[jira] Resolved: (HBASE-2994) RS loops forever trying to get the startcode if it's session expired

["Jean-Daniel Cryans (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-2994?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jean-Daniel Cryans resolved HBASE-2994.
---------------------------------------

    Fix Version/s:     (was: 0.20.7)
       Resolution: Duplicate

Duplicate of HBASE-2441 indeed, it'd be nice if that patch was committed.

> RS loops forever trying to get the startcode if it's session expired
> --------------------------------------------------------------------
>
>                 Key: HBASE-2994
>                 URL: https://issues.apache.org/jira/browse/HBASE-2994
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.20.6, 0.89.20100621
>            Reporter: Jean-Daniel Cryans
>
> mr_luk on IRC got this, but we still don't know how the session was expired because the log is mangled for about 13 minutes, then he sees an infinite stream of:
> {noformat}
> 2010-09-07 17:30:06,467 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to create /hbase/rs -- check quorum servers, currently=foo1:2181,foo2:2181,foo3:2181
> 2010-09-07 17:30:06,467 DEBUG org.apache.hadoop.hbase.regionserver.HRegionServer: Start code already taken, trying another one
> 2010-09-07 17:30:06,467 WARN org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to create /hbase/rs/1283873406467 znode in ZooKeeper: 
> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /hbase/rs/1283873406467
>         at java.lang.Thread.run(Unknown Source)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.run(HRegionServer.java:434)
>         at org.apache.hadoop.hbase.regionserver.HRegionServer.reportForDuty(HRegionServer.java:1338)
>         at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.writeRSLocation(ZooKeeperWrapper.java:586)
>         at org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:405)
>         at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:808)
>         at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:780)
>         at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
>         at org.apache.zookeeper.KeeperException.create(KeeperException.java:118)
> org.apache.zookeeper.KeeperException$SessionExpiredException: KeeperErrorCode = Session expired for /hbase/rs
> {noformat}
> Tagging for 0.20.7 since that stuff is got reworked in trunk.

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