Grokbase Groups Lucene dev June 2016
FAQ
[ https://issues.apache.org/jira/browse/SOLR-9030?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Rowe reopened SOLR-9030:
------------------------------

Reopening to backport to 5.6 and 5.5.2.
The 'downnode' command can trip asserts in ZkStateWriter
--------------------------------------------------------

Key: SOLR-9030
URL: https://issues.apache.org/jira/browse/SOLR-9030
Project: Solr
Issue Type: Bug
Components: SolrCloud
Reporter: Shalin Shekhar Mangar
Assignee: Shalin Shekhar Mangar
Fix For: 6.0.1, 6.1, master (7.0)

Attachments: SOLR-9030.patch, SOLR-9030.patch


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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