Hi Folks -

 

I am experiencing "ConnectionLoss for /hbase" when I run a mapreduce job
with around 100 mappers and TableInputFormat. I am running a fully
distributed cluster, letting hbase manage zookeeper. I am running HBase
90.1. Is the solution, per this jira,
https://issues.apache.org/jira/browse/HBASE-3773 , to increase
hbase.zookeeper.property.maxClientCnxns to 32k?

 

This is the stack trace that I get.

 

Caused by: org.apache.hadoop.hbase.ZooKeeperConnectionException:
org.apache.hadoop.hbase.ZooKeeperConnectionException:
org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /hbase

        at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementat
ion.getZooKeeperWatcher(HConnectionManager.java:988)

        at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementat
ion.setupZookeeperTrackers(HConnectionManager.java:301)

        at
org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementat
ion.<init>(HConnectionManager.java:292)

        at
org.apache.hadoop.hbase.client.HConnectionManager.getConnection(HConnect
ionManager.java:155)

        at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:167)

        at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:145)

 

 

-geoff

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