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https://issues.apache.org/jira/browse/SLIDER-376?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14115053#comment-14115053
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Steve Loughran commented on SLIDER-376:
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Xuan Gong says:
bq. In YARN, we have several unit test for RM HA, too. Such as TestRMFailover.
We are using MiniYarnCluster.
Also, There are many HA unit tests which extend ProtocolHATestBase. So, you can
take a look at ProtocolHATestBase, too.
Jing Zhao:
bq. In HDFS there are some HA related unit tests in the
{{org.apache.hadoop.hdfs.server.namenode.ha}} package. E.g.,
TestRetryCacheWithHA. Besides MiniQJMHACluster can be used if we also want to
enable QJM in the tests.
> use HA minicluster tests to simulate HA deployment/failover in unit tests
> -------------------------------------------------------------------------
>
> Key: SLIDER-376
> URL: https://issues.apache.org/jira/browse/SLIDER-376
> Project: Slider
> Issue Type: Improvement
> Components: test
> Affects Versions: Slider 0.60
> Environment: minicluster tests
> Reporter: Steve Loughran
> Original Estimate: 24h
> Remaining Estimate: 24h
>
> HDFS and YARN use miniclusters in HA mode to simulate the HA modes. If we
> switched some of our tests to HA mode, we can validate HA compatibility and
> failure handling
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