def kill_running_process():
"""Find and kill any running web service processes."""
global service_name
try:
pid = get_pid(service_name)
except IOError:
# We could not find an existing pidfile.
return
except ValueError:
# The file contained a mangled and invalid PID number, so we should
# clean the file up.
safe_unlink(pidfile_path(service_name))
else:
if pid is not None:
try:
os.kill(pid, signal.SIGTERM)
# We need to use a busy-wait to find out when the socket
# becomes available. Failing to do so causes a race condition
# between freeing the socket in the killed process, and
# opening it in the current one.
wait_for_service_shutdown()
except os.error as err:
if err.errno == errno.ESRCH:
# Whoops, we got a 'No such process' error. The PID file
# is probably stale, so we'll remove it to prevent trash
# from lying around in the test environment.
# See bug #237086.
safe_unlink(pidfile_path(service_name))
else:
raise
def kill_running_process():
"""Find and kill any running web service processes."""
global service_name
try:
pid = get_pid(service_name)
except IOError:
# We could not find an existing pidfile.
return
except ValueError:
# The file contained a mangled and invalid PID number, so we should
# clean the file up.
safe_unlink(pidfile_path(service_name))
else:
if pid is not None:
try:
os.kill(pid, signal.SIGTERM)
# We need to use a busy-wait to find out when the socket
# becomes available. Failing to do so causes a race condition
# between freeing the socket in the killed process, and
# opening it in the current one.
wait_for_service_shutdown()
except os.error as err:
if err.errno == errno.ESRCH:
# Whoops, we got a 'No such process' error. The PID file
# is probably stale, so we'll remove it to prevent trash
# from lying around in the test environment.
# See bug #237086.
safe_unlink(pidfile_path(service_name))
else:
raise
def test_sigdumpmem(self):
# XXX: AaronBentley 2010-04-07 bug=557356: Test breaks other tests.
return
# Remove the dump file, if one exists.
if os.path.exists(DUMP_FILE):
os.unlink(DUMP_FILE)
self.assertFalse(os.path.exists(DUMP_FILE))
# Get the pid for the process spawned by the AppServerLayer, which is
# the one we'll be sending the signal to.
orig_instance_name = config.instance_name
config.setInstance('testrunner-appserver')
pid = get_pid('launchpad')
config.setInstance(orig_instance_name)
# Send the signal and ensure the dump file is created.
os.kill(pid, SIGDUMPMEM)
timeout = 10
start_time = time.time()
while time.time() < start_time + timeout:
if os.path.exists(DUMP_FILE):
break
self.assertTrue(os.path.exists(DUMP_FILE))
def test_sigdumpmem(self):
# XXX: AaronBentley 2010-04-07 bug=557356: Test breaks other tests.
return
# Remove the dump file, if one exists.
if os.path.exists(DUMP_FILE):
os.unlink(DUMP_FILE)
self.assertFalse(os.path.exists(DUMP_FILE))
# Get the pid for the process spawned by the AppServerLayer, which is
# the one we'll be sending the signal to.
orig_instance_name = config.instance_name
config.setInstance('testrunner-appserver')
pid = get_pid('launchpad')
config.setInstance(orig_instance_name)
# Send the signal and ensure the dump file is created.
os.kill(pid, SIGDUMPMEM)
timeout = 10
start_time = time.time()
while time.time() < start_time + timeout:
if os.path.exists(DUMP_FILE):
break
self.assertTrue(os.path.exists(DUMP_FILE))
def main():
parser = OptionParser('Usage: %prog [options] [SERVICE ...]')
parser.add_option("-w",
"--wait",
metavar="SECS",
default=20,
type="int",
help="Wait up to SECS seconds for processes "
"to die before retrying with SIGKILL")
logger_options(parser, logging.INFO)
(options, args) = parser.parse_args()
log = logger(options)
if len(args) < 1:
parser.error('No service name provided')
pids = [] # List of pids we tried to kill.
services = args[:]
# Mailman is special, but only stop it if it was launched.
if 'mailman' in services:
if config.mailman.launch:
stop_mailman()
services.remove('mailman')
for service in services:
log.debug("PID file is %s", pidfile_path(service))
try:
pid = get_pid(service)
except ValueError as error:
log.error(error)
continue
if pid is not None:
log.info("Killing %s (%d)", service, pid)
try:
os.kill(pid, SIGTERM)
pids.append((service, pid))
except OSError as x:
log.error("Unable to SIGTERM %s (%d) - %s", service, pid,
x.strerror)
else:
log.debug("No PID file for %s", service)
wait_for_pids(pids, options.wait, log)
# Anything that didn't die, kill harder with SIGKILL.
for service, pid in pids:
if not process_exists(pid):
continue
log.warn("SIGTERM failed to kill %s (%d). Trying SIGKILL", service,
pid)
try:
os.kill(pid, SIGKILL)
except OSError as x:
log.error("Unable to SIGKILL %s (%d) - %s", service, pid,
x.strerror)
wait_for_pids(pids, options.wait, log)
# Report anything still left running after a SIGKILL.
for service, pid in pids:
if process_exists(pid):
log.error("SIGKILL didn't terminate %s (%d)", service, pid)
# Remove any pidfiles that didn't get cleaned up if there is no
# corresponding process (from an unkillable process, or maybe some
# other job has relaunched it while we were not looking).
for service in services:
pid = get_pid(service)
if pid is not None and not process_exists(pid):
try:
remove_pidfile(service)
except OSError:
pass
import _pythonpath
from optparse import OptionParser
import sys
from lp.services.osutils import (
process_exists,
two_stage_kill,
)
from lp.services.pidfile import get_pid
parser = OptionParser(description="Stop loggerhead.")
parser.parse_args()
pid = get_pid("codebrowse")
if pid is None:
# Already stopped.
sys.exit(0)
if not process_exists(pid):
print('Stale pid file; server is not running.')
sys.exit(1)
print()
print('Shutting down previous server @ pid %d.' % (pid, ))
print()
# A busy gunicorn can take a while to shut down.
two_stage_kill(pid, poll_interval=0.5, num_polls=120, get_status=False)
def main():
parser = OptionParser('Usage: %prog [options] [SERVICE ...]')
parser.add_option("-w", "--wait", metavar="SECS",
default=20, type="int",
help="Wait up to SECS seconds for processes "
"to die before retrying with SIGKILL")
logger_options(parser, logging.INFO)
(options, args) = parser.parse_args()
log = logger(options)
if len(args) < 1:
parser.error('No service name provided')
pids = [] # List of pids we tried to kill.
services = args[:]
# Mailman is special, but only stop it if it was launched.
if 'mailman' in services:
if config.mailman.launch:
stop_mailman()
services.remove('mailman')
for service in services:
log.debug("PID file is %s", pidfile_path(service))
try:
pid = get_pid(service)
except ValueError as error:
log.error(error)
continue
if pid is not None:
log.info("Killing %s (%d)", service, pid)
try:
os.kill(pid, SIGTERM)
pids.append((service, pid))
except OSError as x:
log.error(
"Unable to SIGTERM %s (%d) - %s",
service, pid, x.strerror)
else:
log.debug("No PID file for %s", service)
wait_for_pids(pids, options.wait, log)
# Anything that didn't die, kill harder with SIGKILL.
for service, pid in pids:
if not process_exists(pid):
continue
log.warn(
"SIGTERM failed to kill %s (%d). Trying SIGKILL", service, pid)
try:
os.kill(pid, SIGKILL)
except OSError as x:
log.error(
"Unable to SIGKILL %s (%d) - %s", service, pid, x.strerror)
wait_for_pids(pids, options.wait, log)
# Report anything still left running after a SIGKILL.
for service, pid in pids:
if process_exists(pid):
log.error("SIGKILL didn't terminate %s (%d)", service, pid)
# Remove any pidfiles that didn't get cleaned up if there is no
# corresponding process (from an unkillable process, or maybe some
# other job has relaunched it while we were not looking).
for service in services:
pid = get_pid(service)
if pid is not None and not process_exists(pid):
try:
remove_pidfile(service)
except OSError:
pass
