glusterd: Allow bumping up the cluster op-version

This patch allows a user to bump up the cluster op-version by doing
  # gluster volume set all cluster.op-version <OP-VERSION>

The op-version will be bumped only if
- all the peers in the cluster support it, and
- the new op-version is greater than the current cluster op-version

This set operation will not do any other change other than changing and
saving the cluster op-version in the glusterd.info file. It will NOT,
- change any existing volume
- add the option to the global options list
- fix the cluster op-version to the given version, it can be bumped up
  by other volume set commands.

Change-Id: I084b4fcc45e79dc2ca7b7680d7bb371bb175af39
BUG: 1092592
Signed-off-by: Kaushal M <kaushal@redhat.com>
Reviewed-on: http://review.gluster.org/7603
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com>
Tested-by: Krishnan Parthasarathi <kparthas@redhat.com>

0 files changed, 0 insertions, 0 deletions