ODI CDC using Logminer - how to capture all changes for one PK
Hi,
Let me explain our scenario and challenges we are facing -
*1. Captures all changes in CDC –*
We are using CDC (LOGMINER) to capture change. Currently current ODI code capture latest change happened during last execution.
Now requirement is to capture all changes happened after last execution cycle.
To achieve this, can you please suggest what changes we need to do in current code.
*2. Performance Improvement* - Current CDC can handle 400 TPS (Transactions per second, here transactions means single record) and we are looking for 2000 TPS
we are expecting 15 million records for INIT load and 7-8 million records on daily basis for CDC
What needs to be done to improve the performance. In case if you need more details to answer this, please let me know.
Oracle database version at source and target - 11g
ODI - 11g
Thanks in advance.
Regards,
Dinesh.
Hi Dinesh,
I have some experience with ODI And Logminer / Streams.
Can you confirm what JKM you are using?.
For your 1st point - the logic to only get the latest update is contained within the JV$ / JV$D view , you can edit the definitions of these views if you want to bring through all transactions - there should be an SCN number in the change table you can order by if you are interested in the order the transactions occurred - I assume you are otherwise your target DB will get out of sync.
As for performance - Have you tweaked the Streams settings ? How many Change sets do you have ?
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