monasca-notification/tools/mon_notification_offsets.py
2014-05-01 12:27:06 -06:00

77 lines
2.7 KiB
Python
Executable File

#!/usr/bin/env python
# Copyright (c) 2014 Hewlett-Packard Development Company, L.P.
#
# 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.
"""Used for manually querying/setting offsets associated with the mon_notification daemon.
This should only be used in unusual circumstances to force reprocessing or skip alarms.
"""
import argparse
import json
import logging
import sys
import yaml
from mon_notification import state_tracker
def listener():
"""Simple listener for ZookeeperStateTracker
"""
sys.exit(1)
def main():
# Parse args
parser = argparse.ArgumentParser(description="Query and set(DANGEROUS) mon_notification kafka consumer offsets\n")
parser.add_argument('--config', '-c', default='/etc/mon/notification.yaml', help='Configuration File')
## Either list or set not both
group = parser.add_mutually_exclusive_group(required=True)
group.add_argument('--list', '-l', action='store_true')
group.add_argument('--set-offsets', '-s',
help='A json style dictionary of partition:offset ie {"0": "0", "1": "2", "2": "3"}' +
"Only specified partitions are set")
args = parser.parse_args()
# Silence most logging from mon_notification
logging.basicConfig(level=logging.CRITICAL)
# Parse config and setup state tracker
config = yaml.load(open(args.config, 'r'))
tracker = state_tracker.ZookeeperStateTracker(
config['zookeeper']['url'], config['kafka']['alarm_topic'], None, config['zookeeper']['max_offset_lag'])
current_offsests = tracker.offsets
if args.list:
print(json.dumps(current_offsests))
else:
offsets = json.loads(args.set_offsets)
raw_input("Warning setting offset will affect the behavior of the next notification engine to run.\n" +
"\tCtrl-C to exit, enter to continue")
print("All running mon_notification daemons must be shutdown to allow this process to grab the lock.")
log = logging.getLogger('mon_notification.state_tracker')
log.setLevel(logging.DEBUG)
tracker.lock(listener)
for partition in offsets.iterkeys():
tracker._update_offset(int(partition), int(offsets[partition]))
if __name__ == "__main__":
sys.exit(main())