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Transaction retention and History retention

    質問

  • SQL Server 2008 R2, Transactional replication

    Hi guys,

    I am new in replication and I am installing and configuring a transactional replication to learn and test how it works.

    I have just finished the Distributor installation: on the Properties page I find:

    1) Transaction retention

    2) History retention

    Please could you give some suggestions on how how to configure them, keeping in mind problems/constraints and ensuring the replica is well performed without problems.

    Many thanks


    • 編集済み fasttrack 2012年2月17日 9:00
    2012年2月17日 8:55

回答

  • Stick with the defaults.

    Transaction retention controls how long the commands will be stored in the distribution database after they have been applied on the subscriber.

    History retention controls the lenght the history of your replication sessions (the view details dialog in replication monitor) hangs around for.

    I normally keep long histories in case I have to go back in time and figure out what happened when.

    Some people keep the transaction retention higher as it is easy to recover from failed subscribers by having replication catch up after a database backup restore.

    Keeping transaction retention may mean a large distribution database.


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    • 回答の候補に設定 Peja Tao 2012年2月20日 5:43
    • 回答としてマーク fasttrack 2012年2月20日 10:34
    2012年2月17日 16:30
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