parallelvirtualcluster
/
pvc
1
0
Fork 0
Code Issues 11 Pull Requests Projects Releases 109 Wiki Activity

Free RBD locks when fencing node

This commit is contained in:
Joshua Boniface 2019-07-09 10:53:46 -04:00
parent ffc2a6ee1b
commit 7f828a27a5
1 changed files with 21 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
node-daemon/pvcd/fencing.py
View File

@ -80,9 +80,28 @@ def migrateFromFencedNode(zk_conn, node_name, logger):
target_node = findTargetHypervisor(zk_conn, 'mem', dom_uuid)
logger.out('Flushing RBD locks for VM "{}"'.format(dom_uuid), state='i')
# TO BE IMPLEMENTED once RBD pools are integrated properly
# Get the list of RBD images
rbd_list = zkhandler.readdata(zk_conn, '/domains/{}/rbdlist'.format(dom_uuid)).split(',')
for rbd in rbd_list:
# Check if a lock exists
retcode, stdout, stderr = common.run_os_command('rbd lock list --format json {}'.format(rbd))
if not retcode:
logger.out('Failed to obtain lock list for volume "{}"'.format(rbd), state='e')
continue
lock_list = stdout
# If there's at least one lock
if lock_list:
# Loop through the locks
for lock, detail in lock_list.items():
# Free the lock
retcode, stdout, stderr = common.run_os_command('rbd lock remove {} "{}" "{}"'.format(rbd, lock, detail['locker']))
if not retcode:
logger.out('Failed to free RBD lock "{}" on volume "{}"'.format(lock, rbd), state='e')
continue
logger.out('Freed RBD lock "{}" on volume "{}"'.format(lock, rbd), state='o')
logger.out('Moving VM "{}" to node "{}"'.format(dom_uuid, target_node), state='i')
logger.out('Migrating VM "{}" to node "{}"'.format(dom_uuid, target_node), state='i')
zkhandler.writedata(zk_conn, {
'/domains/{}/state'.format(dom_uuid): 'start',
'/domains/{}/node'.format(dom_uuid): target_node,