glusterfs.git/xlators/cluster/dht/src, branch v3.12.11

cluster/dht: Fix dht_rename lock order

2018-05-09T05:04:20+00:00

Fixed dht_order_rename_lock to use the same inodelk ordering
as that of the dht selfheal locks (dictionary order of
lock subvolumes).

Change-Id: Ia3f8353b33ea2fd3bc1ba7e8e777dda6c1d33e0d
BUG: 1570475
Signed-off-by: N Balachandran

cluster/dht: Handle file migrations when brick down

2018-04-18T13:24:30+00:00

The decision as to which node would migrate a file
was based on the gfid of the file. Files were divided
among the nodes for the replica/disperse set. However,
if a brick was down when rebalance started, the nodeuuids
would be saved as NULL and a set of files would not be migrated.

Now, if the nodeuuid is NULL, the first non-null entry in
the set is the node responsible for migrating the file.

Change-Id: I72554c107792c7d534e0f25640654b6f8417d373
fixes: bz#1566820
Signed-off-by: N Balachandran 

(cherry picked from commit 1f0765242a689980265c472646c64473a92d94c0)

Change-Id: Id1a6e847b0191b6a40707bea789a2a35ea3d9f68

cluster/dht: Wind open to all subvols

2018-04-18T13:23:51+00:00

dht_opendir should wind the open to all subvols
whether or not local->subvols is set. This is
because dht_readdirp winds the calls to all subvols.

Change-Id: I67a96b06dad14a08967c3721301e88555aa01017
updates: bz#1566820
Signed-off-by: N Balachandran 
(cherry picked from commit c4251edec654b4e0127577e004923d9729bc323d)

cluster/dht: Skipped files are not treated as errors

2018-04-06T12:50:35+00:00

For skipped files, use a return value of 1 to prevent
error messages being logged.

> Change-Id: I18de31ac1a64d4460e88dea7826c3ba03c895861
> BUG: 1553598
> Signed-off-by: N Balachandran 

Change-Id: I18de31ac1a64d4460e88dea7826c3ba03c895861
BUG: 1555161
Signed-off-by: N Balachandran

cluster/dht: ENOSPC will not fail rebalance

2018-04-02T03:42:11+00:00

ENOSPC returned by a file migration is no longer
considered a rebalance failure.

Change-Id: I21cf3a8acdc827bc478e138d6cb5db649d53a28c
BUG: 1555161
Signed-off-by: N Balachandran

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

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