[Bugs] [Bug 1369638] New: DHT stale layout issue will be seen often with md-cache prolonged cache of lookups

[bugzilla at redhat.com]

https://bugzilla.redhat.com/show_bug.cgi?id=1369638

            Bug ID: 1369638
           Summary: DHT stale layout issue will be seen often with
                    md-cache prolonged cache of lookups
           Product: GlusterFS
           Version: mainline
         Component: md-cache
          Assignee: bugs at gluster.org
          Reporter: pgurusid at redhat.com
                CC: bugs at gluster.org



Description of problem:
    dht_layout is built as a part of lookup only. The layout can be
    modified by rebalance process. Since every IO fop is preceded
    by a lookup, there are very less issues of stale layout. But
    with enhancements of aggressive caching of stats in md-cache,
    the lookup will reduce and expose the stale layout issue often.


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