glusterfs.git/xlators/cluster, branch v3.8rc1

cluster/afr: Don't let NFS cache stat after writes

2016-05-14T14:30:21+00:00

Problem:
Afr does post-ops after write but the stat buffer it unwinds is at the
time of write, so if nfs client caches this, it will see different
ctime when it does stat on it after post-op is done. From NFS client's
perspective it thinks the file is changed. Tar which depends on this
to be correct keeps giving 'file changed as we read it' warning.
If Afr instead has to choose to unwind after post-op, eager-lock,
delayed-post-op will have to be disabled which will lead to bad
performance for all write usecases.

Fix:
Don't let client cache stat after write.

 >Change-Id: Ic6062acc6e5cdd97a9c83c56bd529ec83cee8a23
 >BUG: 1302948
 >Signed-off-by: Pranith Kumar K 
 >Signed-off-by: Anuradha Talur 
 >Reviewed-on: http://review.gluster.org/13785
 >Smoke: Gluster Build System 
 >NetBSD-regression: NetBSD Build System 
 >CentOS-regression: Gluster Build System 
 >Reviewed-by: Niels de Vos 

BUG: 1335285
Change-Id: Ibef4fc80496d12acd15db57713af2e3a1c9109a7
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/14300
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Ravishankar N 
Reviewed-by: Niels de Vos

cluster/afr: Do heals with shd pid

2016-05-14T14:14:37+00:00

Multi-threaded healing doesn't create synctask with shd pid, this
leads to healing problems when quota exceeds.

 >BUG: 1332994
 >Change-Id: I80f57c1923756f3298730b8820498127024e1209
 >Signed-off-by: Pranith Kumar K 
 >Reviewed-on: http://review.gluster.org/14211
 >Smoke: Gluster Build System 
 >NetBSD-regression: NetBSD Build System 
 >CentOS-regression: Gluster Build System 
 >Reviewed-by: Ravishankar N 

BUG: 1335283
Change-Id: If59d8f88d8f4a3ca6a3b6e1c9dfd594dd93f542b
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/14298
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Ravishankar N 
CentOS-regression: Gluster Build System 
Reviewed-by: Niels de Vos

cluster/afr: Handle non-zero source in heal-info decision

2016-05-14T14:12:38+00:00

        Backport of http://review.gluster.org/14302

Problem:
Spurious entries are reported in heal info when the mount is on second/third
brick of the replica pair because local-child is given preference in selecting
source. The code is supposed to suggest the file needs heal if the (source < 0)
(failure code path), but instead it is written as if any non-zero value
is considered failure.

Fix:
Treat +ve source as success case

BUG: 1335433
Change-Id: Iede983b6560622964e91306405587da3f1de5748
Signed-off-by: Pranith Kumar K 
Reviewed-on: http://review.gluster.org/14303
Reviewed-by: Krutika Dhananjay 
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Ravishankar N 
Reviewed-by: Anuradha Talur 
Reviewed-by: Niels de Vos

tier/detach : During detach check if background fixlayout is done

2016-05-06T20:11:38+00:00

During detach check if background fixlayout is done, if not done ignore
the case and continue detach.

Backport of http://review.gluster.org/14147

> Change-Id: I5d5cfc0e73d0eb217fdeab54c432dc4af8bc598d
> BUG: 1332136
> Signed-off-by: Joseph Fernandes 
> Reviewed-on: http://review.gluster.org/14147
> Smoke: Gluster Build System 
> NetBSD-regression: NetBSD Build System 
> CentOS-regression: Gluster Build System 
> Reviewed-by: N Balachandran 
> Reviewed-by: Dan Lambright 
> Signed-off-by: Joseph Fernandes 

Change-Id: I16f0320a2c07ac1d137bd4f27697722049df803c
BUG: 1333803
Signed-off-by: Joseph Fernandes 
Reviewed-on: http://review.gluster.org/14241
Smoke: Gluster Build System 
Tested-by: Joseph Fernandes
NetBSD-regression: NetBSD Build System 
Reviewed-by: Niels de Vos 
CentOS-regression: Gluster Build System

cluster/ec: Fix issues with eager locking

2016-05-06T14:31:44+00:00

Due to a race in timer cancellation, in some cases it was possible
to unlock the lock while another concurrent fop that needed it
continues execution as if it were not released.

This patch also fixes an issue that caused a lock to not be released
if an error was found while preparing ec_update_size_version().

> Change-Id: I1344a3f5ecfc333f05a09e62653838264c9c26b1
> BUG: 1331254
> Signed-off-by: Xavier Hernandez 
> Reviewed-on: http://review.gluster.org/14112
> Smoke: Gluster Build System 
> CentOS-regression: Gluster Build System 
> Reviewed-by: Chen Chen 
> NetBSD-regression: NetBSD Build System 

Change-Id: I9ccd585a9b9952b6787cfca6720bc59b9c8ddab9
BUG: 1332845
Signed-off-by: Xavier Hernandez 
Reviewed-on: http://review.gluster.org/14206
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Niels de Vos

cluster/dht: Perform NULL check on xdata before dict_get()

2016-05-06T14:15:02+00:00

        Backport of: http://review.gluster.org/14212

.. to prevent unnecessary logs from gf_msg_callingfn()


Change-Id: Ic2f21532f09af3ab7d36ce5f20c561fff5208fbb
BUG: 1333244
Signed-off-by: Krutika Dhananjay 
Reviewed-on: http://review.gluster.org/14218
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri 
Reviewed-by: Niels de Vos

dht/rebalance: add lock migration fop to dht_migrate_file

2016-05-02T01:05:14+00:00

Change-Id: Id0e7400c8ae950c90d42a3ddf8b558a14959a1f8
BUG: 1326085
Signed-off-by: Susant Palai 
Reviewed-on: http://review.gluster.org/14074
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System

cluster/dht: handle EREMOTE in dht lk/flush

2016-05-02T01:05:08+00:00

With lock-migration, we need to send requests to destination
brick post migration. Once, the source brick marks the lock
structure to be already migrated, the requests will be redirected
to destination brick by dht_lk2/flush2.

Change-Id: I50b14011c5ab68c34826fb7ba7f8c8d42a68ad97
BUG: 1326085
Signed-off-by: Susant Palai 
Reviewed-on: http://review.gluster.org/13493
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System

glusterd: volume set changes for lock migration

2016-05-02T01:05:03+00:00

Change-Id: I48c6f9cdda47503615ba65882acd5eedf0a70c89
BUG: 1326085
Signed-off-by: Susant Palai 
Reviewed-on: http://review.gluster.org/14024
Smoke: Gluster Build System 
Reviewed-by: Niels de Vos 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System

tier/migrator: Fetch the next query file for the next cycle

2016-04-30T14:30:49+00:00

Problem: When we spawn promote and demote thread, query files
are build. And only query file with index 0 is picked for migration
as the first query file. This may not be suitable for scenarios,
where the file in the query are too big to move in the first cycle,
as a result file in the other query files always get missed. We need to
shuffle so that other query files also get a chance.

Fix: Remember the previous first query file and shift it by one index,
before the migration starts.

Change-Id: I704947bcf4bab6b20b1179a6d9ae4a15a3d51bd9
BUG: 1330353
Signed-off-by: Joseph Fernandes 
Reviewed-on: http://review.gluster.org/14068
Tested-by: Joseph Fernandes
Smoke: Gluster Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Dan Lambright 
Tested-by: Dan Lambright 
NetBSD-regression: NetBSD Build System