opendev/elastic-recheck
Code Issues Proposed changes
Classify tempest-devstack failures using ElasticSearch
229 Commits 2 Branches 0 Tags 14 MiB
Python 53.3%
JavaScript 38.1%
HTML 7.5%
Makefile 0.5%
CSS 0.4%
Other 0.2%
f06073513a
Go to file
Matt Riedemann f06073513a Add grenade jobs to the bug 1258682 e-r query 
Related-Bug: #1258682

Change-Id: Id9b6e81c40e5bd0dfd9d963eb3f9c9fa055fc100
2013-12-13 12:32:57 -08:00
doc/source Document adding bug signatures to e-r. 2013-12-12 12:34:54 -08:00
elastic_recheck make launchpad integration optional 2013-12-11 19:47:39 -05:00
queries Add grenade jobs to the bug 1258682 e-r query 2013-12-13 12:32:57 -08:00
web refactor graphite stanzas for readability 2013-12-11 09:19:47 -05:00
.coveragerc Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
.gitignore Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
.gitreview Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
.testr.conf Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
babel.cfg Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
CONTRIBUTING.rst Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
elasticRecheck.conf.sample move queries.yaml into a queries subdir 2013-12-02 11:43:00 -05:00
LICENSE Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
MANIFEST.in Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
README.rst Document adding bug signatures to e-r. 2013-12-12 12:34:54 -08:00
recheckwatchbot.yaml Make bot.py behave like a daemon 2013-09-18 17:45:12 -04:00
requirements.txt Make pid file configurable 2013-09-30 10:29:32 -07:00
setup.cfg add support for installing the web dashboard 2013-12-03 10:41:21 -08:00
setup.py Apply Cookiecutter to the repo. 2013-09-23 15:27:39 -07:00
test-requirements.txt Cap Sphinx at <1.2 to avoid distutils problems. 2013-12-10 16:34:44 -08:00
tox.ini Fix E122,E126,E128 items in codebase 2013-12-02 11:43:51 -05:00

README.rst

elastic-recheck

"Classify tempest-devstack failures using ElasticSearch"

Idea

When a tempest job failure is detected, by monitoring gerrit (using gerritlib), a collection of logstash queries will be run on the failed job to detect what the bug was.

Eventually this can be tied into the rechecker tool and launchpad

queries/

All queries are stored in separate yaml files in a queries directory at the top of the elastic_recheck code base. The format of these files is ######.yaml (where ###### is the bug number), the yaml should have a query keyword which is the query text for elastic search.

Guidelines for good queries

  • After a bug is resolved and has no more hits in elasticsearch, we should flag it with a resolved_at keyword. This will let us keep some memory of past bugs, and see if they come back. (Note: this is a forward looking statement, sorting out resolved_at will come in the future)
  • Queries should get as close as possible to fingerprinting the root cause
  • Queries should not return any hits for successful jobs, this is a sign the query isn't specific enough

In order to support rapidly added queries, it's considered socially acceptable to +A changes that only add 1 new bug query, and to even self approve those changes by core reviewers.

Adding Bug Signatures

Most transient bugs seen in gate are not bugs in tempest associated with a specific tempest test failure, but rather some sort of issue further down the stack that can cause many tempest tests to fail.

  1. Given a transient bug that is seen during the gate, go through the logs (logs.openstack.org) and try to find a log that is associated with the failure. The closer to the root cause the better.
  2. Go to logstash.openstack.org and create an elastic search query to find the log message from step 1. To see the possible fields to search on click on an entry. Lucene query syntax is available at http://lucene.apache.org/core/4_0_0/queryparser/org/apache/lucene/queryparser/classic/package-summary.html#package_description
  3. Add a comment to the bug with the query you identified and a link to the logstash url for that query search.
  4. Add the query to elastic-recheck/queries/BUGNUMBER.yaml and push the patch up for review. https://git.openstack.org/cgit/openstack-infra/elastic-recheck/tree/queries

Future Work

  • Move config files into a separate directory
  • Make unit tests robust
  • Add debug mode flag
  • Expand gating testing
  • Cleanup and document code better
  • Sort out resolved_at stamping to remove active bugs
  • Move away from polling ElasticSearch to discover if its ready or not
  • Add nightly job to propose a patch to remove bug queries that return no hits -- Bug hasn't been seen in 2 weeks and must be closed
  • implement resolved_at in loader

Main Dependencies

  • gerritlib
  • pyelasticsearch