path: root/xlators/cluster/dht
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authorRavishankar N <>2017-01-30 09:54:16 +0530
committerPranith Kumar Karampuri <>2017-02-09 20:37:00 -0500
commit0e03336a9362e5717e561f76b0c543e5a197b31b (patch)
tree28be72abb87f19d28b82c9ac7cec61533a968d05 /xlators/cluster/dht
parent55625293093d485623f3f3d98687cd1e2c594460 (diff)
afr: all children of AFR must be up to resolve s-brain
Problem: The various split-brain resolution policies (favorite-child-policy based, CLI based and mount (get/setfattr) based) attempt to resolve split-brain even when not all bricks of replica are up. This can be a problem when say in a replica 3, the only good copy is down and the other 2 bricks are up and blame each other (i.e. split-brain). We end up healing the file in such a case and allow I/O on it. Fix: A decision on whether the file is in split-brain or not must be taken only if we are able to examine the afr xattrs of *all* bricks of a given replica. Change-Id: Icddb1268b380005799990f5379ef957d84639ef9 BUG: 1417522 Signed-off-by: Ravishankar N <> Reviewed-on: Smoke: Gluster Build System <> NetBSD-regression: NetBSD Build System <> CentOS-regression: Gluster Build System <> Reviewed-by: Pranith Kumar Karampuri <>
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