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Thread: Ora-04031

  1. 07-31-2007, 03:45 PM #1
    claire
    claire is offline Junior Member
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    Smile Ora-04031

    Hi All,

    I got an error message like below.

    Failed to connect to database instance: ORA-04031: unable to allocate 32 bytes of shared memory ("shared pool","DATABASESYS","trigger inform","kglhin: temp").

    I understand that this is because more shared memory is needed than was allocated in the shared pool.

    Could someone please advise how to increase shared memory?

    Thanks
    Claire
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  2. 07-31-2007, 05:23 PM #2
    davey23uk
    davey23uk is offline Senior Advisor
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    are you using bind variables?
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  3. 07-31-2007, 05:46 PM #3
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    PAVB
    PAVB is offline Senior Advisor
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    You have got a bad case of shared pool fragmentation.

    As a temporary workaround you can flush the shared pool, which would act like an aspirin.

    For a more lasting solution you have to bounce the instance, which would act as antibiotic.

    Vaccines are a little more complicated and involve proper SGA setup as well as good quality coding.

    For how long has been that instance up-and-running?
    Oracle version and O/S version?
    Pablo (Paul) Berzukov

    Author of Understanding Database Administration available at amazon and other bookstores.

    Disclaimer: Advice is provided to the best of my knowledge but no implicit or explicit warranties are provided. Since the advisor explicitly encourages testing any and all suggestions on a test non-production environment advisor should not held liable or responsible for any actions taken based on the given advice.
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