[jira] [Commented] (SOLR-6406) ConcurrentUpdateSolrServer hang in blockUntilFinished.

["Mark Miller (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SOLR-6406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14106906#comment-14106906 ] 

Mark Miller commented on SOLR-6406:
-----------------------------------

{noformat}
   1) Thread[id=55, name=qtp823025155-55, state=WAITING, group=TGRP-ChaosMonkeyNothingIsSafeTest]
        at java.lang.Object.wait(Native Method)
        at java.lang.Object.wait(Object.java:503)
        at org.apache.solr.client.solrj.impl.ConcurrentUpdateSolrServer.blockUntilFinished(ConcurrentUpdateSolrServer.java:374)
        at org.apache.solr.update.StreamingSolrServers.blockUntilFinished(StreamingSolrServers.java:103)
        at org.apache.solr.update.SolrCmdDistributor.blockAndDoRetries(SolrCmdDistributor.java:228)
        at org.apache.solr.update.SolrCmdDistributor.finish(SolrCmdDistributor.java:89)
        at org.apache.solr.update.processor.DistributedUpdateProcessor.doFinish(DistributedUpdateProcessor.java:766)
        at org.apache.solr.update.processor.DistributedUpdateProcessor.finish(DistributedUpdateProcessor.java:1662)
        at org.apache.solr.update.processor.LogUpdateProcessor.finish(LogUpdateProcessorFactory.java:179)
        at org.apache.solr.handler.ContentStreamHandlerBase.handleRequestBody(ContentStreamHandlerBase.java:83)
        at org.apache.solr.handler.RequestHandlerBase.handleRequest(RequestHandlerBase.java:135)
        at org.apache.solr.core.SolrCore.execute(SolrCore.java:1967)
        at org.apache.solr.servlet.SolrDispatchFilter.execute(SolrDispatchFilter.java:777)
{noformat}

> ConcurrentUpdateSolrServer hang in blockUntilFinished.
> ------------------------------------------------------
>
>                 Key: SOLR-6406
>                 URL: https://issues.apache.org/jira/browse/SOLR-6406
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Mark Miller
>             Fix For: 5.0, 4.11
>
>
> Not sure what is causing this, but SOLR-6136 may have taken us a step back here. I see this problem occasionally pop up in ChaosMonkeyNothingIsSafeTest now - test fails because of a thread leak, thread leak is due to a ConcurrentUpdateSolrServer hang in blockUntilFinished. Only started popping up recently.



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