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From Aurora ReviewBot <wfar...@apache.org>
Subject Re: Review Request 54288: Make leader elections resilient to ZK disconnections.
Date Mon, 12 Dec 2016 01:06:00 GMT

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This is an automatically generated e-mail. To reply, visit:
https://reviews.apache.org/r/54288/#review158811
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Ship it!




Master (c8e8953) is green with this patch.
  ./build-support/jenkins/build.sh

I will refresh this build result if you post a review containing "@ReviewBot retry"

- Aurora ReviewBot


On Dec. 12, 2016, 12:43 a.m., Zameer Manji wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/54288/
> -----------------------------------------------------------
> 
> (Updated Dec. 12, 2016, 12:43 a.m.)
> 
> 
> Review request for Aurora, David McLaughlin, Joshua Cohen, John Sirois, and Stephan Erb.
> 
> 
> Bugs: AURORA-1669
>     https://issues.apache.org/jira/browse/AURORA-1669
> 
> 
> Repository: aurora
> 
> 
> Description
> -------
> 
> As documented in AURORA-1840 the Curator `LeaderLatch` recipe abdicates
> leadership if the ZK connection is lost or if there is a timeout. This is not
> compatible with the commons based implementation which would only abdicate
> leadership if the ZK session timeout occurred.
> 
> This replaces the `LeaderLatch` recipe with the `LeaderSelector` recipe with a
> custom listener that only loses leadership if a connection loss occurs.
> 
> 
> Diffs
> -----
> 
>   commons/src/main/java/org/apache/aurora/common/zookeeper/testing/ZooKeeperTestServer.java
50acaeba82e163f8f2970a264cbd889c9eb3b5ed 
>   src/main/java/org/apache/aurora/scheduler/discovery/CuratorSingletonService.java c378172c850aafe0a9381552b5067277b40dbfab

>   src/test/java/org/apache/aurora/scheduler/discovery/BaseCuratorDiscoveryTest.java a2b4125369d1f6c0a79bc4ac0fb3d2dab8a6c583

>   src/test/java/org/apache/aurora/scheduler/discovery/CuratorSingletonServiceTest.java
6ea49b0c690d288ff59d1d4798144bfa2d153d3a 
> 
> Diff: https://reviews.apache.org/r/54288/diff/
> 
> 
> Testing
> -------
> 
> 
> Thanks,
> 
> Zameer Manji
> 
>


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