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Shrink Postgres DB

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  • S
    S
    Spheron
    wrote on last edited by
    #1

    Hello @all,

    played here around with windows event logging in NetXMS V5.2.4 (Debian, Postgres).

    Therefore the database size blowed up. I have changed serveral retention values an the housekeeper is running a few minutes an do it's best, but the database don't shrinks.

    What can i do to shrink the DB? Deleting and restoring?

    Greetings
    Marco

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    0
    • F
      F
      Filipp Sudanov
      wrote on last edited by
      #2

      If you've been using windows event syncronization, then 

      VACUUM FULL WIN_EVENT_LOG; 
      query might help, but it also needs additional disk space for it to run (https://www.postgresql.org/docs/current/sql-vacuum.html). 

      If do don't need any records from this table, then
      TRUNCATE WIN_EVENT_LOG;
      will clean all records and instantly reclaim disk space

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      • S
        S
        Spheron
        wrote on last edited by
        #3

        Hi Filipp,

        you are my hero!!!  ;D

        Thanks for the infos. I truncate the table and postgres frees up the storage space...

        Many thanks!

        Greetings
        Marco

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