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https://issues.apache.org/jira/browse/HBASE-1651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730674#action_12730674
]
Nitay Joffe commented on HBASE-1651:
------------------------------------
Was chatting with Stack about this. This brings up a good point, which is that
we don't cache ZK results _anywhere_. The assumption we've had when writing all
of this stuff was that we already did caching, so it should still work. For
example, with the ROOT region, we used to get it from the master. I assumed the
code previously would get it once, and only query the master for it again when
it couldn't talk to ROOT anymore. So, by replacing it with ZK it should've
still done the same caching. Clearly, either that logic wasn't right, or I
broke it when we put the ZK stuff in. We should check all of our ZK queries, I
have a feeling this is not the only place we'll find such a thing.
Good catch Ryan.
> client is broken, it requests ROOT region location from ZK too much
> -------------------------------------------------------------------
>
> Key: HBASE-1651
> URL: https://issues.apache.org/jira/browse/HBASE-1651
> Project: Hadoop HBase
> Issue Type: Bug
> Affects Versions: 0.20.0
> Reporter: ryan rawson
> Assignee: stack
> Priority: Blocker
> Fix For: 0.20.0
>
>
> something bad happened to the client, now it requests the ROOT region
> location literally a hundred times a second:
> 09/07/13 18:39:59 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:00 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
> 09/07/13 18:40:01 DEBUG zookeeper.ZooKeeperWrapper: Read ZNode
> /hbase/root-region-server got 10.20.20.158:60020
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