72 lines
2.1 KiB
Python
72 lines
2.1 KiB
Python
#!/usr/bin/python
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# Copyright 2016 Mirantis, Inc.
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#
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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 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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import collectd
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import collectd_base as base
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from pymemcache.client import base as memcache
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NAME = 'memcached'
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class MemcachedCheckPlugin(base.Base):
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def __init__(self, *args, **kwargs):
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super(MemcachedCheckPlugin, self).__init__(*args, **kwargs)
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self.plugin = NAME
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self.host = None
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self.port = 11211
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def config_callback(self, conf):
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super(MemcachedCheckPlugin, self).config_callback(conf)
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for node in conf.children:
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if node.key == 'Host':
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self.host = node.values[0]
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if node.key == 'Port':
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# Must coerce to integer to avoid getting a float value.
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self.port = int(node.values[0])
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if self.host is None:
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self.logger.error('Missing Host parameter')
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def read_callback(self):
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try:
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mc = memcache.Client((self.host, self.port))
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mc.get('__get_non_existent_key__')
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self.dispatch_check_metric(self.OK)
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except Exception as e:
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msg = 'Fail to query memcached ({}:{}): {}'.format(self.host,
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self.port,
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e)
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self.logger.error(msg)
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self.dispatch_check_metric(self.FAIL, msg)
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plugin = MemcachedCheckPlugin(collectd)
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def config_callback(conf):
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plugin.config_callback(conf)
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def read_callback():
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plugin.read_callback()
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collectd.register_config(config_callback)
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collectd.register_read(read_callback)
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