if zfsproc.returncode:
syslog.syslog(syslog.LOG_ALERT,
'Could not determine last available snapshot for dataset %s: %s'
% (localfs, error, ))
MNTLOCK.unlock()
continue
if output != '':
snapshots_list = output.split('\n')
found_latest = False
for snapshot_item in snapshots_list:
if snapshot_item != '':
snapshot, state = snapshot_item.split('\t')
if found_latest:
# assert (known_latest_snapshot != '') because found_latest
if state != '-':
system('/sbin/zfs set metanas:state=NEW %s' % (known_latest_snapshot))
system('/sbin/zfs set metanas:state=LATEST %s' % (snapshot))
wanted_list.insert(0, known_latest_snapshot)
syslog.syslog(syslog.LOG_DEBUG, "Snapshot %s added to wanted list (was LATEST)" % (snapshot))
known_latest_snapshot = snapshot
syslog.syslog(syslog.LOG_ALERT, "Snapshot %s became latest snapshot" % (snapshot))
else:
syslog.syslog(syslog.LOG_DEBUG, "Snapshot: %s State: %s" % (snapshot, state))
if state == 'LATEST' and not resetonce:
found_latest = True
known_latest_snapshot = snapshot
syslog.syslog(syslog.LOG_DEBUG, "Snapshot %s is the recorded latest snapshot" % (snapshot))
elif state == 'NEW' or resetonce:
wanted_list.insert(0, snapshot)
syslog.syslog(syslog.LOG_DEBUG, "Snapshot %s added to wanted list" % (snapshot))
elif state.startswith('INPROGRESS'):
recursive = False
for task in tasklist:
if task.task_recursive == True:
recursive = True
if recursive == True:
rflag = ' -r'
else:
rflag = ''
snapname = '%s@auto-%s-%s' % (fs, snaptime_str, expire)
# If there is associated replication task, mark the snapshots as 'NEW'.
if Replication.objects.filter(repl_filesystem = fs).count() > 0:
MNTLOCK.lock()
snapcmd = '/sbin/zfs snapshot%s -o metanas:state=NEW %s' % (rflag, snapname)
system(snapcmd)
MNTLOCK.unlock()
else:
snapcmd = '/sbin/zfs snapshot%s %s' % (rflag, snapname)
system(snapcmd)
MNTLOCK.lock()
for snapshot in snapshots_pending_delete:
zfsproc = pipeopen('/sbin/zfs get -H metanas:state %s' % (snapshot))
output = zfsproc.communicate()[0]
if output != '':
fsname, attrname, value, source = output.split('\n')[0].split('\t')
if value == '-':
snapcmd = '/sbin/zfs destroy %s' % (snapshot)
system(snapcmd)
(
localfs,
error,
))
MNTLOCK.unlock()
continue
if output != '':
snapshots_list = output.split('\n')
found_latest = False
for snapshot_item in snapshots_list:
if snapshot_item != '':
snapshot, state = snapshot_item.split('\t')
if found_latest:
# assert (known_latest_snapshot != '') because found_latest
if state != '-':
system('/sbin/zfs set metanas:state=NEW %s' %
(known_latest_snapshot))
system('/sbin/zfs set metanas:state=LATEST %s' %
(snapshot))
wanted_list.insert(0, known_latest_snapshot)
syslog.syslog(
syslog.LOG_DEBUG,
"Snapshot %s added to wanted list (was LATEST)" %
(snapshot))
known_latest_snapshot = snapshot
syslog.syslog(
syslog.LOG_ALERT,
"Snapshot %s became latest snapshot" % (snapshot))
else:
syslog.syslog(syslog.LOG_DEBUG,
"Snapshot: %s State: %s" % (snapshot, state))
if state == 'LATEST' and not resetonce:
for task in tasklist:
if task.task_recursive == True:
recursive = True
if recursive == True:
rflag = ' -r'
else:
rflag = ''
snapname = '%s@auto-%s-%s' % (fs, snaptime_str, expire)
# If there is associated replication task, mark the snapshots as 'NEW'.
if Replication.objects.filter(repl_filesystem=fs).count() > 0:
MNTLOCK.lock()
snapcmd = '/sbin/zfs snapshot%s -o metanas:state=NEW %s' % (rflag,
snapname)
system(snapcmd)
MNTLOCK.unlock()
else:
snapcmd = '/sbin/zfs snapshot%s %s' % (rflag, snapname)
system(snapcmd)
MNTLOCK.lock()
for snapshot in snapshots_pending_delete:
zfsproc = pipeopen('/sbin/zfs get -H metanas:state %s' % (snapshot))
output = zfsproc.communicate()[0]
if output != '':
fsname, attrname, value, source = output.split('\n')[0].split('\t')
if value == '-':
snapcmd = '/sbin/zfs destroy %s' % (snapshot)
system(snapcmd)