![Masayuki Igawa](/assets/img/avatar_default.png)
We don't need to have the vim headers in each source files. We can set it in our vimrc file instead. Also if set incorrectly, gate (pep8 check) will catch the mistakes. More discussions: http://lists.openstack.org/pipermail/openstack-dev/2013-October/017353.html Change-Id: I43703e2289212389c7841f44691ae7849ed1f505 Closes-Bug: #1229324
159 lines
4.1 KiB
Python
Executable File
159 lines
4.1 KiB
Python
Executable File
#!/usr/bin/env python
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# Copyright 2013 IBM Corp.
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# All Rights Reserved.
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#
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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 gzip
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import re
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import StringIO
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import sys
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import urllib2
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import pprint
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pp = pprint.PrettyPrinter()
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NOVA_TIMESTAMP = r"\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d\.\d\d\d"
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NOVA_REGEX = r"(?P<timestamp>%s) (?P<pid>\d+ )?(?P<level>(ERROR|TRACE)) " \
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"(?P<module>[\w\.]+) (?P<msg>.*)" % (NOVA_TIMESTAMP)
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class StackTrace(object):
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timestamp = None
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pid = None
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level = ""
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module = ""
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msg = ""
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def __init__(self, timestamp=None, pid=None, level="", module="",
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msg=""):
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self.timestamp = timestamp
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self.pid = pid
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self.level = level
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self.module = module
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self.msg = msg
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def append(self, msg):
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self.msg = self.msg + msg
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def is_same(self, data):
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return (data['timestamp'] == self.timestamp and
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data['level'] == self.level)
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def not_none(self):
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return self.timestamp is not None
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def __str__(self):
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buff = "<%s %s %s>\n" % (self.timestamp, self.level, self.module)
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for line in self.msg.splitlines():
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buff = buff + line + "\n"
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return buff
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def hunt_for_stacktrace(url):
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"""Return TRACE or ERROR lines out of logs."""
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req = urllib2.Request(url)
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req.add_header('Accept-Encoding', 'gzip')
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page = urllib2.urlopen(req)
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buf = StringIO.StringIO(page.read())
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f = gzip.GzipFile(fileobj=buf)
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content = f.read()
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traces = []
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trace = StackTrace()
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for line in content.splitlines():
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m = re.match(NOVA_REGEX, line)
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if m:
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data = m.groupdict()
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if trace.not_none() and trace.is_same(data):
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trace.append(data['msg'] + "\n")
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else:
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trace = StackTrace(
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timestamp=data.get('timestamp'),
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pid=data.get('pid'),
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level=data.get('level'),
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module=data.get('module'),
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msg=data.get('msg'))
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else:
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if trace.not_none():
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traces.append(trace)
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trace = StackTrace()
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# once more at the end to pick up any stragglers
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if trace.not_none():
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traces.append(trace)
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return traces
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def log_url(url, log):
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return "%s/%s" % (url, log)
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def collect_logs(url):
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page = urllib2.urlopen(url)
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content = page.read()
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logs = re.findall('(screen-[\w-]+\.txt\.gz)</a>', content)
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return logs
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def usage():
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print("""
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Usage: find_stack_traces.py <logurl>
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Hunts for stack traces in a devstack run. Must provide it a base log url
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from a tempest devstack run. Should start with http and end with /logs/.
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Returns a report listing stack traces out of the various files where
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they are found.
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""")
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sys.exit(0)
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def print_stats(items, fname, verbose=False):
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errors = len(filter(lambda x: x.level == "ERROR", items))
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traces = len(filter(lambda x: x.level == "TRACE", items))
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print("%d ERRORS found in %s" % (errors, fname))
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print("%d TRACES found in %s" % (traces, fname))
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if verbose:
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for item in items:
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print(item)
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print("\n\n")
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def main():
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if len(sys.argv) == 2:
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url = sys.argv[1]
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loglist = collect_logs(url)
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# probably wrong base url
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if not loglist:
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usage()
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for log in loglist:
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logurl = log_url(url, log)
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traces = hunt_for_stacktrace(logurl)
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if traces:
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print_stats(traces, log, verbose=True)
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else:
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usage()
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if __name__ == '__main__':
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main()
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