ac4eaab80e
This is an upstreaming of: https://github.com/dolph/spandex https://pypi.python.org/pypi/spandex ... which I'll nuke if this is merged. I use this tool to write, test, and look for patterns in the results of elastic recheck queries. I never use logstash.openstack.org anymore. Change-Id: I864b22c05b398f6ad8ccb9009b5866f36b46789d
157 lines
4.5 KiB
Python
Executable File
157 lines
4.5 KiB
Python
Executable File
#!/usr/bin/env python
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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 argparse
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import base64
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import itertools
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import json
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import time
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import requests
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import yaml
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from elastic_recheck import log as logging
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LOG = logging.getLogger('erquery')
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ENDPOINT = 'http://logstash.openstack.org/api'
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DEFAULT_NUMBER_OF_DAYS = 10
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DEFAULT_MAX_QUANTITY = 5
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IGNORED_ATTRIBUTES = [
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'build_master',
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'build_patchset',
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'build_ref',
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'build_short_uuid',
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'build_uuid',
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'error_pr',
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'host',
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'received_at',
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'type',
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]
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def _GET(path):
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r = requests.get(ENDPOINT + path)
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if r.status_code != requests.codes.ok:
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LOG.info('Got HTTP %s, retrying...' % r.status_code)
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# retry once
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r = requests.get(ENDPOINT + path)
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try:
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return r.json()
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except Exception:
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raise SystemExit(r.text)
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def _encode(q):
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"""Encode a JSON dict for inclusion in a URL."""
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return base64.b64encode(json.dumps(q))
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def _unix_time_in_microseconds():
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return int(time.time() * 1000)
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def search(q, days):
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search = {
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'search': q,
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'fields': [],
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'offset': 0,
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'timeframe': str(days * 86400),
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'graphmode': 'count',
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'time': {
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'user_interval': 0},
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'stamp': _unix_time_in_microseconds()}
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return _GET('/search/%s' % _encode(search))
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def analyze_attributes(attributes):
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analysis = {}
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for attribute, values in attributes.iteritems():
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if attribute[0] == '@' or attribute == 'message':
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# skip meta attributes and raw messages
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continue
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analysis[attribute] = []
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total_hits = sum(values.values())
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for value_hash, hits in values.iteritems():
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value = json.loads(value_hash)
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analysis[attribute].append((100.0 * hits / total_hits, value))
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# sort by hit percentage descending, and then by value ascending
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analysis[attribute] = sorted(
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analysis[attribute],
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key=lambda x: (1 - x[0], x[1]))
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return analysis
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def query(query_file_name, days=DEFAULT_NUMBER_OF_DAYS,
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quantity=DEFAULT_MAX_QUANTITY, verbose=False):
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with open(query_file_name) as f:
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query_file = yaml.load(f.read())
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query = query_file['query']
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r = search(q=query, days=days)
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print('total hits: %s' % r['hits']['total'])
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attributes = {}
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for hit in r['hits']['hits']:
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for key, value in hit['_source'].iteritems():
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value_hash = json.dumps(value)
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attributes.setdefault(key, {}).setdefault(value_hash, 0)
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attributes[key][value_hash] += 1
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analysis = analyze_attributes(attributes)
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for attribute, results in sorted(analysis.iteritems()):
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if not verbose and attribute in IGNORED_ATTRIBUTES:
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# skip less-than-useful attributes to reduce noise in the report
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continue
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print(attribute)
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for percentage, value in itertools.islice(results, None, quantity):
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if isinstance(value, list):
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value = ' '.join(unicode(x) for x in value)
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print(' %d%% %s' % (percentage, value))
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def main():
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parser = argparse.ArgumentParser(
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description='Execute elastic-recheck query files and analyze the '
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'results.')
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parser.add_argument(
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'query_file', type=argparse.FileType('r'),
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help='Path to an elastic-recheck YAML query file.')
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parser.add_argument(
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'--quantity', '-q', type=int, default=DEFAULT_MAX_QUANTITY,
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help='Maximum quantity of values to show for each attribute.')
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parser.add_argument(
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'--days', '-d', type=float, default=DEFAULT_NUMBER_OF_DAYS,
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help='Timespan to query, in days (may be a decimal).')
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parser.add_argument(
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'--verbose', '-v', action='store_true', default=False,
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help='Report on additional query metadata.')
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args = parser.parse_args()
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query(args.query_file.name, args.days, args.quantity, args.verbose)
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if __name__ == "__main__":
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main()
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