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Backporting fix http://review.gluster.org/#/c/4668/
When subvols-per-directory is < available subvols, then there are layouts
which are not populated. This leads to incorrect identification of holes or
overlaps. We need to ignore layouts, which have err == 0, and start == stop.
In the current scenario (start == stop == 0).
Additionally, in layout-merge, treat missing xattrs as err = 0. In case of
missing layouts, anomalies will reset them.
For any other valid subvoles, err != 0 in case of layouts being zeroed out.
Also reverted back dht_selfheal_dir_xattr, which does layout calculation only
on subvols which have errors.
BUG: 921408
Change-Id: I75a8edcb92af5b53b3253c9addd7a812e9242836
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/4800
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
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If holes are encountered, then we do not write these to the dst,
which sometimes causes file size to be lesser than src. Data is not
corrupted, as when non-zero reads are received, we do write that data.
Calling a truncrate to give file size to prevent it from being
truncated to less than src in case the file end has holes.
Thanks to Brian Foster for providing the test case
BUG: 915554
Change-Id: I7e1e0c475118b073c3ebb87e93220c1ec22e8b7d
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/4609
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
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Currently, linkfile creation happens as root.
use uid/gid returned from _cbk (link/rename) to set the correct ownership of
the link files.
Also added test/dht.rc to implement common dht functions
BUG: 884597
Change-Id: I6bc0e04f62d4716fc033681e5678e852a1be7a2f
Signed-off-by: shishir gowda <sgowda@redhat.com>
Reviewed-on: http://review.gluster.org/4607
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Jeff Darcy <jdarcy@redhat.com>
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