glusterd: fix brick start race

Problem:

Another race where glusterd was restarted glusterd_brick_start () is called
multiple times due to friend handshaking and in one instance when one of the
brick was attempted to be attached to the existing brick process,
send_attach_req failed as the first brick itself was still not up and then we
did a synlock_unlock () followed by a sleep of 1 sec, before the same thread
woke up, another thread tried to start the same brick process and then it
assumed that it has to start a fresh brick process.

Solution:

1. If brick is in starting phase (brickinfo->status ==
GF_BRICK_STARTING), no need for a reattempt to
start the brick.
2. While initiating attach_req set brickinfo->status to
GF_BRICK_STARTING

Change-Id: Ib007b6199ec36fdab4214a1d37f99d7f65ef64da
BUG: 1465559
Signed-off-by: Atin Mukherjee <amukherj@redhat.com>
Reviewed-on: https://review.gluster.org/17840
Reviewed-by: Amar Tumballi <amarts@redhat.com>
Smoke: Gluster Build System <jenkins@build.gluster.org>
CentOS-regression: Gluster Build System <jenkins@build.gluster.org>
Reviewed-by: Jeff Darcy <jeff@pl.atyp.us>

0 files changed, 0 insertions, 0 deletions