435 lines
15 KiB
Python
435 lines
15 KiB
Python
# 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 dateutil.parser as dp
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import gerritlib.gerrit
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import pyelasticsearch
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import sqlalchemy
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from sqlalchemy import orm
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from subunit2sql.db import api as db_api
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import datetime
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import logging
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import re
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import time
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import elastic_recheck.config as er_conf
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import elastic_recheck.loader as loader
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import elastic_recheck.query_builder as qb
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from elastic_recheck import results
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def required_files(job):
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files = []
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if re.match("(tempest|grenade)-dsvm", job):
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files.extend([
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'logs/screen-n-api.txt',
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'logs/screen-n-cpu.txt',
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'logs/screen-n-sch.txt',
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'logs/screen-g-api.txt',
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'logs/screen-c-api.txt',
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'logs/screen-c-vol.txt',
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'logs/syslog.txt'])
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# we could probably add more neutron files
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# but currently only q-svc is used in queries
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if re.match("neutron", job):
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files.extend([
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'logs/screen-q-svc.txt',
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])
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else:
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files.extend([
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'logs/screen-n-net.txt',
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])
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# make sure that grenade logs exist
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if re.match("grenade", job):
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files.extend(['logs/grenade.sh.txt'])
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return files
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def format_timedelta(td):
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"""Format a timedelta value on seconds boundary."""
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return "%d:%2.2d" % (td.seconds / 60, td.seconds % 60)
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class ConsoleNotReady(Exception):
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pass
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class FilesNotReady(Exception):
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pass
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class ResultTimedOut(Exception):
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pass
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class FailJob(object):
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"""A single failed job.
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A job is a zuul job.
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"""
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bugs = []
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build_short_uuid = None
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url = None
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name = None
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def __init__(self, name, url):
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self.name = name
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self.url = url
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# The last set of characters of the URL are the first 7 digits
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# of the build_uuid.
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self.build_short_uuid = list(filter(None, url.split('/')))[-1]
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def __repr__(self):
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return self.name
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class FailEvent(object):
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"""A FailEvent consists of one or more FailJobs.
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An event is a gerrit event.
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"""
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change = None
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rev = None
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project = None
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url = None
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build_short_uuids = []
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comment = None
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failed_jobs = []
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def __init__(self, event, failed_jobs, config=None):
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self.change = int(event['change']['number'])
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self.rev = int(event['patchSet']['number'])
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self.project = event['change']['project']
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self.url = event['change']['url']
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self.comment = event["comment"]
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self.created_on = event["eventCreatedOn"]
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# TODO(jogo): make FailEvent generate the jobs
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self.failed_jobs = failed_jobs
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self.config = config or er_conf.Config()
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def is_included_job(self):
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return re.search(self.config.jobs_re, self.comment)
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def name(self):
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return "%d,%d" % (self.change, self.rev)
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def bug_urls(self, bugs=None):
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if bugs is None:
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bugs = self.get_all_bugs()
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if not bugs:
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return None
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urls = ['https://bugs.launchpad.net/bugs/%s' % x for
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x in bugs]
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return urls
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def bug_list(self):
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"""A pretty printed bug list."""
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return "- " + "\n- ".join(self.bug_urls_map())
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def bug_urls_map(self):
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"""Produce sorted list of which jobs failed due to which bugs."""
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if not self.get_all_bugs():
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return None
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bug_map = {}
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for job in self.failed_jobs:
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if len(job.bugs) is 0:
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bug_map[job.name] = None
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else:
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bug_map[job.name] = ' '.join(self.bug_urls(job.bugs))
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bug_list = []
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for job in bug_map:
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if bug_map[job] is None:
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bug_list.append("%s: unrecognized error" % job)
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else:
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bug_list.append("%s: %s" % (job, bug_map[job]))
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return sorted(bug_list)
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def is_fully_classified(self):
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if self.get_all_bugs() is None:
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return True
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for job in self.failed_jobs:
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if len(job.bugs) is 0:
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return False
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return True
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def queue(self):
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# Assume one queue per gerrit event
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if len(self.failed_jobs) == 0:
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return None
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return self.failed_jobs[0].url.split('/')[6]
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def build_short_uuids(self):
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return [job.build_short_uuid for job in self.failed_jobs]
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def failed_job_names(self):
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return [job.name for job in self.failed_jobs]
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def get_all_bugs(self):
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bugs = set([])
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for job in self.failed_jobs:
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bugs |= set(job.bugs)
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if len(bugs) is 0:
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return None
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return list(bugs)
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def __repr__(self):
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return ("<FailEvent change:%s, rev:%s, project:%s,"
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"url:%s, comment:%s>" %
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(self.change, self.rev, self.project, self.url, self.comment))
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class Stream(object):
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"""Gerrit Stream.
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Monitors gerrit stream looking for tempest-devstack failures.
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"""
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log = logging.getLogger("recheckwatchbot")
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def __init__(self, user, host, key, config=None, thread=True):
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self.config = config or er_conf.Config()
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port = 29418
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self.gerrit = gerritlib.gerrit.Gerrit(host, user, port, key)
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self.es = results.SearchEngine(self.config.es_url)
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if thread:
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self.gerrit.startWatching()
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@staticmethod
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def parse_jenkins_failure(event, ci_username=er_conf.CI_USERNAME):
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"""Is this comment a jenkins failure comment."""
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if event.get('type', '') != 'comment-added':
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return False
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username = event['author'].get('username', '')
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if (username not in [ci_username, 'zuul']):
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return False
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if not ("Build failed" in
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event['comment']):
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return False
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failed_tests = []
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for line in event['comment'].split("\n"):
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# this is needed to know if we care about categorizing
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# these items. It's orthoginal to non voting ES searching.
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if " (non-voting)" in line:
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continue
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m = re.search(r"- ([\w-]+)\s*(http://\S+)\s*:\s*FAILURE", line)
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if m:
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failed_tests.append(FailJob(m.group(1), m.group(2)))
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return failed_tests
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def _job_console_uploaded(self, change, patch, name, build_short_uuid):
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query = qb.result_ready(change, patch, name, build_short_uuid)
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r = self.es.search(query, size='10', recent=True)
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if len(r) == 0:
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msg = ("Console logs not ready for %s %s,%s,%s" %
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(name, change, patch, build_short_uuid))
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raise ConsoleNotReady(msg)
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else:
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self.log.debug("Console ready for %s %s,%s,%s" %
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(name, change, patch, build_short_uuid))
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def _has_required_files(self, change, patch, name, build_short_uuid):
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query = qb.files_ready(change, patch, name, build_short_uuid)
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r = self.es.search(query, size='80', recent=True)
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files = [x['term'] for x in r.terms]
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# TODO(dmsimard): Reliably differentiate zuul v2 and v3 jobs
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required = required_files(name)
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missing_files = [x for x in required if x not in files]
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if (len(missing_files) != 0 or
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('console.html' not in files and 'job-output.txt' not in files)):
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msg = ("%s missing for %s %s,%s,%s" % (
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missing_files, name, change, patch, build_short_uuid))
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raise FilesNotReady(msg)
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def _does_es_have_data(self, event):
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"""Wait till ElasticSearch is ready, but return False if timeout."""
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# We wait 20 minutes wall time since receiving the event until we
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# treat the logs as missing
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timeout = 1200
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# Wait 40 seconds between queries.
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sleep_time = 40
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timed_out = False
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# This checks that we've got the console log uploaded, need to retry
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# in case ES goes bonkers on cold data, which it does some times.
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# We check at least once so that we can return success if data is
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# there. But then only check again until we reach a timeout since
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# the event was received.
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while True:
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try:
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for job in event.failed_jobs:
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# TODO(jogo): if there are three failed jobs and only the
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# last one isn't ready we don't need to keep rechecking
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# the first two
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self._job_console_uploaded(
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event.change, event.rev, job.name,
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job.build_short_uuid)
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self._has_required_files(
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event.change, event.rev, job.name,
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job.build_short_uuid)
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break
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except ConsoleNotReady as e:
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self.log.debug(e)
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except FilesNotReady as e:
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self.log.info(e)
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except pyelasticsearch.exceptions.InvalidJsonResponseError:
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# If ElasticSearch returns an error code, sleep and retry
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# TODO(jogo): if this works pull out search into a helper
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# function that does this.
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self.log.exception(
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"Elastic Search not responding")
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# If we fall through then we had a failure of some sort.
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# Wait until timeout is exceeded.
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now = time.time()
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if now > event.created_on + timeout:
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# We've waited too long for this event, move on.
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timed_out = True
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break
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time.sleep(sleep_time)
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if timed_out:
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elapsed = now - event.created_on
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msg = ("Required files not ready after %ss for %s %d,%d,%s" %
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(elapsed, job.name, event.change, event.rev,
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job.build_short_uuid))
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raise ResultTimedOut(msg)
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self.log.debug(
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"Found hits for change_number: %d, patch_number: %d"
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% (event.change, event.rev))
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self.log.info(
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"All files present for change_number: %d, patch_number: %d"
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% (event.change, event.rev))
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return True
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def get_failed_tempest(self):
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self.log.debug("entering get_failed_tempest")
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while True:
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event = self.gerrit.getEvent()
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failed_jobs = Stream.parse_jenkins_failure(
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event, ci_username=self.config.ci_username)
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if not failed_jobs:
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# nothing to see here, lets try the next event
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continue
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fevent = FailEvent(event, failed_jobs, self.config)
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# bail if the failure is from a project
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# that hasn't run any of the included jobs
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if not fevent.is_included_job():
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continue
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self.log.info("Looking for failures in %d,%d on %s" %
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(fevent.change, fevent.rev,
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", ".join(fevent.failed_job_names())))
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if self._does_es_have_data(fevent):
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return fevent
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def leave_comment(self, event, msgs, debug=False):
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parts = []
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if event.get_all_bugs():
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parts.append(msgs['found_bug'] % {'bugs': event.bug_list()})
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if event.is_fully_classified():
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parts.append(msgs['recheck_instructions'])
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else:
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parts.append(msgs['unrecognized'])
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parts.append(msgs['footer'])
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else:
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parts.append(msgs['no_bugs_found'])
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msg = '\n'.join(parts)
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self.log.debug("Compiled comment for commit %s:\n%s" %
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(event.name(), msg))
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if not debug:
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self.gerrit.review(event.project, event.name(), msg)
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def check_failed_test_ids_for_job(build_uuid, test_ids, session):
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failing_test_ids = db_api.get_failing_test_ids_from_runs_by_key_value(
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'build_short_uuid', build_uuid, session)
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for test_id in test_ids:
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if test_id in failing_test_ids:
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return True
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else:
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return False
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class Classifier(object):
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"""Classify failed tempest-devstack jobs based.
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Given a change and revision, query logstash with a list of known queries
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that are mapped to specific bugs.
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"""
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log = logging.getLogger("recheckwatchbot")
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queries = None
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def __init__(self, queries_dir, config=None):
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self.config = config or er_conf.Config()
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self.es = results.SearchEngine(self.config.es_url)
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self.queries_dir = queries_dir
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self.queries = loader.load(self.queries_dir)
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def hits_by_query(self, query, queue=None, facet=None, size=100, days=0):
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if queue:
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es_query = qb.single_queue(query, queue, facet=facet)
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else:
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es_query = qb.generic(query, facet=facet)
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return self.es.search(es_query, size=size, days=days)
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def most_recent(self):
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"""Return the datetime of the most recently indexed event."""
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query = qb.most_recent_event()
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results = self.es.search(query, size='1')
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if len(results) > 0:
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last = dp.parse(results[0].timestamp)
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return last
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return datetime.datetime.utcfromtimestamp(0)
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def classify(self, change_number, patch_number,
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build_short_uuid, recent=False):
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"""Returns either empty list or list with matched bugs."""
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self.log.debug("Entering classify")
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# Reload each time
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self.queries = loader.load(self.queries_dir)
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bug_matches = []
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engine = sqlalchemy.create_engine(self.config.db_uri)
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Session = orm.sessionmaker(bind=engine)
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session = Session()
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for x in self.queries:
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if x.get('suppress-notification'):
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continue
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self.log.debug(
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"Looking for bug: https://bugs.launchpad.net/bugs/%s"
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% x['bug'])
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query = qb.single_patch(x['query'], change_number, patch_number,
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build_short_uuid)
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results = self.es.search(query, size='10', recent=recent)
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if len(results) > 0:
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if x.get('test_ids', None):
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test_ids = x['test_ids']
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self.log.debug(
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"For bug %s checking subunit2sql for failures on "
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"test_ids: %s" % (x['bug'], test_ids))
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if check_failed_test_ids_for_job(build_short_uuid,
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test_ids, session):
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bug_matches.append(x['bug'])
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else:
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bug_matches.append(x['bug'])
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return bug_matches
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