def test_should_restart_bot_not_set(self):
state = {
'running_time': 0,
'started_ts': 1410989556.174,
}
self.assertEqual(
(False, ''), bot_management.should_restart_bot('id', state))
def test_should_restart_bot_not_set(self):
state = {
'running_time': 0,
'started_ts': 1410989556.174,
}
self.assertEqual(
(False, ''), bot_management.should_restart_bot('id', state))
def test_should_restart_bot_bad_type(self):
state = {
'periodic_reboot_secs': '100',
'running_time': 105,
'started_ts': 1410989556.174,
}
self.assertEqual(
(False, ''), bot_management.should_restart_bot('id', state))
def test_should_restart_bot_bad_type(self):
state = {
'periodic_reboot_secs': '100',
'running_time': 105,
'started_ts': 1410989556.174,
}
self.assertEqual(
(False, ''), bot_management.should_restart_bot('id', state))
def test_should_restart_bot(self):
state = {
'periodic_reboot_secs': 100,
'running_time': 105,
'started_ts': 1410989556.174,
}
needs_reboot, message = bot_management.should_restart_bot('id', state)
self.assertTrue(needs_reboot)
self.assertTrue(message)
def test_should_restart_bot(self):
state = {
'periodic_reboot_secs': 100,
'running_time': 105,
'started_ts': 1410989556.174,
}
needs_reboot, message = bot_management.should_restart_bot('id', state)
self.assertTrue(needs_reboot)
self.assertTrue(message)
def post(self):
"""Handles a polling request.
Be very permissive on missing values. This can happen because of errors
on the bot, *we don't want to deny them the capacity to update*, so that the
bot code is eventually fixed and the bot self-update to this working code.
It makes recovery of the fleet in case of catastrophic failure much easier.
"""
(_request, bot_id, version, state, dimensions,
quarantined_msg) = self._process()
sleep_streak = state.get('sleep_streak', 0)
quarantined = bool(quarantined_msg)
# Note bot existence at two places, one for stats at 1 minute resolution,
# the other for the list of known bots.
action = 'bot_inactive' if quarantined else 'bot_active'
stats.add_entry(action=action, bot_id=bot_id, dimensions=dimensions)
def bot_event(event_type, task_id=None, task_name=None):
bot_management.bot_event(event_type=event_type,
bot_id=bot_id,
external_ip=self.request.remote_addr,
dimensions=dimensions,
state=state,
version=version,
quarantined=quarantined,
task_id=task_id,
task_name=task_name,
message=quarantined_msg)
# Bot version is host-specific because the host URL is embedded in
# swarming_bot.zip
expected_version = bot_code.get_bot_version(self.request.host_url)
if version != expected_version:
bot_event('request_update')
self._cmd_update(expected_version)
return
if quarantined:
bot_event('request_sleep')
self._cmd_sleep(sleep_streak, quarantined)
return
#
# At that point, the bot should be in relatively good shape since it's
# running the right version. It is still possible that invalid code was
# pushed to the server, so be diligent about it.
#
# Bot may need a reboot if it is running for too long. We do not reboot
# quarantined bots.
needs_restart, restart_message = bot_management.should_restart_bot(
bot_id, state)
if needs_restart:
bot_event('request_restart')
self._cmd_restart(restart_message)
return
# The bot is in good shape. Try to grab a task.
try:
# This is a fairly complex function call, exceptions are expected.
request, run_result = task_scheduler.bot_reap_task(
dimensions, bot_id, version)
if not request:
# No task found, tell it to sleep a bit.
bot_event('request_sleep')
self._cmd_sleep(sleep_streak, quarantined)
return
try:
# This part is tricky since it intentionally runs a transaction after
# another one.
if request.properties.is_terminate:
bot_event('bot_terminate', task_id=run_result.task_id)
self._cmd_terminate(run_result.task_id)
else:
bot_event('request_task',
task_id=run_result.task_id,
task_name=request.name)
self._cmd_run(request, run_result.key, bot_id)
except:
logging.exception('Dang, exception after reaping')
raise
except runtime.DeadlineExceededError:
# If the timeout happened before a task was assigned there is no problems.
# If the timeout occurred after a task was assigned, that task will
# timeout (BOT_DIED) since the bot didn't get the details required to
# run it) and it will automatically get retried (TODO) when the task times
# out.
# TODO(maruel): Note the task if possible and hand it out on next poll.
# https://code.google.com/p/swarming/issues/detail?id=130
self.abort(500, 'Deadline')
def post(self):
"""Handles a polling request.
Be very permissive on missing values. This can happen because of errors
on the bot, *we don't want to deny them the capacity to update*, so that the
bot code is eventually fixed and the bot self-update to this working code.
It makes recovery of the fleet in case of catastrophic failure much easier.
"""
(_request, bot_id, version, state, dimensions, quarantined_msg) = self._process()
sleep_streak = state.get("sleep_streak", 0)
quarantined = bool(quarantined_msg)
# Note bot existence at two places, one for stats at 1 minute resolution,
# the other for the list of known bots.
action = "bot_inactive" if quarantined else "bot_active"
stats.add_entry(action=action, bot_id=bot_id, dimensions=dimensions)
def bot_event(event_type, task_id=None, task_name=None):
bot_management.bot_event(
event_type=event_type,
bot_id=bot_id,
external_ip=self.request.remote_addr,
dimensions=dimensions,
state=state,
version=version,
quarantined=quarantined,
task_id=task_id,
task_name=task_name,
message=quarantined_msg,
)
# Bot version is host-specific because the host URL is embedded in
# swarming_bot.zip
expected_version = bot_code.get_bot_version(self.request.host_url)
if version != expected_version:
bot_event("request_update")
self._cmd_update(expected_version)
return
if quarantined:
bot_event("request_sleep")
self._cmd_sleep(sleep_streak, quarantined)
return
#
# At that point, the bot should be in relatively good shape since it's
# running the right version. It is still possible that invalid code was
# pushed to the server, so be diligent about it.
#
# Bot may need a reboot if it is running for too long. We do not reboot
# quarantined bots.
needs_restart, restart_message = bot_management.should_restart_bot(bot_id, state)
if needs_restart:
bot_event("request_restart")
self._cmd_restart(restart_message)
return
# The bot is in good shape. Try to grab a task.
try:
# This is a fairly complex function call, exceptions are expected.
request, run_result = task_scheduler.bot_reap_task(dimensions, bot_id, version)
if not request:
# No task found, tell it to sleep a bit.
bot_event("request_sleep")
self._cmd_sleep(sleep_streak, quarantined)
return
try:
# This part is tricky since it intentionally runs a transaction after
# another one.
if request.properties.is_terminate:
bot_event("bot_terminate", task_id=run_result.task_id)
self._cmd_terminate(run_result.task_id)
else:
bot_event("request_task", task_id=run_result.task_id, task_name=request.name)
self._cmd_run(request, run_result.key, bot_id)
except:
logging.exception("Dang, exception after reaping")
raise
except runtime.DeadlineExceededError:
# If the timeout happened before a task was assigned there is no problems.
# If the timeout occurred after a task was assigned, that task will
# timeout (BOT_DIED) since the bot didn't get the details required to
# run it) and it will automatically get retried (TODO) when the task times
# out.
# TODO(maruel): Note the task if possible and hand it out on next poll.
# https://code.google.com/p/swarming/issues/detail?id=130
self.abort(500, "Deadline")
def post(self):
"""Handles a polling request.
Be very permissive on missing values. This can happen because of errors
on the bot, *we don't want to deny them the capacity to update*, so that the
bot code is eventually fixed and the bot self-update to this working code.
It makes recovery of the fleet in case of catastrophic failure much easier.
"""
if config.settings().force_bots_to_sleep_and_not_run_task:
# Ignore everything, just sleep. Tell the bot it is quarantined to inform
# it that it won't be running anything anyway. Use a large streak so it
# will sleep for 60s.
self._cmd_sleep(1000, True)
return
res = self._process()
sleep_streak = res.state.get('sleep_streak', 0)
quarantined = bool(res.quarantined_msg)
# Note bot existence at two places, one for stats at 1 minute resolution,
# the other for the list of known bots.
action = 'bot_inactive' if quarantined else 'bot_active'
stats.add_entry(action=action,
bot_id=res.bot_id,
dimensions=res.dimensions)
def bot_event(event_type, task_id=None, task_name=None):
bot_management.bot_event(
event_type=event_type,
bot_id=res.bot_id,
external_ip=self.request.remote_addr,
authenticated_as=auth.get_peer_identity().to_bytes(),
dimensions=res.dimensions,
state=res.state,
version=res.version,
quarantined=quarantined,
task_id=task_id,
task_name=task_name,
message=res.quarantined_msg)
# Bot version is host-specific because the host URL is embedded in
# swarming_bot.zip
expected_version = bot_code.get_bot_version(self.request.host_url)
if res.version != expected_version:
bot_event('request_update')
self._cmd_update(expected_version)
return
if quarantined:
bot_event('request_sleep')
self._cmd_sleep(sleep_streak, quarantined)
return
# If the server-side per-bot config for the bot has changed, we need
# to restart this particular bot, so it picks up new config in /handshake.
# Do this check only for bots that know about server-side per-bot configs
# already (such bots send 'bot_group_cfg_version' state attribute).
cur_bot_cfg_ver = res.state.get('bot_group_cfg_version')
if cur_bot_cfg_ver and cur_bot_cfg_ver != res.bot_group_cfg.version:
bot_event('request_restart')
self._cmd_restart('Restarting to pick up new bots.cfg config')
return
#
# At that point, the bot should be in relatively good shape since it's
# running the right version. It is still possible that invalid code was
# pushed to the server, so be diligent about it.
#
# Bot may need a reboot if it is running for too long. We do not reboot
# quarantined bots.
needs_restart, restart_message = bot_management.should_restart_bot(
res.bot_id, res.state)
if needs_restart:
bot_event('request_restart')
self._cmd_restart(restart_message)
return
# The bot is in good shape. Try to grab a task.
try:
# This is a fairly complex function call, exceptions are expected.
request, run_result = task_scheduler.bot_reap_task(
res.dimensions, res.bot_id, res.version,
res.state.get('lease_expiration_ts'))
if not request:
# No task found, tell it to sleep a bit.
bot_event('request_sleep')
self._cmd_sleep(sleep_streak, quarantined)
return
try:
# This part is tricky since it intentionally runs a transaction after
# another one.
if request.properties.is_terminate:
bot_event('bot_terminate', task_id=run_result.task_id)
self._cmd_terminate(run_result.task_id)
else:
bot_event('request_task',
task_id=run_result.task_id,
task_name=request.name)
self._cmd_run(request, run_result.key, res.bot_id)
except:
logging.exception('Dang, exception after reaping')
raise
except runtime.DeadlineExceededError:
# If the timeout happened before a task was assigned there is no problems.
# If the timeout occurred after a task was assigned, that task will
# timeout (BOT_DIED) since the bot didn't get the details required to
# run it) and it will automatically get retried (TODO) when the task times
# out.
# TODO(maruel): Note the task if possible and hand it out on next poll.
# https://code.google.com/p/swarming/issues/detail?id=130
self.abort(500, 'Deadline')
