After the release of Swift ver. 2.0.0, some recon responses do not
show each policy's information yet. To make things worse, some recon
results only count on policy-0's score, therefore the total is not
shown in the recon results.
With this patch, async_pending count of recon results becomes
policy-aware. Suppose a number of async_pending files for policy-0 is 2
and a number for policy-1 is 3, recon sums up every policy's amount
as follows.
$ curl http://<host>:<port>/recon/async
{"async_pending": 5} # It showed 2 before this commit
Related-Bug: 1375332
Change-Id: Ifc88b8c9e06b9f022a926a87ed807e938e1e0412
		
	
		
			
				
	
	
		
			85 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
			
		
		
	
	
			85 lines
		
	
	
		
			2.9 KiB
		
	
	
	
		
			Python
		
	
	
		
			Executable File
		
	
	
	
	
#!/usr/bin/env python
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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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# See the License for the specific language governing permissions and
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# limitations under the License.
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"""
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swift-recon-cron.py
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"""
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import os
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import sys
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from ConfigParser import ConfigParser
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from gettext import gettext as _
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from swift.common.utils import get_logger, dump_recon_cache
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from swift.obj.diskfile import ASYNCDIR_BASE
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def get_async_count(device_dir, logger):
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    async_count = 0
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    for i in os.listdir(device_dir):
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        device = os.path.join(device_dir, i)
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        for asyncdir in os.listdir(device):
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            # skip stuff like "accounts", "containers", etc.
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            if not (asyncdir == ASYNCDIR_BASE or
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                    asyncdir.startswith(ASYNCDIR_BASE + '-')):
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                continue
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            async_pending = os.path.join(device, asyncdir)
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            if os.path.isdir(async_pending):
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                for entry in os.listdir(async_pending):
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                    if os.path.isdir(os.path.join(async_pending, entry)):
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                        async_hdir = os.path.join(async_pending, entry)
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                        async_count += len(os.listdir(async_hdir))
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    return async_count
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def main():
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    c = ConfigParser()
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    try:
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        conf_path = sys.argv[1]
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    except Exception:
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        print "Usage: %s CONF_FILE" % sys.argv[0].split('/')[-1]
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        print "ex: swift-recon-cron /etc/swift/object-server.conf"
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        sys.exit(1)
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    if not c.read(conf_path):
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        print "Unable to read config file %s" % conf_path
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        sys.exit(1)
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    conf = dict(c.items('filter:recon'))
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    device_dir = conf.get('devices', '/srv/node')
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    recon_cache_path = conf.get('recon_cache_path', '/var/cache/swift')
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    recon_lock_path = conf.get('recon_lock_path', '/var/lock')
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    cache_file = os.path.join(recon_cache_path, "object.recon")
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    lock_dir = os.path.join(recon_lock_path, "swift-recon-object-cron")
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    conf['log_name'] = conf.get('log_name', 'recon-cron')
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    logger = get_logger(conf, log_route='recon-cron')
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    try:
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        os.mkdir(lock_dir)
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    except OSError as e:
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        logger.critical(str(e))
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        print str(e)
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        sys.exit(1)
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    try:
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        asyncs = get_async_count(device_dir, logger)
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        dump_recon_cache({'async_pending': asyncs}, cache_file, logger)
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    except Exception:
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        logger.exception(
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            _('Exception during recon-cron while accessing devices'))
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    try:
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        os.rmdir(lock_dir)
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    except Exception:
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        logger.exception(_('Exception remove cronjob lock'))
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if __name__ == '__main__':
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    main()
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