odd wait type

  • Have a server having performance issues when look at wait types my number #1 is

    FT_IFTSHC_MUTEX281386.4

    never seen this on any other servers

  • Any database on that server have Full Text Indexing enabled on it?

    It's in Glenn's list of benign waits to ignore, so I'd just ignore it (lots of waits should be ignored as they're expected or benign)

    http://www.sqlskills.com/blogs/glenn/category/dmv-queries/

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • It occurs when threads busy with full text operations wait for synchronisation.

    https://www.sqlskills.com/help/waits/ft_iftshc_mutex/

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass

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