Why gluster logs are filling with metadata self-heal messages

Solution Verified - Updated -

Issue

  • Due to a bug with bitrot lookup, trusted.bit-rot.version xattrs are present on files.
  • Since this xattr value will be different in each brick of the replica, afr starts triggering spurious metadata heals.
  • This issue can be results of below two scenario :

    1) bitrot was enabled and then disabled (or)

    2) if this was an upgraded setup from 3.2. (In 3.2, the trusted.bit-rot.version xattr would apparently be set even if bitrot was not enabled).

  • Issue is being tracked through bug 1519740, which is set to released with Red Hat gluster storage 3.4.

Environment

  • Red Hat Gluster Storage 3.X
  • NFS-ganesha

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