opendev/elastic-recheck
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Classify tempest-devstack failures using ElasticSearch
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Matt Riedemann 7790fabe2e Add e-r query for bug 1259907 
There are errors in the screen-g-api.txt log but they are whitelisted
errors already so we can't query on them since they would result in
false negatives.  See the bug report for more details.

Related-Bug: #1259907

Change-Id: I8553358e7316d466cbb88e1a3809dc17b5baf53f
2013-12-12 09:14:05 -08:00
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web refactor graphite stanzas for readability 2013-12-11 09:19:47 -05:00
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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.

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