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From Jay Wilson <registrat...@circle-cross-jn.com>
Subject HBASE -- Session Expire ?
Date Wed, 04 Jul 2012 00:19:28 GMT
I have reread the sections in the O'Reilly HBase book on cluster
configuration and troubleshooting and I am still getting "session
expired" after X number of minutes. X being anywhere from 15 to 20 minutes.

There is 0 load on the cluster and it's using a dedicated isolated
network.  No jobs running just the Hadoop/Hbase java processes.

I have separated the Hadoop and HBase processes as follows:

devrackA-00 (NameNode)
devrackA-01 (SecondaryNameNode)
devrackA-03 (HQuorumPeer + HMaster)
devrackA-04 (HQuorumPeer)
devrackA-05 (HQuorumPeer)
devrackA-06 (HRegionServer)
devrackA-07
   to        (DataNode)
devrackA-20
devrackB-00
   to        (DataNode)
devrackB-06
devrackB-07 (HRegionServer)
devrackB-08 (HRegionServer)
devrackB-09
   to        (DataNode)
devrackB-20

I did have DataNode on my HQuorumPeers and HRegionServers, but I have
excluded them and verified they are excluded:

Name: devrackA-03
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969


Name: devrackA-04
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969


Name: devrackA-05
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969

Name: devrackA-06
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969


Name: devrackB-07
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969


Name: devrackB-08
Decommission Status : Normal
Configured Capacity: 0 (0 KB)
DFS Used: 0 (0 KB)
Non DFS Used: 0 (0 KB)
DFS Remaining: 0(0 KB)
DFS Used%: 100%
DFS Remaining%: 0%
Last contact: Wed Dec 31 16:00:00 PST 1969

I must be missing a fundamental setting.  Thoughts?

Thank You
---
Jay Wilson

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