swift/bin/swift-recon-cron
Florian Hines f9d14971c2 Don't report async pendings on exception
If we encounter an exception trying to gather async pendings 'async'
doesn't exist and the cronjob ends up erroring out and leaving behind a
stale lock file.

Change-Id: I70a6d3f00bd2c9ce742e6d16af93804280707040
2014-01-04 00:19:22 -06:00

77 lines
2.5 KiB
Python
Executable File

#!/usr/bin/env python
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
# implied.
# See the License for the specific language governing permissions and
# limitations under the License.
"""
swift-recon-cron.py
"""
import os
import sys
from ConfigParser import ConfigParser
from gettext import gettext as _
from swift.common.utils import get_logger, dump_recon_cache
def get_async_count(device_dir, logger):
async_count = 0
for i in os.listdir(device_dir):
asyncdir = os.path.join(device_dir, i, "async_pending")
if os.path.isdir(asyncdir):
for entry in os.listdir(asyncdir):
if os.path.isdir(os.path.join(asyncdir, entry)):
async_hdir = os.path.join(asyncdir, entry)
async_count += len(os.listdir(async_hdir))
return async_count
def main():
c = ConfigParser()
try:
conf_path = sys.argv[1]
except Exception:
print "Usage: %s CONF_FILE" % sys.argv[0].split('/')[-1]
print "ex: swift-recon-cron /etc/swift/object-server.conf"
sys.exit(1)
if not c.read(conf_path):
print "Unable to read config file %s" % conf_path
sys.exit(1)
conf = dict(c.items('filter:recon'))
device_dir = conf.get('devices', '/srv/node')
recon_cache_path = conf.get('recon_cache_path', '/var/cache/swift')
recon_lock_path = conf.get('recon_lock_path', '/var/lock')
cache_file = os.path.join(recon_cache_path, "object.recon")
lock_dir = os.path.join(recon_lock_path, "swift-recon-object-cron")
conf['log_name'] = conf.get('log_name', 'recon-cron')
logger = get_logger(conf, log_route='recon-cron')
try:
os.mkdir(lock_dir)
except OSError as e:
logger.critical(str(e))
print str(e)
sys.exit(1)
try:
asyncs = get_async_count(device_dir, logger)
dump_recon_cache({'async_pending': asyncs}, cache_file, logger)
except Exception:
logger.exception(
_('Exception during recon-cron while accessing devices'))
try:
os.rmdir(lock_dir)
except Exception:
logger.exception(_('Exception remove cronjob lock'))
if __name__ == '__main__':
main()