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Thread: "enqueue" and "log file sync" events

  1. 06-26-2002, 10:23 AM #1
    tpclouis
    tpclouis is offline Junior Member
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    Feb 2002
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    Dear All,

    I use to take the statspack report to monitor the performance of DB. It is displaying the top 5 wait events. Out of 5 two events "enqueue" and "log file sync" are in the top list and are not familiar to me.
    Can anybody explain about these two events. How are these related with DB performance ??.

    Thanks in advance

    Louis.
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  2. 06-26-2002, 10:55 AM #2
    marist89's Avatar
    marist89
    marist89 is offline Super-Genius
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    enqueue wait is related to locking. Your users a waiting a lot on other users.
    log file sync waits may indicate I/O related issues.

    See http://otn.oracle.com/docs/products/...pa3.htm#264253 for details.
    Jeff Hunter
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