def multi(session, args):
"""Perform several actions in one call (to save on round trips)"""
util.SMlog("on-slave.multi: %s" % args)
vgName = args["vgName"]
lvmCache = LVMCache(vgName)
i = 1
while True:
action = args.get("action%d" % i)
if not action:
break
util.SMlog("on-slave.action %d: %s" % (i, action))
if action == "activate":
try:
lvmCache.activate(args["ns%d" % i], args["uuid%d" % i],
args["lvName%d" % i], False)
except util.CommandException:
util.SMlog("on-slave.activate failed")
raise
elif action == "deactivate":
try:
lvmCache.deactivate(args["ns%d" % i], args["uuid%d" % i],
args["lvName%d" % i], False)
except util.SMException:
util.SMlog("on-slave.deactivate failed")
raise
elif action == "deactivateNoRefcount":
try:
lvmCache.deactivateNoRefcount(args["lvName%d" % i])
except util.SMException:
util.SMlog("on-slave.deactivateNoRefcount failed")
raise
elif action == "refresh":
try:
lvmCache.activateNoRefcount(args["lvName%d" % i], True)
except util.CommandException:
util.SMlog("on-slave.refresh failed")
raise
elif action == "cleanupLockAndRefcount":
from refcounter import RefCounter
lock.Lock.cleanup(args["uuid%d" % i], args["ns%d" % i])
RefCounter.reset(args["uuid%d" % i], args["ns%d" % i])
else:
raise util.SMException("unrecognized action: %s" % action)
i += 1
return str(True)
vdi = vdiInfo[vdi.parentUuid]
vdi.refcount += 1
pathsNotInUse = []
for uuid, vdi in vdiInfo.iteritems():
if vdi.hidden:
util.SMlog("Setting refcount for %s to %d" % (uuid, vdi.refcount))
RefCounter.set(uuid, vdi.refcount, 0, ns)
if vdi.refcount == 0 and vdi.lvActive:
path = os.path.join("/dev", lvmCache.vgName, vdi.lvName)
pathsNotInUse.append(path)
return pathsNotInUse
if __name__ == "__main__":
# used by the master changeover script
from lvmcache import LVMCache
try:
cmd = sys.argv[1]
srUuid = sys.argv[2]
if cmd == "fixrefcounts":
vgName = VG_PREFIX + srUuid
lvmCache = LVMCache(vgName)
setInnerNodeRefcounts(lvmCache, srUuid)
else:
util.SMlog("Invalid usage")
print "Usage: %s fixrefcounts <sr_uuid>" % sys.argv[0]
except:
util.logException("setInnerNodeRefcounts")