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#!/usr/bin/env python
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you 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.
#
# Functions for comparing broker log files, used by cluster_tests.py.
import os, os.path, re, glob
from itertools import izip
def split_log(log):
"""Split a broker log at checkpoints where a member joins.
Return the set of checkpoints discovered."""
checkpoint_re = re.compile("Member joined, frameSeq=([0-9]+), queue snapshot:")
outfile = None
checkpoints = []
for l in open(log):
match = checkpoint_re.search(l)
if match:
checkpoint = match.groups()[0]
checkpoints.append(checkpoint)
if outfile: outfile.close()
outfile = open("%s.%s"%(log, checkpoint), 'w')
if outfile: outfile.write(l)
if outfile: outfile.close()
return checkpoints
def filter_log(log):
"""Filter the contents of a log file to remove data that is expected
to differ between brokers in a cluster. Filtered log contents between
the same checkpoints should match across the cluster."""
out = open("%s.filter"%(log), 'w')
for l in open(log):
# Lines to skip entirely
skip = "|".join([
'local connection', # Only on local broker
'UPDATER|UPDATEE', # Ignore update process
'stall for update|unstall, ignore update|cancelled offer .* unstall',
'caught up',
'active for links|Passivating links|Activating links',
'info Connection.* connected to', # UpdateClient connection
'warning Broker closed connection: 200, OK',
'task late',
'task overran',
'warning CLOSING .* unsent data',
'Inter-broker link '
])
if re.compile(skip).search(l): continue
# Regex to match a UUID
uuid='\w\w\w\w\w\w\w\w-\w\w\w\w-\w\w\w\w-\w\w\w\w-\w\w\w\w\w\w\w\w\w\w\w\w'
# Regular expression substitutions to remove expected differences
for pattern,subst in [
(r'\d\d\d\d-\d\d-\d\d \d\d:\d\d:\d\d ', ''), # Remove timestamp
(r'cluster\([0-9.: ]*', 'cluster('), # Remove cluster node id
(r' local\)| shadow\)', ')'), # Remove local/shadow indication
(r'CATCHUP', 'READY'), # Treat catchup as equivalent to ready.
(r'OFFER', 'READY'), # Treat offer as equivalent to ready.
# System UUID expected to be different
(r'(org.apache.qpid.broker:system[:(])%s(\)?)'%(uuid), r'\1UUID\2'),
# FIXME aconway 2010-12-20: substitutions to mask known problems
# See https://issues.apache.org/jira/browse/QPID-2982
(r' len=\d+', ' len=NN'), # buffer lengths
(r' map={.*_object_name:([^,}]*)[,}].*', r' \1'), # V2 map - just keep name
(r'\d+-\d+-\d+--\d+', 'X-X-X--X'), # V1 Object IDs
]: l = re.sub(pattern,subst,l)
out.write(l)
out.close()
def verify_logs(logs):
"""Compare log files from cluster brokers, verify that they correspond correctly."""
# FIXME aconway 2011-01-19: disable when called from unit tests
# Causing sporadic failures, see https://issues.apache.org/jira/browse/QPID-3007
if __name__ != "__main__": return
for l in glob.glob("*.log"): filter_log(l)
checkpoints = set()
for l in glob.glob("*.filter"): checkpoints = checkpoints.union(set(split_log(l)))
errors=[]
for c in checkpoints:
fragments = glob.glob("*.filter.%s"%(c))
fragments.sort(reverse=True, key=os.path.getsize)
while len(fragments) >= 2:
a = fragments.pop(0)
b = fragments[0]
for ab in izip(open(a), open(b)):
if ab[0] != ab[1]:
errors.append("\n %s %s"%(a, b))
break
if errors:
raise Exception("Files differ in %s"%(os.getcwd())+"".join(errors))
# Can be run as a script.
if __name__ == "__main__":
verify_logs(glob.glob("*.log"))
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