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https://issues.apache.org/jira/browse/STORM-1976?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15382351#comment-15382351
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Robert Joseph Evans commented on STORM-1976:
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For me I keep seeing this. Min replication count was not set but the cluster
was run in HA mode and something bad happened, and then HA did not recover
cleanly. This issue is that without with min replication count HA does not
really work properly. It would be nice to have a way to make this simpler for
end users so they don't have something else to configure. But the reality is
that a lot of this feels like user errors and errors in documentation, not
blockers for the software. Additionally I don't think we want to "fix" min
replication count not being set quickly. I think it is a more complex problem.
> Storm Nimbus H/A has issue on cleaning corrupted topologies
> -----------------------------------------------------------
>
> Key: STORM-1976
> URL: https://issues.apache.org/jira/browse/STORM-1976
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Affects Versions: 1.0.0, 1.0.1
> Reporter: Raghav Kumar Gautam
> Assignee: Jungtaek Lim
> Priority: Blocker
>
> In the following scenario storm-ha runs into issues:
> 1. Kill a non-leader nimbus
> 2. Submit a topology
> 3. Bring up the non-leader nimbus
> After step-3 expectation is that the non-leader nimbus will download topology
> jar. Instead it cleans up the topology.
> {code}
> 2016-07-12 07:11:09.511 o.a.s.c.zookeeper-state-factory [WARN] Received event
> ::none: with disconnected Reader Zookeeper.
> 2016-07-12 07:11:09.587 o.a.s.zookeeper [INFO] Queued up for leader lock.
> 2016-07-12 07:11:09.608 o.a.s.d.nimbus [INFO] Corrupt topology
> JoinedNonLeaderNimbusTriesToDownloadTopologyCode-2-1468307239 has state on
> zookeeper but doesn't have a local dir on Nimbus. Cleaning up...
> 2016-07-12 07:11:09.932 o.a.h.m.s.s.StormTimelineMetricsReporter [INFO]
> Preparing Storm Metrics Reporter
> 2016-07-12 07:11:09.946 o.a.s.d.m.MetricsUtils [INFO] Using statistics
> reporter
> plugin:org.apache.storm.daemon.metrics.reporters.JmxPreparableReporter
> {code}
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