glusterfs.git/extras/group-virt.example, branch v3.12.5

extras: Enable stat-prefetch in virt profile

2017-07-10T07:53:36+00:00

In the internal testing that was done, stat-prefetch did help
reduce the number of stats coming from qemu hitting the disk,
and thereby improved performance.

Change-Id: Icf1ce62ecf4e96b97e1946a77b30434157a7786a
BUG: 1468191
Signed-off-by: Krutika Dhananjay 
Reviewed-on: https://review.gluster.org/17713
CentOS-regression: Gluster Build System 
Smoke: Gluster Build System 
Reviewed-by: Amar Tumballi 
Reviewed-by: Pranith Kumar Karampuri

extras: Add more options to group virt

2017-02-17T10:43:58+00:00

Apart from some of the option configurations already listed
in the group-virt.example file, we also recommend that the
users set certain other options added by this patch for
VM use-case. This also helps Gluster-oVirt users in configuring
virt options for new volumes at the click of a button as opposed
to setting them manually through volume-set command.

Change-Id: I8524e8d8a06bbbb0b9247571706e786410013b41
BUG: 1418900
Signed-off-by: Krutika Dhananjay 
Reviewed-on: https://review.gluster.org/16577
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Sahina Bose 
Reviewed-by: Niels de Vos

extras: Include shard and full-data-heal in virt group

2016-12-05T04:44:12+00:00

Change-Id: Iea66cb017bd1ab62da9cd65895fa65fc6896108b
BUG: 1375431
Signed-off-by: Krutika Dhananjay 
Reviewed-on: http://review.gluster.org/15995
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
Reviewed-by: Atin Mukherjee 
CentOS-regression: Gluster Build System 
Reviewed-by: Vijay Bellur

extras: Add namespace for options in group-virt.example

2016-04-09T19:00:30+00:00

Commit 23ccabbeb7 introduced a new key "disperse.eager-lock" which
causes a conflict with key "cluster.eager-lock" when option is used
without the qualifying namespace. group-virt.example which gets
installed as /var/lib/glusterd/ groups/virt contains options without
namespace qualifiers. This patch adds the appropriate namespace to all
options in group-virt.example.

Change-Id: I2c09dd10d44138410d889ddeb805f01c641c6780
BUG: 1314649
Signed-off-by: Vijay Bellur 
Reviewed-on: http://review.gluster.org/13929
Smoke: Gluster Build System 
NetBSD-regression: NetBSD Build System 
CentOS-regression: Gluster Build System 
Reviewed-by: Pranith Kumar Karampuri

group-virt: To minimize 'split-brain' enable quorum under virt profile

2013-11-23T06:40:28+00:00

Quorum as default is necessary when storing virtual machine images. It
would be necessary to enable both server and client quorum

Currently defaulted values are:
----------------
server-quorum-type=server
quorum-type=auto
----------------

Change-Id: Ic2adb5856ce3c2589476e872e988cae6eeb9b25e
BUG: 1032080
Signed-off-by: Harshavardhana 
Reviewed-on: http://review.gluster.org/6340
Reviewed-by: Vijay Bellur 
Tested-by: Gluster Build System

group-virt: Change profile to include remote-dio and exclude posix-aio.

2013-02-05T01:42:05+00:00

remote-dio enables filtering O_DIRECT in the client xlator. This has been
found to be useful for improving performance when there are multiple VMs
talking to an image store.

Aggregated throughput results for a single thread iozone run from multiple VMs
and a single host can be seen below:

-------------------------------------------------
No. of VMs |   remote-dio on  |   remote-dio off |
-------------------------------------------------
       2   |     400 MB/s     |    202 MB/s      |
       4   |     650 MB/s     |    410 MB/s      |
--------------------------------------------------

posix-aio has not been found to improve performance consistently with VM image
workload. Hence not including that in the default virt profile.

Change-Id: I592f68b95a955036f1a985352d2f4950ced1deef
BUG: 907301
Signed-off-by: Vijay Bellur 
Reviewed-on: http://review.gluster.org/4460
Reviewed-by: Anand Avati 
Tested-by: Anand Avati

Added virt group file - template for 'group' set

2012-12-12T00:42:14+00:00

- This sample file contains the set of volume options
  that are associated with volumes that would be used to
  store VMs.

- To enable the set of options present in this file one must
  do the following,
  - # cp extras/group-virt.example /var/lib/glusterd/groups/
    # gluster volume set  group 

Change-Id: I8848d3d222ce114900db885aeef2f20c83ece28c
BUG: 851237
Signed-off-by: Krishnan Parthasarathi 
Reviewed-on: http://review.gluster.org/4232
Reviewed-by: Anand Avati 
Tested-by: Gluster Build System