85 lines
3.1 KiB
Python
85 lines
3.1 KiB
Python
# (C) Copyright 2015-2016 Hewlett Packard Enterprise Development LP
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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import logging
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import os
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import re
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from datetime import datetime
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import monasca_agent.collector.checks as checks
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log = logging.getLogger(__name__)
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class Crash(checks.AgentCheck):
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def __init__(self, name, init_config, agent_config):
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super(Crash, self).__init__(name, init_config, agent_config)
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self.crash_dir = self.init_config.get('crash_dir', '/var/crash')
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log.debug('crash dir: %s', self.crash_dir)
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def _create_datetime_for_rhel71(self, dir_name):
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date_parts = dir_name.split('-')
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parts_len = len(date_parts)
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if parts_len > 2:
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try:
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# Use last two parts, because the front part(IP address part) is not checked.
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date_part = date_parts[parts_len - 2] + '-' + date_parts[parts_len - 1]
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return datetime.strptime(date_part, '%Y.%m.%d-%H:%M:%S')
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except ValueError:
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pass
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def _check_dir_name(self, dir_name):
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dt = None
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if dir_name is None:
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return None
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# Check for CentOS 7.1 and RHEL 7.1. <IP-address>-YYYY.MM.dd-HH:mm:ss
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# (e.g. 127.0.0.1-2015.10.02-16:07:51)
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elif re.match(r".*-\d{4}[.]\d{2}[.]\d{2}-\d{2}:\d{2}:\d{2}$", dir_name):
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dt = self._create_datetime_for_rhel71(dir_name)
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else:
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try:
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dt = datetime.strptime(dir_name, '%Y%m%d%H%M')
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except ValueError:
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pass
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return dt
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def check(self, instance):
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"""Capture crash dump statistics
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"""
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dimensions = self._set_dimensions(None, instance)
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dump_count = 0
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value_meta = None
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# Parse the crash directory
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if os.path.isdir(self.crash_dir):
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for entry in sorted(os.listdir(self.crash_dir), reverse=True):
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if os.path.isdir(os.path.join(self.crash_dir, entry)):
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dt = self._check_dir_name(entry)
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if dt is None:
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continue
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# Found a valid crash dump directory
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log.debug('found crash dump dir: %s',
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os.path.join(self.crash_dir, entry))
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dump_count += 1
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# Return the date-/timestamp of the most recent crash
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if dump_count == 1:
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value_meta = {'latest': unicode(dt)}
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log.debug('dump_count: %s', dump_count)
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self.gauge('crash.dump_count', dump_count, dimensions=dimensions,
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value_meta=value_meta)
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