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From "Varun Thacker (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (SOLR-8779) Fix missing InterruptedException handling in ZkStateReader
Date Thu, 03 Mar 2016 09:04:18 GMT

     [ https://issues.apache.org/jira/browse/SOLR-8779?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Varun Thacker updated SOLR-8779:
--------------------------------
    Attachment: SOLR-8779.patch

Simple patch which sets the interrupt flag back in {{ZkStateReader#readConfigName}} , {{ZkStateReader#getClusterProps}}
, {{ZkStateReader#setClusterProperty}} and {{ZkStateReader#getSecurityProps}}

> Fix missing InterruptedException handling in ZkStateReader
> ----------------------------------------------------------
>
>                 Key: SOLR-8779
>                 URL: https://issues.apache.org/jira/browse/SOLR-8779
>             Project: Solr
>          Issue Type: Bug
>            Reporter: Varun Thacker
>             Fix For: 6.0
>
>         Attachments: SOLR-8779.patch
>
>
> I was debugging a zk session expired issue and saw this stack-trace
> {code}
> ERROR - 2016-03-03 06:55:53.873; [   ] org.apache.solr.common.SolrException; OverseerAutoReplicaFailoverThread
had an error in its thread work loop.:org.apache.solr.common.SolrException: Error reading
cluster properties
> 	at org.apache.solr.common.cloud.ZkStateReader.getClusterProps(ZkStateReader.java:738)
> 	at org.apache.solr.cloud.OverseerAutoReplicaFailoverThread.doWork(OverseerAutoReplicaFailoverThread.java:153)
> 	at org.apache.solr.cloud.OverseerAutoReplicaFailoverThread.run(OverseerAutoReplicaFailoverThread.java:132)
> 	at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.InterruptedException: sleep interrupted
> 	at java.lang.Thread.sleep(Native Method)
> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryDelay(ZkCmdExecutor.java:108)
> 	at org.apache.solr.common.cloud.ZkCmdExecutor.retryOperation(ZkCmdExecutor.java:76)
> 	at org.apache.solr.common.cloud.SolrZkClient.exists(SolrZkClient.java:308)
> 	at org.apache.solr.common.cloud.ZkStateReader.getClusterProps(ZkStateReader.java:731)
> 	... 3 more
> {code}
> So I audited ZKStateReader and found a couple of places where an InterruptedException
was caught but the interrupt flag wasn't set back.



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