glusterfs.git/xlators, branch v3.12.7

glusterd: optimize glusterd import volumes code path

2018-03-08T06:44:17+00:00

In case there's a version mismatch detected for one of the volumes
glusterd was ending up with updating all the volumes which is a
overkill.

>mainline patch : https://review.gluster.org/#/c/19358/

Change-Id: I6df792db391ce3a1697cfa9260f7dbc3f59aa62d
BUG: 1543709
Signed-off-by: Atin Mukherjee 
(cherry picked from commit bb34b07fd2ec5e6c3eed4fe0cdf33479dbf5127b)

cluster/afr: Fail open on split-brain

2018-03-08T06:39:57+00:00

Problem:
Append on a file with split-brain succeeds. Open is intercepted by open-behind,
when write comes on the file, open-behind does open+write. Open succeeds
because afr doesn't fail it. Then write succeeds because write-behind
intercepts it. Flush is also intercepted by write-behind, so the application
never gets to know that the write failed.

Fix:
Fail open on split-brain, so that when open-behind does open+write open fails
which leads to write failure. Application will know about this failure.

Change-Id: I4bff1c747c97bb2925d6987f4ced5f1ce75dbc15
BUG: 1544635
Signed-off-by: Pranith Kumar K 
(cherry picked from commit 786343abca3474ff01aa1017210112d97cbc4843)

glusterd/store: handle the case of fsid being set to 0

2018-03-06T08:30:54+00:00

Generally this would happen when a system gets upgraded from an
version which doesn't have fsid details, to a version with fsid
values. Without this change, after upgrade, people would see reduced
'df ' output, causing lot of confusions.

Debugging Credits: Nithya B 

Change-Id: Id718127ddfb69553b32770b25021290bd0e7c49a
BUG: 1517260
Signed-off-by: Amar Tumballi

cluster/dht: Handle single dht child in dht_lookup

2018-03-05T04:53:14+00:00

This patch limits itself to only handling the case
where no file (data or linkto) exists on the subvol.

Additional cases to be handled:
1. A linkto file was found on the only child subvol. This currently
calls dht_lookup_everywhere which eventually deletes it. It can be
deleted directly as it will not be pointing to a valid subvol.
2. Directory lookups - locking might be unnecessary in some cases.

> Change-Id: I940ba34531f2aaee1d36fd9ca45ecfd46be662a4
> BUG: 1546620
> Signed-off-by: N Balachandran 

Change-Id: I940ba34531f2aaee1d36fd9ca45ecfd46be662a4
BUG: 1548270
Signed-off-by: N Balachandran

cluster/dht: Ignore ENODATA from getxattr for posix acls

2018-03-05T04:38:15+00:00

dht_migrate_file no longer prints an error if getxattr for
posix acls fails with ENODATA/ENOATTR.

> Change-Id: Id9ecf6852cb5294c1c154b28d609889ea3420e1c
> BUG: 1546954
> Signed-off-by: N Balachandran 

Change-Id: Id9ecf6852cb5294c1c154b28d609889ea3420e1c
BUG: 1548078
Signed-off-by: N Balachandran

cluster/dht: Fixed a typo

2018-03-05T04:38:03+00:00

Replaced "then" with "than"

> Change-Id: I73090e8c1a639befd7c5458e8d63bd173248bc7d
> BUG: 1547128
> Signed-off-by: N Balachandran 

Change-Id: I73090e8c1a639befd7c5458e8d63bd173248bc7d
BUG: 1547841
Signed-off-by: N Balachandran

protocol/server: Backport patch to reduce duplicate code in server-rpc-fops.c

2018-02-27T10:09:10+00:00

> Signed-off-by: Amar Tumballi 
> (cherry picked from commit a81c0c2b9abdcb8ad73d0a226b53120d84082a09)

BUG: 1549505
Change-Id: Ifad0a88245fa6fdbf4c43d813b47c314d2c50435
Signed-off-by: Mohit Agrawal

glusterd: fix tier-enabled flag op-version check

2018-02-13T05:49:48+00:00

tier-enabled flag in volinfo structure was introduced in 3.10, however
while writing this value to the glusterd store was done with a wrong
op-version check which results into volume checksum failure during upgrades.

>Change-Id: I4330d0c4594eee19cba42e2cdf49a63f106627d4
>BUG: 1544600
>Signed-off-by: Atin Mukherjee 

Change-Id: I4330d0c4594eee19cba42e2cdf49a63f106627d4
BUG: 1544637
Signed-off-by: hari gowtham

cluster/dht: Skip '..' for the volume root dir

2018-02-12T10:12:05+00:00

dht_populate_inode_for_dentry tries to update the layout
for the '..' entry when listing the root of the volume.
This entry does not correspond to an entry in the volume
and therefore does not have a gfid or a layout on disk,
causing layout processing to fail.

> Change-Id: I2b7470e1c5e20d87b5545160697f24d041045140
> BUG: 1537457
> Signed-off-by: N Balachandran 

Change-Id: I2b7470e1c5e20d87b5545160697f24d041045140
BUG: 1539516
Signed-off-by: N Balachandran

cluster/dht: Cleanup on fallocate failure

2018-02-09T08:52:00+00:00

It looks like fallocate leaves a non-empty
file behind in case of some failures. We now
truncate the file to 0 bytes on failure in
__dht_rebalance_create_dst_file.

> Change-Id: Ia4ad7b94bb3624a301fcc87d9e36c4dc751edb59
> BUG: 1541916
> Signed-off-by: N Balachandran 

Change-Id: Ia4ad7b94bb3624a301fcc87d9e36c4dc751edb59
BUG: 1542601
Signed-off-by: N Balachandran