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-rw-r--r--compass-tasks/actions/health_check/check_celery.py115
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diff --git a/compass-tasks/actions/health_check/check_celery.py b/compass-tasks/actions/health_check/check_celery.py
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+# Copyright 2014 Huawei Technologies Co. Ltd
+#
+# 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.
+
+"""Health Check module for Celery."""
+import commands
+import os
+
+from celery.task.control import inspect
+
+from compass.actions.health_check import base
+from compass.actions.health_check import utils as health_check_utils
+
+
+class CeleryCheck(base.BaseCheck):
+ """celery health check class."""
+ NAME = "Celery Check."
+
+ def run(self):
+ """do health check."""
+ self.check_compass_celery_setting()
+ print "[Done]"
+ self.check_celery_backend()
+ print "[Done]"
+ if self.code == 1:
+ self.messages.append("[%s]Info: Celery health check "
+ "has completed. No problems found, "
+ "all systems go." % self.NAME)
+ return (self.code, self.messages)
+
+ def check_compass_celery_setting(self):
+ """Validates Celery settings."""
+
+ print "Checking Celery setting......",
+ setting_map = {
+ 'logfile': 'CELERY_LOGFILE',
+ 'configdir': 'CELERYCONFIG_DIR',
+ 'configfile': 'CELERYCONFIG_FILE',
+ }
+ unset = []
+ res = health_check_utils.validate_setting('Celery',
+ self.config,
+ 'CELERY_LOGFILE')
+ if res is False:
+ unset.append(setting_map["logfile"])
+ self._set_status(0, res)
+
+ res = health_check_utils.validate_setting('Celery',
+ self.config,
+ 'CELERYCONFIG_DIR')
+ if res is False:
+ unset.append(setting_map["configdir"])
+ self._set_status(0, res)
+
+ res = health_check_utils.validate_setting('Celery',
+ self.config,
+ 'CELERYCONFIG_FILE')
+ if res is False:
+ unset.append(setting_map["configdir"])
+ self._set_status(0, res)
+
+ if len(unset) != 0:
+ self._set_status(0,
+ "[%s]Error: Unset celery settings: %s"
+ " in /etc/compass/setting"
+ % (self.NAME, ', '.join(item for item in unset)))
+ return True
+
+ def check_celery_backend(self):
+ """Checks if Celery backend is running and configured properly."""
+
+ print "Checking Celery Backend......",
+ if 'celery worker' not in commands.getoutput('ps -ef'):
+ self._set_status(0, "[%s]Error: celery is not running" % self.NAME)
+ return True
+
+ if not os.path.exists('/etc/compass/celeryconfig'):
+ self._set_status(
+ 0,
+ "[%s]Error: No celery config file found for Compass"
+ % self.NAME)
+ return True
+
+ try:
+ insp = inspect()
+ celery_stats = inspect.stats(insp)
+ if not celery_stats:
+ self._set_status(
+ 0,
+ "[%s]Error: No running Celery workers were found."
+ % self.NAME)
+ except IOError as error:
+ self._set_status(
+ 0,
+ "[%s]Error: Failed to connect to the backend: %s"
+ % (self.NAME, str(error)))
+ from errno import errorcode
+ if (
+ len(error.args) > 0 and
+ errorcode.get(error.args[0]) == 'ECONNREFUSED'
+ ):
+ self.messages.append(
+ "[%s]Error: RabbitMQ server isn't running"
+ % self.NAME)
+ return True