[jira] [Created] (SOLR-9030) The 'downnode' command can trip asserts in ZkStateWriter or cause BadVersionException in Overseer

["Shalin Shekhar Mangar (JIRA)" <ji...@apache.org>]

Shalin Shekhar Mangar created SOLR-9030:
-------------------------------------------

             Summary: 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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