need for a restart of the service is the changes made to the Environment file “dsenv”.
Restarting of IBM Information Server 8.1 3. Stop Datastage Service 4. Start Datastage Service
Prerequisites
3. Disable the SiteScope Monitor for the server that you are going to re-start (e.g breus002) http://stvsawnv0539:8888/SiteScope/s/ 4. as ds and switch to super root .
After logging onto the Unix box using our credentials, we switch the to ds This can be done by issuing the command
super root-shell
2. Check existence of client connections –
Before attempting to stop Datastage service, ensure that there are no client connections or phantom jobs running in the background.
This can be checked by issuing the commands
ps –efd | grep phantom
ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
b. Find out the of the process. This can be found by looking at the process entry Eg: szs42740 7854 7846 0 11:29:25 ? 0:07 dsapi_slave 9 8 0
A sample entry as shown above, indicates that the “szs42740” is having a client connection (dsapi_slave).
In such case, request the client (szs42740 in the example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
super mdc-kill-phantom
super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
Stop Datastage Service
Attempt to stop the service after performing prerequisite activities detailed above.
The Datastage Service can be stopped by issuing the commands
cd /etc/rc2.d # ./S99ds.rc 'stop' Stopping JobMonApp JobMonApp has been shut down. DataStage Engine 8.1.0.0 instance "ade" has been brought down. # ./S99ISFAgents 'stop' Agent stopped. LoggingAgent stopped. # ./S99ISFServer 'stop' U0116I: Tool information is being logged in file /local/apps/DRS_dstage/IS81/IBM/AppServer/profiles/default/logs/server1/stopServer.log U0128I: Starting tool with the default profile U3100I: Reading configuration for server: server1 U3201I: Server stop request issued. Waiting for stop status. U4000I: Server server1 stop completed.
# ps -efd|grep java root 6042 5544 0 21:39:52 pts/3
0:00 grep java
# ps -efd|grep ds ds 3201 3200 0 20:27:24 ?
0:00 /opt/openssh/libexec/sftp-server
ds 3094 3092 0 20:24:47 ?
0:00 /opt/openssh/sbin/sshd -R
ds 3096 3094 0 20:24:47 pts/2 ds 14084 14082 0 14:50:16 pts/4
0:00 -ksh 0:00 -ksh
ds 14082 14080 0 14:50:16 ? ds 2050 25672 0 20:00:24 pts/5
0:00 /opt/openssh/sbin/sshd -R 0:00 tail -f startServer.log
root 6045 5544 0 21:40:01 pts/3
0:00 grep ds
ds 3200 3198 0 20:27:24 ?
0:00 /opt/openssh/sbin/sshd -R
ds 25670 25668 0 17:53:45 ? ds 25672 25670 0 17:53:45 pts/5 ds 5509 5497 0 21:31:36 ?
0:00 /opt/openssh/sbin/sshd -R 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R
ds 26245 1 0 18:01:36 ? 0:05 /local/apps/DRS_dstage/IS81/IBM/InformationServer/Server/PXEngine/bin/resource_ ds 5511 5509 0 21:31:36 pts/3
0:00 -ksh
# kill 26245 # ps -efd|grep ds ds 3201 3200 0 20:27:24 ?
0:00 /opt/openssh/libexec/sftp-server
ds 3094 3092 0 20:24:47 ?
0:00 /opt/openssh/sbin/sshd -R
ds 3096 3094 0 20:24:47 pts/2 ds 14084 14082 0 14:50:16 pts/4 ds 14082 14080 0 14:50:16 ? root 6100 5544 0 21:41:23 pts/3 ds 2050 25672 0 20:00:24 pts/5 ds 3200 3198 0 20:27:24 ? ds 25670 25668 0 17:53:45 ? ds 25672 25670 0 17:53:45 pts/5 ds 5509 5497 0 21:31:36 ? ds 5511 5509 0 21:31:36 pts/3
0:00 -ksh 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R 0:00 grep ds 0:00 tail -f startServer.log 0:00 /opt/openssh/sbin/sshd -R 0:00 /opt/openssh/sbin/sshd -R 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R 0:00 –ksh
netstat –na | grep 3153
This shuts down the server engine and frees any resources held by the server engine process.
Start Datastage Service
# ./S99ISFServer 'start' # ./S99ISFAgents 'start' LoggingAgent.pid: No such file or directory Starting LoggingAgent... LoggingAgent started. Agent.pid: No such file or directory Starting Agent... Agent started. # ./S99ds.rc 'start'. # ./S99dsrfcd.rc 'start'
Check Datastage Service
Check whether the Datastage service is running by issuing the following command
netstat –na | grep 3153
The above command may have multiple line output, but if the service is running then there should be a row with a “LISTEN”.
*.31538
*.*
0
0 49152
0 LISTEN
Common Problems – Restarting Datastage Service
2. Datastage Service is started, but cannot connect from Datastage clients
Symptom
The Datastage service was stopped and restarted, but attempting to connecting to the Host from the Datastage client (eg: Designer), results in an error such as
and issuing the command
netstat -na | grep 31538 does not return any record with “LISTEN”.
Cause
The service was restarted without ensuring that client connections are closed. This causes the “port” to be unavailable for any connections
Remedy
Restart the service once again using the commands by issuing commands under the sections “Stop Datastage Service” and “Start Datastage Service”. Stopping and Starting the service again is known to resolve this issue.
For any other problems, IBM Super root –shell
Restarting RTI Agent 1. Logon using super ds.
2. Change the directory to the RTIAgent bin /opt/Ascential/RTIAgent
$ cd /opt/dsSoftware/Ascential/RTIAgent/bin/
3. Start or stop the server using nohup command
For starting $ nohup ./RTIAgent.sh start &
For stopping $ nohup ./RTIAgent.sh stop &
4. Check whether the RTI server has been restarted .execute the below command
$ ps -ef| grep RTIAgent
Find the sample output for the above command
ps -efd|grep RTIAgent ds 26190 26178 0 14:02:32 pts/3 0:00 grep RTIAgent ds 26164 1 0 14:02:00 pts/2 0:01 /opt/dsSoftware/Ascential/RTIAgent/jre/bin/java Djava.library.path=/opt/dsSoft
Overview of Datastage Stages:
Aggregator Stage : Aggregator classifies data rows from a single input link into groups and calculates totals or other aggregate functions for each group. The summed totals for each group are output from the stage thro' output link. Group is a set of record with the same value for one or more columns Example : Transaction records might be grouped by both day of the week and by month. These groupings might show the busiest day of the week varies by season.
Change Apply Stage Takes the change data set, that contains the changes in the before and after data sets, from the Change Capture stage and applies the encoded change operations to a before data set to compute an after data set. The Change Apply stage read a record from the change data set and from the before data set, compares their key column values, and acts accordingly.
Filter Stage : The Filter stage transfers, unmodified, the records of the input data set which satisfy the specified requirements and filters out all other records. Filter stage can have a single input link and a any number of output links and, optionally, a single reject link. You can specify different requirements to route rows down different output links. The filtered out records can be routed to a reject link, if required.
Funnel Stage : Funnel Stage copies multiple input data sets to a single output data set. This operation is useful for combining separate data sets into a single large data set. The stage can have any number of input links and a single output link.
Stage : Definition : Stage performs operations on two or more data sets input to the stage and then outputs the resulting data set.
The input data sets are notionally identified as the "right" set and the "left" set, and "intermediate" sets. It has any number of input links and a single output link.
Lookup Stage : Lookup Stage used to perform lookup operations on a data set read into memory from any other Parallel job stage that can output data. It can also perform lookups directly in a DB2 or Oracle database or in a lookup table contained in a Lookup File Set stage.
Merge Stage : Stage combines a sorted master data set with one or more update data sets. The columns from the records in the master and update data sets are merged so that the output record contains all the columns from the master record plus any additional columns from each update record. A master record and an update record are merged only if both of them have the same values for the merge key column(s) that you specify. Merge key columns are one or more columns that exist in both the master and update records. The data sets input to the Merge stage must be key partitioned and sorted. This ensures that rows with the same key column values are located in the same partition and will be processed by the same node.
Modify Stage The Modify stage alters the record schema of its input data set. The modified data set is then output. It is a processing stage. It can have a single input and single output.
Pivot Stage : Pivot Stage converts columns in to rows. Eg., Mark-1 and Mark-2 are two columns. Task : Convert all the columns in to one column. Implication : Can be used to co SCD Type-3 to Type-2. Using Methodology : In the deviation field of the output column change the input columns in to one column. Eg., Column Name – "Marks". Derivation : Mark-1 and Mark-2. Note : Column "Marks" is derived from the input columns Mark-1 and Mark-2.
Remove Duplicates Stage The Remove Duplicates stage takes a single sorted data set as input, removes all duplicate records, and writes the results to an output data set. Removing duplicate records is a common way of cleansing a data set before you perform further processing. Two records are considered duplicates if they are adjacent in the input data set and have identical values for the key column(s).
Surrogate Key Generator Stage The Surrogate Key stage generates key columns for an existing data set can specify certain characteristics of the key sequence. The stage generates sequentially incrementing unique integers from a given starting point. The existing columns of the data set are ed straight through the stage. If the stage is operating in parallel, each node will increment the key by the number of partitions being written to.
Switch Stage The switch stage takes a single data set as input and assigns each input row to an output data set based on the value of a selector field. It can have a single input link, up to 128 output links and a single rejects link. This stage performs an operation similar to a C switch statement. Rows that satisfy none of the cases are output on the rejects link.
Compress Stage : The Compress stage uses the UNIX compress or GZIP utility to compress a data set. It converts a data set from a sequence of records into a stream of raw binary data A compressed data set cannot be processed by many stages until it is expanded, i.e., until its rows are returned to their normal format. Stages that do not perform column based processing or reorder the rows can operate on compressed data sets. For example, you can use the copy stage to create a copy of the compressed data set.
Expand Stage The Expand stage uses the UNIX compress or GZIP utility to expand the data set. It converts a data set from a stream of raw binary data into sequence of records.
Steps for Creating a New Datastage Project ........................................................................................... 43 Deadlock Daemon Locks using UNIVERSE Commands ........................................................................... 45 Deleting a Project using Datastage .................................................................................. 47 LDAP Configuration ................................................................................................................................. 49 Package Installation guidelines ............................................................................................................... 52 Releasing Resource Locks using UNIVERSE Commands .......................................................................... 59 Renaming Datastage Project Using Universe.......................................................................................... 61 Restart of DataStage 7.5.1a Services ...................................................................................................... 62 Restart of DataStage 8.1 Services ........................................................................................................... 66 Restarting RTI Agent ............................................................................................................................... 75 Overview of Datastage Stages: ................................................................................................................... 76 Aggregator Stage :................................................................................................................................... 76 Change Apply Stage ................................................................................................................................ 82 Takes the change data set, that contains the changes in the before and after data sets, from the Change Capture stage and applies the encoded change operations to a before data set to compute an after data set. .......................................................................................................................................... 82 Filter Stage : ............................................................................................................................................ 84 Funnel Stage :.......................................................................................................................................... 88 Stage : .............................................................................................................................................. 91 Lookup Stage : ......................................................................................................................................... 95 Merge Stage : Stage combines a sorted master data set with one or more update data sets. The columns from the records in the master and update data sets are merged so that the output record contains all the columns from the master record plus any additional columns from each update record. 96 Modify Stage ........................................................................................................................................... 98 Pivot Stage : .......................................................................................................................................... 103 Remove Duplicates Stage...................................................................................................................... 104 Surrogate Key Generator Stage ............................................................................................................ 105 Switch Stage .......................................................................................................................................... 106 Compress Stage :................................................................................................................................... 109 Expand Stage ......................................................................................................................................... 110
Introduction to Datastage History of Datastage Architecture of Datastage Components of Datastage
How to create Project: 1) to Datastage
2)
3) 4) Go to Project Tab and Click on Add button
5) 6) Provide the name of the project you want to create.
7)
Click on Project Properties provide the Access to s.
Steps to Create Sample Job: 1) Understand the Business Requirement 2) Open Datastage designer 3) Create Job(Parallel)/Server Job 4) Add stages 5) Configure each stage a. Datasource Info b. Table Names, Column names c. Mapping 6) Save, Compile and Run
How to Open DS Designer
Enter Datastage Name and and select the project you want to work and Click on OK
What is Job? •
Executable DataStage program
•
Created in DataStage Designer
•
Built using a graphical interface
•
Compiles into Orchestrate shell language (OSH)
Types of Jobs? Creating a Datastage Job:
How to Create ODBC Connection.
Business Requirement:
Gosales(MSSQL) Order Method OrderMethodCD
Gosalesdw(Oracle) ORDER_METHOD_DIM Order Nm
ORDER_METHOD_ID
ORDER_METHOD_DESC
Add Different Stages.(Add SQL Enterpirse, Oracle enterprise)
Configure the Stages(Source Stage and Target Stage)
Compile the Job
Populating Surrogate Key in Order Method Dimension Table: Wants to load the DIM_ORDER_METHOD from Order_Method table hosted on MS SQL Server database. In this case, want to generate Surrogate Key. Mapping Source Table(Order_Method) -ORDER_METHOD_CODE ORDER_METHOD_DESC
Target Table(DIM_ORDER_METHOD) ORDER_METHOD_KEY(surrogate_key) ORDER_METHOD_CODE ORDER_METHOD_DESC
Two ways to populating Surrogate key(Flat File or DB Sequence) 1) By using Surrogate Key Stage in the Job itself
2) By Using Transformer Stage in the Job.
Steps to design the Job 1) Add Stages(SQL enterprise, Trnsformer, Oracle enterprise) 2) Configure each and every stage
3)
4)
5)
6)
7)
8)
Surrogate key File Creation 1) Create new job to generate Surrogate file 2) Add Surrogate Key Generator Stage
3) Configure, compile, Run to generate the file
4)
R(Runtime Column Propagation) R can be used to populate columns available in the source table without defining at the stages. We can enable R functionality at Datastage
To use R in the jobs we need enable R flag at Source Stage and Transformer Stage.
Employee Dimension Population Business Requirement: Want to populate the Employee Dimension table from source Employee table available in Gosales
EMP
Trsnfr
Emp_dim
1) Add 3 Stages(SQL Enterprise, Oracle enterprise, Transformer)
Emp: R2: Wants to Populate Gender Name in the Target table based on Gender Code
BR: EMP_DIM: R3 Want to store Year of Hire and Month of Hire based on Hire Date available in the source.
EMP_DIM: R4 Wants to populate Termination Reason in the Employee Dim. Add Lookup Stage and Database Stage to read the records from Termination Lookup Table.
EMP_DIM: R5: Wants to populate Manger Code1, Manager_name1, Manger Code2, Manger Code3, Manger Code4, Manger Code5 in to Employee DIM table.
Data Set er(emp_ cd=emp_cd
EMp_Hist
er(mgr1_cd= emp_cd
EMP_HIST
Parameters: Parameters can be divided into 2 types. 1) Global Parameters(Project Level). 2) Local Parameters(Job Level). Global Parameters can be created in a datastage Local Parameters can be created in Datastage designer.
Global Parametres:
If you want to use these global parameters in the Job. We need include the parameters in the Job Parameters.
If we want logically group parameters, First need to create Parameter SET.
ORDER METHOD DIM POPULATION Using Insert and Update.
Change Capture Stage:
How to Implement SCD Type 2 using Change Capture: Source table: Order Method Order Method Code 1 2 3 4
Order method NM Fax Web Email Telephone
Target table should be KEY
CD 601 602 603 604 605
1 2 3 3 4
NM Fax Web E-Mail Email Telephone
CURR_INDICATOR Y Y N Y Y
Add different stages as mentioned below:
Configure Source DB stage to connect SQL Serer DB
Configure Lkp table to connect Order Method Dim table on Target DB:
Configure Change Capture Stage as mentioned Below:
Configure Transformer Stage as mentioned below:
Configure Target DB as mentioned Below to connect Target Table(Order Method Dim) for Insert
Configure Target DB to connect target table(Order Method Dim) for Update purpose.
SCD population using SCD Stage:
Configure the SCD stage as follows
Datastage Activity. Deleting a Corrupted Project Steps to remove the project manually through UV:
1) to UNIX using ds.
2) Make sure you are in the DSEngine folder
3) Source the dsenv and to the UV $ . ./dsenv $ bin/uv
4) Execute "LIST UV. <project name>" and if you see the project name type: "DELETE UV. project name"
5) "LIST UV_SCHEMA” to see the List of project names, then if you see the Project name type: ".SQL SCHEMA <project_name> FIX"
6) Check that you cannot see the project by typing "LIST UV_SCHEMA"
7) If you still see the project then enter "Drop SCHEMA project_name cascade;"
Restarting RTI server 1. Logon as Super ds -
2. Change the directory to the RTIServer bin
$ cd /opt/dsSoftware/Ascential/RTIServer/bin/ 3. Start or stop the server using nohup command
For starting $ nohup ./RTIServer.sh start & For stopping $ nohup ./RTIServer.sh stop &
4. Check whether the RTI server has been restarted. Execute the below command $ ps -ef| grep RTI Find the sample output for the above command ds 4977 4946 0 16:26:09 pts/7 0:00 grep RTI ds 20018 1 0 Feb 27 ? 1061:21 /opt/dsSoftware/Ascential/RTIServer/apps/jre/bin/java -Xmx256m -server -Dprogra Or open the IE browser and enter the url in the address bar http://<Server Name >:8080/rti/ Eg : http://stvsauxpac01.corpnet2.com:8080/rti/ http://kopsapace02.corpnet2.com:8080/rti/
Adding Oracle DSN Entries 1. Logon to Datastage Server as ds 2. Change directory to DSEngine folder 3. Start or stop the server using nohup command 4. Edit .odbc.ini file to add an entry for DSN. Pls find a sample Oracle DSN entries [ukdev495] Driver=/opt/dsSoftware/Ascential/DataStage/branded_odbc/lib/VMor820.so Description=DataDirect Oracle ServerName=ukdev495 CatalogOptions=0 ProcedureRetResults=0 EnableDescribeParam=0
EnableStaticCursorsForLongData=0 ApplicationUsingThreads=1
5. Save the file Note: DataStage does not need to be stopped or restarted after this change
Configuring .odbc.ini file to add DSN for DB2 connectivity: The .odbc.ini file in the Datastage home directory (/opt/dsSoftware/Ascential/DataStage/DSEngine) should have an entry for every database to which the wants to connect using ODBC connectivity.
This document is about adding an entry in .odbc.ini file to allow for DB2 connectivity. The Sample Entry for DB2 connectivity is given below
[P M AR_JD E_ 44 6 _OD BC] D r iver =/o pt/ dsS oftwar e/ Ascential/D ataS tage/br anded_od bc/lib/ VM db2 2 0 .so D escr iption=D ataD ir ect 5 .0 0 D B2 Wir e P r otocol D r iver AddS tr ingToCr eateTa ble= Alter nateID = Collectio n=JD FD ATA D ynamicS ections=1 0 0 Gr antAuthid=P UBL IC Gr antExecute=1 IpAddr ess=1 6 6 .7 1 .15 5.2 9 IsolationL evel=CURS O R_S TABIL ITY L ocation=NETD ATA
L ogonID =S CD WUS ER P asswor d= P ackage=P M ARP CK P ackageOwner =S CD WUS ER TP or t=4 46 WithHold=1
The entry within [ ] is the name of the entry (PMAR_JDE_446_ODBC in this case)
The driver is the location of ODBC driver for DB2. An ODBC driver is needed to allow connectivity from Datastage to any Database.
AddStringToCreateTable is the string that should be added while issuing create table commands
Collection is the name of the Library that has tables to which the has access. (I believe that no matter which library you are using here you would be able to access the ones your DB has privileges).
IpAddress is the IP Address of the Database Server
Location is the name of the Relational Database (RDB) on the AS/400 server
LogonID is the Logon with which the logs on to RDB on AS/400
is the for the
Package is any name upto 7 characters to uniquely identify this connectivity
PackageOwner is typically the same
TPort is the port number on which DB2 is listening.
Finding out the Location:
Run the "WRKRDBDIRE" command on AS/400 and use the entry against the one that is typed *LOCAL.
Finding out the Port Number:
To determine the correct port number, execute 'NETSTAT' from an AS/400 command line. Choose option 3 to display a list of active ports on the AS/400. Find the entry for DRDA and press F-14 to toggle the display the port number.
DRDA is the communicating protocol for communicating with DB2.
For Collection we have used JDFDATA, which is a Vanilla Library.
Once the changes are made to .ODBC.INI file, the next step is to Bind the package. This is essential before checking the DSN Connectivity.
The bind command can be executed from branded_odbc/lib directory as
$. /bind20 PMAR_JDE_8471_ODBC
where PMAR_JDE_8471_ODBC is the name of the DSN.
Bindings may not happen successfully sometimes and most probable reasons are
1. Wrong Port: This will cause the Bind operation to hang forever. Press ctrl c to break from the operation and re-edit the entries in .odbc.ini by specifying the correct port umber using the command listed above
2. Incorrect Id/: Attempting to bind the package with incorrect credentials or credentials having insufficient privileges will cause the Bind operation to fail with the error 7680. Discuss with DB2 or AS/400 to get the correct credentials and/or privileges.
3. Incorrect Port / IP Address: Trying to bind a package with incorrect IP/Port will cause the binding to fail with the error 7505. Follow the commands listed above to identify the Port number and discuss with DB2 or AS/400 to get the correct IP Address.
4. Incorrect Location/Collection: Package bind will fail with the error 1242 if the Location or collection mentioned in the .odbc.ini file is incorrect. Use the procedure mentioned above to find out the correct Location and DB2 or AS/400 to get the Collection name to which you have access.
5. Network Error: Package creation and binding may sometimes fail with the error 7500 which would indicate a network failure.
The cause for other error messages during the package binding can be found by looking at the file ivdb220.po in the directory /branded_odbc/locale/en_US/LC_MESSAGES
Once the Bind is successful, the next step is to test the ODBC connectivity. This can be done as 1. If you haven’t previously done so, cd to $DSHOME and set up the DataStage environment by running dsenv: . ./dsenv 2.
Invoke the DataStage engine shell:
./bin/dssh The DSEngine shell starts. 3. Log to the project: LOGTO PMARDev Where project_name is case sensitive. 4. Get a list of available DSNs by typing: DS_CONNECT 5. Test the required connection by typing: DS_CONNECT PMAR_JDE_8471_ODBC 6. Once the test is successful, exit out by pressing .Q
Once the DSN connectivity is tested from the Unix box, the next step is to import tables from Datastage using ODBC and start using the same in Datastage Jobs.
Configuring uvconfig file for avoiding Timeout: 1. Logon using ds.
2. Check that there are no client connections or phantom jobs running in the background
This can be checked by issuing the commands
$ ps –efd | grep phantom
$ ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
Request the client (szs42740 for example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients (szs42740 for example) are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
$ super mdc-kill-phantom
$ super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
3. Change the directory to
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
4. Source the dsenv file.
$ ../dsenv
5. Stop the service
$ . /uv - -stop.
6. Change the directory
$ /opt/dsSoftware/Ascential/DataStage/DSEngine
7. Take a back up of uvconfig file.
8. Change the below mentioned values in the uvconfig file using Vi editor
RLTABSZ 100 GLTABSZ 100 MAXRLOCK 99
9. Save the uvconfig file.
10. Make the changes to take effect $ ./uv – –regen
11. Restart the DS server
$ ./uv – –start
12. Change the directory to DsEngine .To Confirm the changes have taken effect issue the command below
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/ $ bin/uvregen -t
Note: $ is the Unix prompt
Steps for Creating a New Datastage Project Step 1: to Datastage using ds Step 2: After successful click on the “Projects” Tab and then click “Add”. Step 3: “Add Project” window will be displayed.
Step 4: Enter the name of the Project. Step 5: Enter the Project Path (/datastage/Projects/)
Step 6: Click “OK” Step 7: Select the created project and click “Properties” Step 8: Check the options in the Project Properties as displayed in the image below
Steps for Creating Access permissions for a Datstage Project
Step 1: to Datastage using ds Step 2: Change the directory to /datastage/Projects/
s who are not part of the primary group(Eg:dstage) or secondary group (Eg : ds_scdw) entered in the .developer. file cannot access the project.
Deadlock Daemon Locks using UNIVERSE Commands Step 1. Logon using ds.
Step 2. Change the directory to
$ /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
Step 3. Source the dsenv file.
$ ../dsenv
Step 4.Issue the below command
$ ./uv
and the following message will be displayed
DataStage Command Language 7.0 Copyright (c) 1997 - 2003 Ascential Software Corporation. All Rights Reserved DSEngine logged on: Fri May 12 13:24:49 2006
Step 5. Issue the below command
> LOGTO UV > DEADLOCK.MENU
You will get the following messages DataStage Deadlock Manager istration
1. Examine the deadlock daemon logfile
2. Start the Deadlock daemon
3. Halt the Deadlock daemon
4. Purge the logfile
5. Check for deadlock
6. Select victim for deadlock resolution
Step 6: choose the options above
Step 7: Issue the following command to quit the universe
>Q
Find the explanation for the messages in the Dsdlock.log
1. DeadLock Daemon started in Query Mode by pid .
Someone executed dsdlockd -p command
2. DeadLock Daemon started in Dead Process Cleanup Mode.
The deadlock daemon on waking found defunct processes and initiated a cleanup
3. DeadLock Daemon started in Normal Mode by pid.
Someone (whose pid is given) started the deadlock daemon, maybe from DEADLOCK.MENU, maybe from the command line. If pid = 1 this was the auto-start on re-boot.
Deleting a Project using Datastage Steps to remove the project through Datastage :
1) to Datastage using ds.
2) Navigate to the Projects Tab
3) Select the Project name that needed to be deleted. 4) Once the project name is selected Click on Delete button. 5) This will ask for a confirmation ‘Are you sure you want to delete the project?’ Click ‘Yes’ to delete the project.
6. This will delete the selected datastage project.
LDAP Configuration Initial Setting in the WAS for Global security
Please follow the steps below to configure LDAP for IBM Information Server.
Prerequisites: Create VSED id and which has full istrative rights And get the Type, Host, Port, Base Distinguished name
Step 1: to the WAS Web Console using the https://<servername>:9043/ibm/console/logon.jsp and Click Security -> Global Security ->Under registries, click LDAP
Enter the required details as given below
Step 2: Change Active Registry to LDAP
Step 3: as root to the Datastage Server. Stop the IBM Information Server Cd etc/rc2.d # ./AppServer.sh -was - yqz99739 - mask31july Info WAS instance /Node:stvus059Node01/Server:server1/ updated with new information Info MetadataServer daemon script updated with new information # ^C # ./Directory.sh -delete_groups # ./Directory.sh -delete_s# ^C# # ./Directory.sh -delete_s
Package Installation guidelines Step 1: as ds
Step 2: Change the directory to DSEngine Directory
Eg: cd /local/apps/dsSoftware/715A/Ascential/DataStage/DSEngine
Step 3: Change the directory to bin in DSEngine
$cd bin
Step 4: Source the dsenv file
$../dsenv
Step 5: Execute the Datastage Package installer command
$. /dspackinst
Please find the screen shot for steps 3, 4, and 5
Please find the screenshot 1, 2 3 after the execution of Step 5
Screenshot 1:
Screenshot 2:
Screenshot 3:
Step 6: Enter the package directory (Screen shot 4)
Screen shot 4:
The package Installer will display the package information.(Screen shot 5)
Screen shot 5:
Step 7 The package installer will search for the Projects on the server and select the project you want to the plug-in to be ed (Screen shot 6)
Screen shot 6:
Step 8: Enter the Log file destination directory (Screen shot 7)
Screen shot 7:
The package installer will show the installation details which you have given in the previous steps (Screen shot 8)
Screen shot 8:
Step 9: Enter the options if you want to proceed (Screen shot 9)
Screen shot 9:
The installation confirmation will be displayed as below (Screen shot 10)
Screen shot 10:
Note: Proper considerations have to be taken when doing an FTP from the plug-in source to the Datastage server. Releasing Resource Locks
DataStage Director pull down Job->Cleanup Resources. Choosing this option will open the Job Resources interface.
To release a locked Item:
Select Show All in the Processes pane Select Show All in the locks pane Locate the Item id you wish to unlock and note the PID/#. For example rjPLAW_P1_LoadSTG_Seq has a PID of 27645
Locate the PID in the Processes pane and select the row. Release the lock by clicking on the button. This will kill the process holding the lock,thus releasing it.
Releasing Resource Locks using UNIVERSE Commands Step 1. Logon using ds.
Step 2. Change the directory to
$ cd /opt/dsSoftware/Ascential/DataStage/DSEngine/bin
Step 3. Source the dsenv file.
$ ../dsenv
Step 4.Issue the below command
$ ./uv
and the following message will be displayed
DataStage Command Language 7.0 Copyright (c) 1997 - 2003 Ascential Software Corporation. All Rights Reserved DSEngine logged on: Fri May 12 13:24:49 2006
Step 5. Issue the below command
$ LOGTO
eg: LOGTO SCDW
$ LIST.READU EVERY
and the following messages will be displayed
Active Group Locks:
Record Group Group Group
Device.... Inode.... Netnode no Lmode G-Address. Locks ...RD ...SH ...EX 69847306
11234
0 36986 5 IN
1000
1
0
0
0
69847306
7126
0 40649 8 IN
B800
1
0
0
0
69847306
16839
0 58192 10 IN
B000
1
0
0
0
69847306
16839
0 40669 19 IN
7000
1
0
0
0
69847306
20851
0 40649 19 IN
1000
1
0
0
0
Active Record Locks: Device.... Inode.... Netnode no Lmode Pid Id Item-ID............. 69847306
11234
0 44468 5 RL 21068 ds RT_CONFIG66
69847306
11234
0 42852 5 RL 22684 ds RT_CONFIG66
69847306
7126
0 54892 8 RL 10644 ds RT_CONFIG354
69847306 69847306
7126 6997
0 54892 68 RL 10644 ds RT_CONFIG356 0 65053 69 RU 483 ds GSKLACIRSBSpecificDat
aInsertLots
Step 6: Identify the Resource locks
If the wants to release the Resource identified above in the messages higlighted .Issue the command below
$ LOGTO UV $ UNLOCK INODE 6997 65053 ALL
The below messages will be displayed
Clearing Record locks. Clearing GROUP locks. Clearing FILE locks.
Renaming Datastage Project Using Universe
Please backup and save the original project if anything goes wrong;
1. From within DS create project newname 2. From server remove directory newname 3. Rename newname.tmp to newname 4. Source the .dsenv 5. Type > bin/uv or bin/uvsh 6. LOGTO project 7. Type UPDATE. (This ensure that pointers are updated to reflect the correct installation directories etc.) 8. Type DS.TOOL(s) and select option 2 (this is to rebuild the repository indexes) 9. Once complete type n or press returns 10. Access the Project as normal
Restart of DataStage 7.5.1a Services Restarting of a Datastage service may be necessary under various circumstances. The most common need for a restart of the service is the changes made to the Environment file “dsenv”.
Restarting of Datastage Service is a two step process 1. Stop Datastage Service 2. Start Datastage Service
Prerequisites
1. Logon as ds 2. Stop SITESCOPE MONITOR – VERY IMPORTANT
After logging onto the Unix box using our credentials, we switch the to ds This can be done by issuing the command
su – ds
2. Check existence of client connections –
Before attempting to stop Datastage service, ensure that there are no client connections or phantom jobs running in the background.
This can be checked by issuing the commands
ps –efd | grep phantom
ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
a. Find out the of the process. This can be found by looking at the process entry Eg: szs42740 7854 7846 0 11:29:25 ? 0:07 dsapi_slave 9 8 0
A sample entry as shown above, indicates that the “szs42740” is having a client connection (dsapi_slave).
In such case, request the client (szs42740 in the example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
super mdc-kill-phantom
super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
Stop Datastage Service
Attempt to stop the service after performing prerequisite activities detailed above. The Datastage Service can be stopped by issuing the commands
cd $DSHOME
. ./dsenv
bin/uvsh
cd bin
./uv – –stop
This shuts down the server engine and frees any resources held by the server engine process.
Start Datastage Service
Wait for atleast 30 seconds, after stopping the Datastage service, before you attempt to restart the Datastage Service
The Datastage Service can be started by issuing the commands
/opt/dsSoftware/Ascential/Datastage/DSEngine/bin/uv – –start
This command starts the dsrpcd daemon, which is daemon for server engine.
Check Datastage Service
Check whether the Datastage service is running by issuing the following command
netstat –na | grep 31538
The above command may have multiple line output, but if the service is running then there should be a row with a “LISTEN”.
*.31538
*.*
0
0 49152
0 LISTEN
Common Problems – Restarting Datastage Service
1. Datastage Service is started, but cannot connect from Datastage clients
Symptom
The Datastage service was stopped and restarted, but attempting to connecting to the Host from the Datastage client (eg: Designer), results in an error such as
and issuing the command
netstat -na | grep 31538 does not return any record with “LISTEN”.
Cause
The service was restarted without ensuring that client connections are closed. This causes the “port” to be unavailable for any connections
Remedy
Restart the service once again using the commands by issuing commands under the sections “Stop Datastage Service” and “Start Datastage Service”. Stopping and Starting the service again is known to resolve this issue.
For any other problems, IBM
Restart of DataStage 8.1 Services
Restarting of a Datastage service may be necessary under various circumstances. The most common need for a restart of the service is the changes made to the Environment file “dsenv”.
Restarting of IBM Information Server 8.1 3. Stop Datastage Service 4. Start Datastage Service
Prerequisites
3. Disable the SiteScope Monitor for the server that you are going to re-start (e.g breus002) http://stvsawnv0539:8888/SiteScope/s/ 4. as ds and switch to super root .
After logging onto the Unix box using our credentials, we switch the to ds This can be done by issuing the command
super root-shell
2. Check existence of client connections –
Before attempting to stop Datastage service, ensure that there are no client connections or phantom jobs running in the background.
This can be checked by issuing the commands
ps –efd | grep phantom
ps –efd | grep dsapi
There should not be any processes as a result of the above commands. If there are any phantom processes or client connections, they need to be killed using the process below.
b. Find out the of the process. This can be found by looking at the process entry Eg: szs42740 7854 7846 0 11:29:25 ? 0:07 dsapi_slave 9 8 0
A sample entry as shown above, indicates that the “szs42740” is having a client connection (dsapi_slave).
In such case, request the client (szs42740 in the example) to close their client connections and/or log onto to Unix Box and kill the process.
If the clients are not traceable and/or there is a pressing need to restart the Datastage service, issue the following commands
super mdc-kill-phantom
super mdc-kill-dsapi_slave
The first command kills all the phantom processes and the second command kills all the dsapi_slave connections.
Stop Datastage Service
Attempt to stop the service after performing prerequisite activities detailed above.
The Datastage Service can be stopped by issuing the commands
cd /etc/rc2.d # ./S99ds.rc 'stop' Stopping JobMonApp JobMonApp has been shut down. DataStage Engine 8.1.0.0 instance "ade" has been brought down. # ./S99ISFAgents 'stop' Agent stopped. LoggingAgent stopped. # ./S99ISFServer 'stop' U0116I: Tool information is being logged in file /local/apps/DRS_dstage/IS81/IBM/AppServer/profiles/default/logs/server1/stopServer.log U0128I: Starting tool with the default profile U3100I: Reading configuration for server: server1 U3201I: Server stop request issued. Waiting for stop status. U4000I: Server server1 stop completed.
# ps -efd|grep java root 6042 5544 0 21:39:52 pts/3
0:00 grep java
# ps -efd|grep ds ds 3201 3200 0 20:27:24 ?
0:00 /opt/openssh/libexec/sftp-server
ds 3094 3092 0 20:24:47 ?
0:00 /opt/openssh/sbin/sshd -R
ds 3096 3094 0 20:24:47 pts/2 ds 14084 14082 0 14:50:16 pts/4
0:00 -ksh 0:00 -ksh
ds 14082 14080 0 14:50:16 ? ds 2050 25672 0 20:00:24 pts/5
0:00 /opt/openssh/sbin/sshd -R 0:00 tail -f startServer.log
root 6045 5544 0 21:40:01 pts/3
0:00 grep ds
ds 3200 3198 0 20:27:24 ?
0:00 /opt/openssh/sbin/sshd -R
ds 25670 25668 0 17:53:45 ? ds 25672 25670 0 17:53:45 pts/5 ds 5509 5497 0 21:31:36 ?
0:00 /opt/openssh/sbin/sshd -R 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R
ds 26245 1 0 18:01:36 ? 0:05 /local/apps/DRS_dstage/IS81/IBM/InformationServer/Server/PXEngine/bin/resource_ ds 5511 5509 0 21:31:36 pts/3
0:00 -ksh
# kill 26245 # ps -efd|grep ds ds 3201 3200 0 20:27:24 ?
0:00 /opt/openssh/libexec/sftp-server
ds 3094 3092 0 20:24:47 ?
0:00 /opt/openssh/sbin/sshd -R
ds 3096 3094 0 20:24:47 pts/2 ds 14084 14082 0 14:50:16 pts/4 ds 14082 14080 0 14:50:16 ? root 6100 5544 0 21:41:23 pts/3 ds 2050 25672 0 20:00:24 pts/5 ds 3200 3198 0 20:27:24 ? ds 25670 25668 0 17:53:45 ? ds 25672 25670 0 17:53:45 pts/5 ds 5509 5497 0 21:31:36 ? ds 5511 5509 0 21:31:36 pts/3
0:00 -ksh 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R 0:00 grep ds 0:00 tail -f startServer.log 0:00 /opt/openssh/sbin/sshd -R 0:00 /opt/openssh/sbin/sshd -R 0:00 -ksh 0:00 /opt/openssh/sbin/sshd -R 0:00 –ksh
netstat –na | grep 3153
This shuts down the server engine and frees any resources held by the server engine process.
Start Datastage Service
# ./S99ISFServer 'start' # ./S99ISFAgents 'start' LoggingAgent.pid: No such file or directory Starting LoggingAgent... LoggingAgent started. Agent.pid: No such file or directory Starting Agent... Agent started. # ./S99ds.rc 'start'. # ./S99dsrfcd.rc 'start'
Check Datastage Service
Check whether the Datastage service is running by issuing the following command
netstat –na | grep 3153
The above command may have multiple line output, but if the service is running then there should be a row with a “LISTEN”.
*.31538
*.*
0
0 49152
0 LISTEN
Common Problems – Restarting Datastage Service
2. Datastage Service is started, but cannot connect from Datastage clients
Symptom
The Datastage service was stopped and restarted, but attempting to connecting to the Host from the Datastage client (eg: Designer), results in an error such as
and issuing the command
netstat -na | grep 31538 does not return any record with “LISTEN”.
Cause
The service was restarted without ensuring that client connections are closed. This causes the “port” to be unavailable for any connections
Remedy
Restart the service once again using the commands by issuing commands under the sections “Stop Datastage Service” and “Start Datastage Service”. Stopping and Starting the service again is known to resolve this issue.
For any other problems, IBM Super root –shell
Restarting RTI Agent 1. Logon using super ds.
2. Change the directory to the RTIAgent bin /opt/Ascential/RTIAgent
$ cd /opt/dsSoftware/Ascential/RTIAgent/bin/
3. Start or stop the server using nohup command
For starting $ nohup ./RTIAgent.sh start &
For stopping $ nohup ./RTIAgent.sh stop &
4. Check whether the RTI server has been restarted .execute the below command
$ ps -ef| grep RTIAgent
Find the sample output for the above command
ps -efd|grep RTIAgent ds 26190 26178 0 14:02:32 pts/3 0:00 grep RTIAgent ds 26164 1 0 14:02:00 pts/2 0:01 /opt/dsSoftware/Ascential/RTIAgent/jre/bin/java Djava.library.path=/opt/dsSoft
Overview of Datastage Stages:
Aggregator Stage : Aggregator classifies data rows from a single input link into groups and calculates totals or other aggregate functions for each group. The summed totals for each group are output from the stage thro' output link. Group is a set of record with the same value for one or more columns Example : Transaction records might be grouped by both day of the week and by month. These groupings might show the busiest day of the week varies by season.
Change Apply Stage Takes the change data set, that contains the changes in the before and after data sets, from the Change Capture stage and applies the encoded change operations to a before data set to compute an after data set. The Change Apply stage read a record from the change data set and from the before data set, compares their key column values, and acts accordingly.
Filter Stage : The Filter stage transfers, unmodified, the records of the input data set which satisfy the specified requirements and filters out all other records. Filter stage can have a single input link and a any number of output links and, optionally, a single reject link. You can specify different requirements to route rows down different output links. The filtered out records can be routed to a reject link, if required.
Funnel Stage : Funnel Stage copies multiple input data sets to a single output data set. This operation is useful for combining separate data sets into a single large data set. The stage can have any number of input links and a single output link.
Stage : Definition : Stage performs operations on two or more data sets input to the stage and then outputs the resulting data set.
The input data sets are notionally identified as the "right" set and the "left" set, and "intermediate" sets. It has any number of input links and a single output link.
Lookup Stage : Lookup Stage used to perform lookup operations on a data set read into memory from any other Parallel job stage that can output data. It can also perform lookups directly in a DB2 or Oracle database or in a lookup table contained in a Lookup File Set stage.
Merge Stage : Stage combines a sorted master data set with one or more update data sets. The columns from the records in the master and update data sets are merged so that the output record contains all the columns from the master record plus any additional columns from each update record. A master record and an update record are merged only if both of them have the same values for the merge key column(s) that you specify. Merge key columns are one or more columns that exist in both the master and update records. The data sets input to the Merge stage must be key partitioned and sorted. This ensures that rows with the same key column values are located in the same partition and will be processed by the same node.
Modify Stage The Modify stage alters the record schema of its input data set. The modified data set is then output. It is a processing stage. It can have a single input and single output.
Pivot Stage : Pivot Stage converts columns in to rows. Eg., Mark-1 and Mark-2 are two columns. Task : Convert all the columns in to one column. Implication : Can be used to co SCD Type-3 to Type-2. Using Methodology : In the deviation field of the output column change the input columns in to one column. Eg., Column Name – "Marks". Derivation : Mark-1 and Mark-2. Note : Column "Marks" is derived from the input columns Mark-1 and Mark-2.
Remove Duplicates Stage The Remove Duplicates stage takes a single sorted data set as input, removes all duplicate records, and writes the results to an output data set. Removing duplicate records is a common way of cleansing a data set before you perform further processing. Two records are considered duplicates if they are adjacent in the input data set and have identical values for the key column(s).
Surrogate Key Generator Stage The Surrogate Key stage generates key columns for an existing data set can specify certain characteristics of the key sequence. The stage generates sequentially incrementing unique integers from a given starting point. The existing columns of the data set are ed straight through the stage. If the stage is operating in parallel, each node will increment the key by the number of partitions being written to.
Switch Stage The switch stage takes a single data set as input and assigns each input row to an output data set based on the value of a selector field. It can have a single input link, up to 128 output links and a single rejects link. This stage performs an operation similar to a C switch statement. Rows that satisfy none of the cases are output on the rejects link.
Compress Stage : The Compress stage uses the UNIX compress or GZIP utility to compress a data set. It converts a data set from a sequence of records into a stream of raw binary data A compressed data set cannot be processed by many stages until it is expanded, i.e., until its rows are returned to their normal format. Stages that do not perform column based processing or reorder the rows can operate on compressed data sets. For example, you can use the copy stage to create a copy of the compressed data set.
Expand Stage The Expand stage uses the UNIX compress or GZIP utility to expand the data set. It converts a data set from a stream of raw binary data into sequence of records.
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