104 lines
2.6 KiB
Python
104 lines
2.6 KiB
Python
# Copyright (c) 2013 Rackspace Hosting, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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#
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# See the License for the specific language governing permissions and
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# limitations under the License.
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import atexit
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import random
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import sys
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import termios
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import time
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from marconi import bootstrap
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from marconi.common import config
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from marconi.openstack.common import log as logging
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PROJECT_CFG = config.project('marconi')
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LOG = logging.getLogger(__name__)
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def _fail(returncode, ex):
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"""Handles terminal errors.
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:param returncode: process return code to pass to sys.exit
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:param ex: the error that occurred
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"""
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LOG.exception(ex)
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sys.stderr.write('ERROR: %s\n' % ex)
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sys.exit(returncode)
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def _enable_echo(enable):
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"""Enables or disables terminal echo.
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:param enable: pass True to enable echo, False to disable
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"""
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fd = sys.stdin.fileno()
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new = termios.tcgetattr(fd)
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if enable:
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new[3] |= termios.ECHO
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else:
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new[3] &= ~termios.ECHO
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termios.tcsetattr(fd, termios.TCSANOW, new)
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def run():
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"""Entry point to start marconi-gc.
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Operators should run 2-3 instances on different
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boxes for fault-tolerance.
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Note: This call blocks until the process is killed
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or interrupted.
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"""
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atexit.register(_enable_echo, True)
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_enable_echo(False)
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try:
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logging.setup('marconi')
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PROJECT_CFG.load(args=sys.argv[1:])
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info = _('Starting marconi-gc')
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print(info + _('. Use CTRL+C to exit...\n'))
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LOG.info(info)
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boot = bootstrap.Bootstrap(cli_args=sys.argv[1:])
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storage_driver = boot.storage
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gc_interval = storage_driver.gc_interval
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# NOTE(kgriffs): Don't want all garbage collector
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# instances running at the same time (will peg the DB).
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offset = random.random() * gc_interval
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time.sleep(offset)
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while True:
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storage_driver.gc()
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time.sleep(gc_interval)
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except NotImplementedError as ex:
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print('The configured storage driver does not support GC.\n')
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LOG.exception(ex)
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print('')
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except KeyboardInterrupt:
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LOG.info('Terminating marconi-gc')
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except Exception as ex:
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_fail(1, ex)
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