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  1. Percona XtraDB Cluster
  2. PXC-1805

LP #1425918: grastate.dat and other percona xtradb cluster files not properly addressed in documentation

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    Details

    • Type: Bug
    • Status: Done
    • Priority: Low
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: Documentation
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      Description

      **Reported in Launchpad by Mario Splivalo last update 09-10-2015 11:39:59

      There is no explanation on what grastate.dat file contain, under what circumstances it is created, is it ever removed, and so on. The documentation on the web (http://www.percona.com/doc/percona-xtradb-cluster/5.5/wsrep-files-index.html) states that the file is there, shows its content, but there is no explanation on what various fields do.

      For instance, seqno: describes the last 'written' sequence number for that particular node. I'm only assuming that -1 means some sort of an error, but I am not 100% clear on what 0 is - is it that the cluster was never written to since the bootstrap, or just since the reboot of that particular unit?

      An explanation/description of those in the PXC manual is, imho, essential.

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              • Assignee:
                krunal.bauskar Krunal Bauskar
                Reporter:
                lpjirasync lpjirasync (Inactive)
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