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  1. #1
    Join Date
    Mar 2005

    session taking up resources and the SQL is unknown

    I am looking at the database through OEM. It is 10g. there is one session that has spiked the the active session section. When I click on the top activity and the sesion ID the sql with the most activity shows up as unknown. the majority of the activity is a commit. When I click on the general tab it shows for wait log file sync. can somone shed some light on this. When I query the V$SQLAREA view for poor sql queries I don't see anything.

  2. #2
    Join Date
    Mar 2007
    Ft. Lauderdale, FL
    Affected process is waiting on Log Writer a.k.a. LGWR
    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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