glusterfs.git/tests/basic/tier/fops-during-migration.t, branch v3.7.9

cluster/tier: readdirp to cold tier only

2015-11-24T12:13:53+00:00

It is possible a file would get migrated in the middle
of a readdir operation. If there are four subvolumes A,B,C,D,
and if readdir reads them in order and reaches subvol B,
then, if a file is moved from D to A, it will not be included
in the readdir output.

This phenonema has pre-existed in DHT migration but is more
apparent in tiering.

When a file is moved off the hashed subvolume a T file is created.
For tiering, we will make the cold subvolume the hashed subvolume.
This will ensure the creation of a T file. Readdir will not skip T
files in the tier translator.

Making the cold subvolume the hashed subvolume ensures the T
files created on promotions or creates will be less likely to
fill the volume.

Creates still put the data on the hot subvolume.

This is a backport of 12530

> Change-Id: Ifde557d3d0e94a4570ca9f115adee3db2ee75407
> BUG:  1281598
> Signed-off-by: Dan Lambright 
> Reviewed-on: http://review.gluster.org/12530
> Tested-by: Gluster Build System 
> Tested-by: NetBSD Build System 
> Reviewed-by: N Balachandran 
> Reviewed-by: Raghavendra G 
Signed-off-by: Dan Lambright 

Signed-off-by: Dan Lambright 

Conflicts:
	xlators/cluster/dht/src/tier.c

Change-Id: I5720a4cd04ae5088e5d7d23439b0f90d6bbc6265
BUG: 1283923
Reviewed-on: http://review.gluster.org/12722
Tested-by: NetBSD Build System 
Reviewed-by: N Balachandran 
Tested-by: Gluster Build System 
Reviewed-by: Dan Lambright 
Tested-by: Dan Lambright

cluster/tier make cache mode default for tiered volumes

2015-11-19T16:48:33+00:00

The default mode for tiered volumes must be cache. The current
test mode was for engineering and should ordinarily not be used
by customers.

This is a back port of 12581 

> Change-Id: I20583f54a9269ce75daade645be18ab8575b0b9b
> BUG: 1282076
> Signed-off-by: Dan Lambright 
> Reviewed-on: http://review.gluster.org/12581
> Tested-by: Gluster Build System 
> Reviewed-by: mohammed rafi  kc 
Signed-off-by: Dan Lambright 

Change-Id: Ib2629d6d3e9b9374fddb5bc21cf068a1bcd96b9d
BUG: 1283288
Reviewed-on: http://review.gluster.org/12647
Tested-by: Gluster Build System 
Reviewed-by: Dan Lambright 
Tested-by: Dan Lambright

tests/tier: Move common functions to tier.rc

2015-11-03T18:44:29+00:00

Move common functions in tier .t files to tier.rc

> Change-Id: Ibc312d987be9d93e7cc7fc47d0bf598bb1c944c2
> Signed-off-by: N Balachandran 
> Reviewed-on: http://review.gluster.org/12404
> Tested-by: Gluster Build System 
> Reviewed-by: Dan Lambright 
> Tested-by: Dan Lambright 
(cherry picked from commit 594a03b030577bf0ed6960199e920cc5fa7e7afc)

Change-Id: Ie13bb86f85575164e62120e29bbbedb7789b0af5
BUG: 1277590
Signed-off-by: N Balachandran 
Reviewed-on: http://review.gluster.org/12497
Tested-by: Gluster Build System 
Reviewed-by: Dan Lambright 
Tested-by: Dan Lambright

cluster/tier: Handle FOPs on files being migrated

2015-09-25T12:36:12+00:00

Determine which DHT level is responsible for
handling fops on a file undergoing migration based
on the name of the the linkto xattr set on the file
 being migrated and process accordingly.

Change-Id: I82772e39314d4fe7f2ba0dcf22de0c6a374ee139
BUG: 1265892
Signed-off-by: N Balachandran 
> Reviewed-on: http://review.gluster.org/12090
> Tested-by: NetBSD Build System 
> Tested-by: Gluster Build System 
> Reviewed-by: Raghavendra G 
(cherry picked from commit 470869a954c17f32a3ba43ccda7442f82c0da6b2)
Reviewed-on: http://review.gluster.org/12224
Tested-by: Gluster Build System 
Tested-by: NetBSD Build System 
Reviewed-by: Dan Lambright 
Tested-by: Dan Lambright