glusterfs.git/xlators/cluster/dht/src, branch v3.4.2

cluster/dht: Ignore ENOENT errors for unlink of linkfiles

2013-12-24T11:32:23+00:00

Backport of http://review.gluster.org/4971

If unlink of linkfile returns ENOENT, do not fail unlink.
Proceed with unlinking of cached file.

Change-Id: If7cec92b40c39d68dd9c3606c6c2c3a6bd67d27b
BUG: 966848
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6586
Reviewed-by: Harshavardhana 
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

Revert "core: fix errno for non-existent GFID"

2013-12-24T11:31:53+00:00

This reverts commit 837422858c2e4ab447879a4141361fd382645406

Change-Id: I0909f26ce088454bb14b3694b489c672286a4ae6
Reviewed-on: http://review.gluster.org/6575
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/dht: interim fix for reverting 837422858c

2013-12-24T09:53:48+00:00

Change-Id: I74818a03f7c5d7891561515af2fa35ea3775255c
BUG: 1032894
Signed-off-by: Vijay Bellur 
Reviewed-on: http://review.gluster.org/6582
Tested-by: Gluster Build System

cluster/dht: Ignore decommissioned subvol in overlap optimization

2013-12-17T07:15:06+00:00

Change-Id: Ib727948c6e21b19fd509f258ff0aea1c5d1a84d1
BUG: 966845
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/5056
Reviewed-by: Amar Tumballi 
Reviewed-by: Jeff Darcy 
Tested-by: Gluster Build System 
Reviewed-on: http://review.gluster.org/6517
Reviewed-by: Shishir Gowda 
Reviewed-by: Vijay Bellur

cluster/dht: Fix anomaly check

2013-12-14T14:25:21+00:00

We were wrongly detecting holes/overlaps for already accounted
errors. Additionally, sort should also handle zero'ed out layout

Change-Id: Ic3d13e1d735b914f9acc01fe919bc90656baea48
BUG: 1003851
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/5762
Tested-by: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6469
Reviewed-by: Vijay Bellur

cluster/dht: Del GF_READDIR_SKIP_DIRS key from dict for first_up

2013-12-14T13:28:32+00:00

Currently, we sent GF_READDIR_SKIP_DIRS for all subvolumes if
first_subvol != first_up_subvolume.

Also first_up_subvolume can change with-in the life of a call and
cbk. Saving the first_up_subvol in dht_local for checks.

Back porting fix http://review.gluster.org/5577

BUG: 996474
Change-Id: I67b5bbe781e12812557b569b7d0a0beba4224159
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/6468
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/dht: Do migration inprog/complete check only if ENOENT

2013-12-14T07:37:13+00:00

Additionally, update op_errno to the lasted failure. If failures
found in complete_check, error returned would be EUCLEAN instead
of the right failure (in this case ENOENT)

Change-Id: Ib813867f4b817af651627b9ea07b0b09fa2b26ce
BUG: 966852
Original-author: shishir gowda 
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6495
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur

cluster/dht: set layout in inode ctx even if linkfile fails

2013-12-10T17:44:58+00:00

Creating linkfile could have failed, but we dont care about linkfile
for setting layout in the inode ctx (could be EEXIST etc.)

So ignore @inode in cbk and pick it up from local->loc.inode

Backporting  http://review.gluster.org/6319
BUG: 1032859

Change-Id: Ic95e303a4c060900d041820d4faa68d1c4685b6a
Original-author: Anand Avati 
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/6470
Tested-by: Gluster Build System 
Reviewed-by: Anand Avati

distribute: Rebalance should provide even disk space distribution

2013-12-10T12:14:57+00:00

Earlier disk space check had an issue which didn't
provide the needed functionality to avoid migration
when the destination had lesser available space,
scenario we need to avoid is stated below :

During rebalance `migrate-data` - Destination subvol experiences
a `reduction` in 'blocks' of free space, at the same time source
subvol gains certain 'blocks' of free space. A valid check is
necessary here to avoid errorneous move to destination where
the space could be scantily available.

This patch provides a proper fix in place by subtracting
necessary file blocks from destination and adding those blocks
to source.

backporting fix http://review.gluster.org/5961

BUG: 982919
Original-author: Harshavardhana 
Signed-off-by: shishir gowda 

Change-Id: If5808eaa89e66d7bcaeee7268fe3fe5b1b56f51d
Signed-off-by: shishir gowda 
Reviewed-on: http://review.gluster.org/6461
Reviewed-by: Harshavardhana 
Reviewed-by: Vijay Bellur 
Tested-by: Gluster Build System

cluster/dht: handle NULL check before strlen/strcmp in fgetxattr

2013-12-03T10:23:18+00:00

@key can legally be NULL. Handle that case without crashing.

Change-Id: Iaae293caa7eeb24afc9cd2580799173e2ce00911
BUG: 1036879
Signed-off-by: Anand Avati 
Reviewed-on: http://review.gluster.org/6402
Tested-by: Gluster Build System 
Reviewed-by: Vijay Bellur