logger.debug('NFS unmount complete.')
logger.debug('Saving synclog to disk.')
try:
tsumufs.syncLog.flushToDisk()
except Exception, e:
logger.debug('Unable to save synclog -- caught an exception.')
tsumufs.syslogCurrentException()
else:
logger.debug('Synclog saved.')
logger.debug('SyncThread shutdown complete.')
except Exception, e:
tsumufs.syslogCurrentException()
@extendedattribute('root', 'tsumufs.pause-sync')
def xattr_pauseSync(type_, path, value=None):
try:
if value != None:
if value == '0':
tsumufs.syncPause.clear()
elif value == '1':
tsumufs.syncPause.set()
else:
return -errno.EOPNOTSUPP
return
if tsumufs.syncPause.isSet():
def run(self):
try:
while not tsumufs.unmounted.isSet():
logger.debug('TsumuFS not unmounted yet.')
while (not tsumufs.nfsAvailable.isSet()
and not tsumufs.unmounted.isSet()):
logger.debug('NFS unavailable')
if not tsumufs.forceDisconnect.isSet():
self._attemptMount()
tsumufs.unmounted.wait(5)
else:
logger.debug(('...because user forced disconnect. '
'Not attempting mount.'))
time.sleep(5)
while tsumufs.syncPause.isSet():
logger.debug('User requested sync pause. Sleeping.')
time.sleep(5)
while (tsumufs.nfsAvailable.isSet()
and not tsumufs.unmounted.isSet()
and not tsumufs.syncPause.isSet()):
try:
logger.debug('Checking for items to sync.')
(item, change) = tsumufs.syncLog.popChange()
except IndexError:
logger.debug('Nothing to sync. Sleeping.')
time.sleep(5)
continue
logger.debug('Got one: %s' % repr(item))
try:
# Handle the change
logger.debug('Handling change.')
self._handleChange(item, change)
# Mark the change as complete.
logger.debug('Marking change %s as complete.' % repr(item))
try:
tsumufs.syncLog.finishedWithChange(item)
except Exception, e:
exc_info = sys.exc_info()
logger.debug('*** Unhandled exception occurred')
logger.debug('*** Type: %s' % str(exc_info[0]))
logger.debug('*** Value: %s' % str(exc_info[1]))
logger.debug('*** Traceback:')
for line in traceback.extract_tb(exc_info[2]):
logger.debug('*** %s(%d) in %s: %s' % line)
except IOError, e:
logger.debug('Caught an IOError in the middle of handling a change: '
'%s' % str(e))
logger.debug('Disconnecting from NFS.')
tsumufs.nfsAvailable.clear()
tsumufs.nfsMount.unmount()
logger.debug('Not removing change from the synclog, but finishing.')
tsumufs.syncLog.finishedWithChange(item, remove_item=False)
logger.debug('Shutdown requested.')
logger.debug('Unmounting NFS.')
try:
tsumufs.nfsMount.unmount()
except:
logger.debug('Unable to unmount NFS -- caught an exception.')
tsumufs.syslogCurrentException()
else:
logger.debug('NFS unmount complete.')
logger.debug('Saving synclog to disk.')
try:
tsumufs.syncLog.flushToDisk()
except Exception, e:
logger.debug('Unable to save synclog -- caught an exception.')
tsumufs.syslogCurrentException()
def run(self):
try:
while not tsumufs.unmounted.isSet():
self._debug('TsumuFS not unmounted yet.')
while (not self.replicationCheckOk()
and not tsumufs.unmounted.isSet()):
self._debug('Replication from server unavailable')
time.sleep(5)
while (not tsumufs.fsMount.fsMountCheckOK()
and not tsumufs.unmounted.isSet()):
self._debug('FS unavailable')
if not tsumufs.forceDisconnect.isSet():
self._debug('Trying to mount fs')
self._attemptMount()
time.sleep(5)
else:
self._debug(('...because user forced disconnect. '
'Not attempting mount.'))
time.sleep(5)
while (tsumufs.syncPause.isSet()
and not tsumufs.unmounted.isSet()):
self._debug('User requested sync pause. Sleeping.')
time.sleep(5)
while (tsumufs.fsMount.fsMountCheckOK()
and not tsumufs.unmounted.isSet()
and not tsumufs.syncPause.isSet()):
self._debug('Checking for items to sync.')
for (item, change) in tsumufs.syncLog.popChanges():
self._debug('Got one: %s' % repr(item))
if tsumufs.syncPause.isSet():
self._debug('... but user requested sync pause.')
tsumufs.syncLog.finishedWithChange(item, remove_item=False)
break
try:
tsumufs.syncWork.set()
try:
# Handle the change
self._debug('Handling change.')
self._handleChange(item, change)
# Mark the change as complete.
self._debug('Marking change %s as complete.' % repr(item))
tsumufs.syncLog.finishedWithChange(item)
tsumufs.syncWork.clear()
except Exception, e:
exc_info = sys.exc_info()
self._debug('*** Unhandled exception occurred')
self._debug('*** Type: %s' % str(exc_info[0]))
self._debug('*** Value: %s' % str(exc_info[1]))
self._debug('*** Traceback:')
for line in traceback.extract_tb(exc_info[2]):
self._debug('*** %s(%d) in %s: %s' % line)
raise e
except Exception, e:
self._debug('Caught an IOError in the middle of handling a change: '
'%s' % str(e))
self._debug('Disconnecting from fs.')
tsumufs.fsAvailable.clear()
tsumufs.fsMount.unmount()
self._debug('Not removing change from the synclog, but finishing.')
tsumufs.syncLog.finishedWithChange(item, remove_item=False)
tsumufs.syncWork.clear()
break
self._debug('Shutdown requested.')
self._debug('Unmounting fs.')
try:
tsumufs.fsMount.unmount()
except:
self._debug('Unable to unmount fs -- caught an exception.')
tsumufs.syslogCurrentException()
else:
self._debug('fs unmount complete.')
self._debug('Syncing changes to disk.')
try:
tsumufs.syncLog.checkpoint()
except Exception, e:
self._debug('Unable to commit changes -- caught an exception.')
tsumufs.syslogCurrentException()
