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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-9344) RegionServer not shutting down upon KeeperException in open region
Date Mon, 26 Aug 2013 22:16:53 GMT
Lars Hofhansl created HBASE-9344:
------------------------------------

             Summary: RegionServer not shutting down upon KeeperException in open region
                 Key: HBASE-9344
                 URL: https://issues.apache.org/jira/browse/HBASE-9344
             Project: HBase
          Issue Type: Bug
            Reporter: Lars Hofhansl


We ran into a situation where due to a Kerberos configuration problem one of our region server
could not connect to ZK when opening a region. Instead of shutting down it continue to try
to reconnect. Eventually the master would assign the region to another region server. Each
time that region server was assigned a region it would sit there for 5 mins with the region
offline. It would have been better if the region server had shut itself down.

This is in the logs:

{quote}
2013-08-16 17:31:35,999 WARN org.apache.hadoop.hbase.zookeeper.ZKUtil: hconnection-0x2407b842ff2012d-0x2407b842ff2012d-0x2407b842ff2012d
Unable to set watcher on znode (/hbase/hbaseid)
org.apache.zookeeper.KeeperException$AuthFailedException: KeeperErrorCode = AuthFailed for
/hbase/hbaseid
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:123)
    at org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
    at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041)
    at org.apache.hadoop.hbase.zookeeper.RecoverableZooKeeper.exists(RecoverableZooKeeper.java:172)
    at org.apache.hadoop.hbase.zookeeper.ZKUtil.checkExists(ZKUtil.java:450)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.readClusterIdZNode(ClusterId.java:61)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.getId(ClusterId.java:50)
    at org.apache.hadoop.hbase.zookeeper.ClusterId.hasId(ClusterId.java:44)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.ensureZookeeperTrackers(HConnectionManager.java:616)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:882)
    at org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.locateRegion(HConnectionManager.java:857)
    at org.apache.hadoop.hbase.client.HTable.finishSetup(HTable.java:233)
    at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:173)
    at org.apache.hadoop.hbase.catalog.MetaReader.getHTable(MetaReader.java:201)
    at org.apache.hadoop.hbase.catalog.MetaReader.getMetaHTable(MetaReader.java:227)
    at org.apache.hadoop.hbase.catalog.MetaReader.getCatalogHTable(MetaReader.java:214)
    at org.apache.hadoop.hbase.catalog.MetaEditor.putToCatalogTable(MetaEditor.java:91)
    at org.apache.hadoop.hbase.catalog.MetaEditor.updateLocation(MetaEditor.java:296)
    at org.apache.hadoop.hbase.catalog.MetaEditor.updateRegionLocation(MetaEditor.java:276)
    at org.apache.hadoop.hbase.regionserver.HRegionServer.postOpenDeployTasks(HRegionServer.java:1828)
    at org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler$PostOpenDeployTasksThread.run(OpenRegionHandler.java:240)
{quote}

I think the RS should shut itself down instead.

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