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Former Member

Frequent CMS (DB2) locks causing slow response and search index freezes

Hello Colleagues,

We have BI 4.0 SP5 installed and we are using DB2 as our CMS database. We encounter frequent CMS locks and this is causing platform search index to fail. So we stopped indexing, and we are trying to understand why this behavior occurs.

We have already referred to the following, but it does not seem pertinent for our situation

1640918 - Getting frequent deadlocks in CMS DB pointing to MS
SQL server in BI 4.0

1787321 - database Deadlock warnings in event viewer due to

indexing of search service.


All APS settings are fine tuned to reflect best practices. DSL Bridge @ 6GB, Webi APS @ 6 GB, 4 WebI processing servers on each node.

The question now is how do I prevent database locks in the future. We are unable to run platform search indexing as it causes database locks

Can you please advise us as to how we can fix this problem ?

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2 Answers

  • Posted on May 29, 2013 at 04:51 PM

    Hi Narender,

    Have to tried suggestions mentioned in KBA 1640934

    Regards,

    Sohel



    1640934

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    • Hello Narender,

      The value which you are displaying are no where related to processIds instead they are available with in your CMS database table named CMS_RELATIONS.

      CMS_RELATIONS6 for BO 3.x

      CMS_RELATIONS7 for BO 4.x

      Your are facing issues with this object whose SI_ID is 3356 and its parent id is 1892917. You may required to use Query builder to analyse bit more on these two repository objects.

      Regards,

      Mani

  • author's profile photo Former Member
    Former Member
    Posted on May 30, 2013 at 11:24 AM

    Schedule Crawling at non-load time or schedule it at off hours.

    Reduce the level of Indexing.

    You may also try and install SP6 on you test server and check whether SP6 helps improving the performance.

    Regards,

    Animesh Kumar

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