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https://issues.apache.org/jira/browse/STORM-3321?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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ASF GitHub Bot updated STORM-3321:
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Labels: pull-request-available (was: )
> Tests are flaky due to long timeouts in Nimbus and supervisor when using
> LocalCluster
> -------------------------------------------------------------------------------------
>
> Key: STORM-3321
> URL: https://issues.apache.org/jira/browse/STORM-3321
> Project: Apache Storm
> Issue Type: Bug
> Affects Versions: 2.0.0
> Reporter: Stig Rohde Døssing
> Assignee: Stig Rohde Døssing
> Priority: Major
> Labels: pull-request-available
>
> Tests will sometimes fail with timeout when using e.g.
> Testing.completeTopology.
> The issue is that the timeout is 10 seconds, and Nimbus and the supervisor
> both have timers that monitor for new deployments that are also set to 10
> seconds. This causes tests to time out because a lot of the test time is
> wasted waiting for Nimbus/the supervisors to catch that the test topology is
> deployed.
> We should reduce these timeouts to their minimums.
> There is also a race in Nimbus that can cause test failures
> {quote}
> 2019-01-21 02:00:19.587 [main] WARN org.apache.storm.daemon.nimbus.Nimbus -
> Topology submission exception. (topology
> name='topologytest-45f5ad59-ec16-45a4-ba4a-eea992411cc1')
> java.lang.RuntimeException: not a leader, current leader is
> NimbusInfo{host='DESKTOP-AGC8TKM', port=6627, isLeader=true}
> at
> org.apache.storm.daemon.nimbus.Nimbus.assertIsLeader(Nimbus.java:1525)
> ~[classes/:?]
> at
> org.apache.storm.daemon.nimbus.Nimbus.submitTopologyWithOpts(Nimbus.java:2982)
> ~[classes/:?]
> at
> org.apache.storm.daemon.nimbus.Nimbus.submitTopology(Nimbus.java:2965)
> ~[classes/:?]
> at org.apache.storm.LocalCluster.submitTopology(LocalCluster.java:444)
> ~[classes/:?]
> at org.apache.storm.LocalCluster.submitTopology(LocalCluster.java:125)
> ~[classes/:?]
> at org.apache.storm.Testing.completeTopology(Testing.java:424)
> ~[classes/:?]
> {quote}
> The issue is that Nimbus has to acquire leadership in order to submit
> topologies, but LocalCluster doesn't wait for the Nimbus instance it creates
> to gain leadership.
> We should make LocalCluster wait for Nimbus to gain leadership.
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