hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Amandeep Khurana <ama...@gmail.com>
Subject Re: SessionExpiredException: KeeperErrorCode = Session expired for /hbase
Date Mon, 12 Oct 2009 05:54:27 GMT
This shouldnt be causing your jobs to fail... These are just session expiry
warnings. New nodes will get created in zk and the jobs shouldnt be
interrupted.


On Sun, Oct 11, 2009 at 10:50 PM, Something Something <
luckyguy2050@yahoo.com> wrote:

> Occasionally, I see the following exception in the log.  The severity of
> this is 'WARN', so I am not sure if my MapReduce job is successful.  Can
> this message be ignored?  Sounds 'SEVERE' to me.
>
> Note:  I am running over 15000 jobs sequentially.  This happens
> occasionally after about 8000 jobs are processed, so it's a bit hard to
> debug.
>
> I guess, I could look at the source code, and see what this message means.
> But I am being lazy :)  Thanks in advance for your advice.
>
>
> 09/10/11 22:33:03 WARN zookeeper.ZooKeeperWrapper: Failed to create /hbase
> -- check quorum servers,
> currently=localhost:2181org.apache.zookeeper.KeeperException$SessionExpiredException:
> KeeperErrorCode = Session expired for /hbase        at
>  org.apache.zookeeper.KeeperException.create(KeeperException.java:118)
>    at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
>      at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:522)        at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureExists(ZooKeeperWrapper.java:342)
>      at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.ensureParentExists(ZooKeeperWrapper.java:365)
>      at
> org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.checkOutOfSafeMode(ZooKeeperWrapper.java:478)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:903)
>      at
>  org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:573)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:549)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:623)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:582)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:549)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:623)
>      at
>  org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:586)
>      at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:549)
>      at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:125)
>  at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:103)
>
>
>
>

Mime
  • Unnamed multipart/alternative (inline, None, 0 bytes)
View raw message