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#!/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.
from __future__ import print_function
import optparse
import subprocess
import sys
if __name__ == '__main__':
parser = optparse.OptionParser(usage='''%prog [options]
Lists old Swift processes.
'''.strip())
parser.add_option('-a', '--age', dest='hours', type='int', default=720,
help='look for processes at least HOURS old; '
'default: 720 (30 days)')
parser.add_option('-p', '--pids', action='store_true',
help='only print the pids found; for example, to pipe '
'to xargs kill')
(options, args) = parser.parse_args()
listing = []
for line in subprocess.Popen(
['ps', '-eo', 'etime,pid,args', '--no-headers'],
stdout=subprocess.PIPE).communicate()[0].split(b'\n'):
if not line:
continue
hours = 0
try:
etime, pid, args = line.decode('ascii').split(None, 2)
except ValueError:
# This covers both decoding and not-enough-values-to-unpack errors
sys.exit('Could not process ps line %r' % line)
if not args.startswith((
'/usr/bin/python /usr/bin/swift-',
'/usr/bin/python /usr/local/bin/swift-',
'/bin/python /usr/bin/swift-',
'/usr/bin/python3 /usr/bin/swift-',
'/usr/bin/python3 /usr/local/bin/swift-',
'/bin/python3 /usr/bin/swift-')):
continue
args = args.split('-', 1)[1]
etime = etime.split('-')
if len(etime) == 2:
hours = int(etime[0]) * 24
etime = etime[1]
elif len(etime) == 1:
etime = etime[0]
else:
sys.exit('Could not process etime value from %r' % line)
etime = etime.split(':')
if len(etime) == 3:
hours += int(etime[0])
elif len(etime) != 2:
sys.exit('Could not process etime value from %r' % line)
if hours >= options.hours:
listing.append((str(hours), pid, args))
if not listing:
sys.exit()
if options.pids:
for hours, pid, args in listing:
print(pid)
else:
hours_len = len('Hours')
pid_len = len('PID')
args_len = len('Command')
for hours, pid, args in listing:
hours_len = max(hours_len, len(hours))
pid_len = max(pid_len, len(pid))
args_len = max(args_len, len(args))
args_len = min(args_len, 78 - hours_len - pid_len)
print('%*s %*s %s' % (hours_len, 'Hours', pid_len, 'PID', 'Command'))
for hours, pid, args in listing:
print('%*s %*s %s' % (hours_len, hours, pid_len,
pid, args[:args_len]))
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