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Posted to dev@lucene.apache.org by "Shalin Shekhar Mangar (JIRA)" <ji...@apache.org> on 2016/04/22 15:45:13 UTC
[jira] [Commented] (SOLR-9030) The 'downnode' command can trip
asserts in ZkStateWriter or cause BadVersionException in Overseer
[ https://issues.apache.org/jira/browse/SOLR-9030?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15253949#comment-15253949 ]
Shalin Shekhar Mangar commented on SOLR-9030:
---------------------------------------------
Although it can be reproduced in many tests rarely, I found it in AsyncCallRequestStatusResponseTest. Beasting this test finds the failure pretty often.
> The 'downnode' command can trip asserts in ZkStateWriter or cause BadVersionException in Overseer
> -------------------------------------------------------------------------------------------------
>
> Key: SOLR-9030
> URL: https://issues.apache.org/jira/browse/SOLR-9030
> Project: Solr
> Issue Type: Bug
> Components: SolrCloud
> Reporter: Shalin Shekhar Mangar
> Fix For: master, 6.1
>
>
> While working on SOLR-9014 I came across a strange test failure.
> {code}
> [junit4] ERROR 16.9s | AsyncCallRequestStatusResponseTest.testAsyncCallStatusResponse <<<
> [junit4] > Throwable #1: com.carrotsearch.randomizedtesting.UncaughtExceptionError: Captured an uncaught exception in thread: Thread[id=46, name=OverseerStateUpdate-95769832112259076-127.0.0.1:51135_z_oeg%2Ft-n_0000000000, state=RUNNABLE, group=Overseer state updater.]
> [junit4] > at __randomizedtesting.SeedInfo.seed([91F68DA7E10807C3:CBF7E84BCF328A1A]:0)
> [junit4] > Caused by: java.lang.AssertionError
> [junit4] > at __randomizedtesting.SeedInfo.seed([91F68DA7E10807C3]:0)
> [junit4] > at org.apache.solr.cloud.overseer.ZkStateWriter.writePendingUpdates(ZkStateWriter.java:231)
> [junit4] > at org.apache.solr.cloud.Overseer$ClusterStateUpdater.run(Overseer.java:240)
> [junit4] > at java.lang.Thread.run(Thread.java:745)
> {code}
> The underlying problem can manifest by tripping the above assert or a BadVersionException as well. I found that this was introduced in SOLR-7281 where a new 'downnode' command was added.
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