Initial replication is more than minimal quorum


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whynot
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Message 8155 - Posted 5 Nov 2011 19:46:25 UTC

    $Subject. Among those who do BinSys each fourth is going to waste time. Any reasons, please.

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    Profile Attila Csaba Marosi
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    Message 8159 - Posted 8 Nov 2011 8:13:33 UTC - in response to Message 8155.

      Hello!

      Higher initial replication ensures that results are returned faster (if a result is "stuck" the work unit will not be stuck), so nothing is "wasted".

      This was not intentional, we upgraded the job submission libraries ("DC-API") and there was a bug introduced in the new version which resulted in NTargetResults = MinQuorum + 1. It has been fixed shortly afterwards, but some work units were created with incorrect parameters.

      Attila
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      whynot
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      Message 8160 - Posted 12 Nov 2011 15:52:12 UTC

        It's time that's wasted. Although, pleased to hear it has been fixed.

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        robert.mouris
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        Message 8161 - Posted 12 Nov 2011 16:52:01 UTC

          I just got 16 WUs. They were created yesterday and all of them have an initial replication of 4/3. I expected 2/2. A few tasks sent to other people crashed shortly after processing start and the system immediately created replacement WUs.
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          robert.mouris
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          Message 8180 - Posted 21 Dec 2011 8:21:22 UTC

            Last modified: 21 Dec 2011 8:22:01 UTC

            Good news! The BinSys work units created today are issued without a fourth replication.
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