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Upgrade Logstash Elasticsearch cluster to 1.6.0
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Description

Keeping up with the Cirrus cluster (T103599)

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bd808 raised the priority of this task from to Medium.
bd808 updated the task description. (Show Details)
bd808 added a project: Wikimedia-Logstash.
bd808 added a subscriber: bd808.

1.6.0 should be the default version in apt now that https://gerrit.wikimedia.org/r/#/c/223251/ has been merged.

bd808 added a project: User-bd808.

Beta cluster updated on 2015-07-08. Upgrade for production cluster scheduled to start at 2015-07-10T19:00Z.

Ran into one issue so far while upgrading. The /etc/default/elasticsearch file that we've been using on other hosts with no issues had strange errors on logstash1004. The fix was simple but annoying: https://gerrit.wikimedia.org/r/#/c/224185/

bd808 moved this task from To Do to Done on the User-bd808 board.