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HBase, mail # user - Re: "HBase is able to connect to ZooKeeper but the connection closes immediately..."


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Re: "HBase is able to connect to ZooKeeper but the connection closes immediately..."
Kevin O'dell 2013-03-12, 20:51
Hi Ryan,

  Make sure you have the correct client configurations on the node you are
trying to access from.  You will need the hbase-site and the zoo.cfg to
make this work.

On Tue, Mar 12, 2013 at 4:47 PM, Ryan Compton <[EMAIL PROTECTED]>wrote:

> When I try to access HBase from a cluster node which is not the
> zookeeper server I have the following problem:
>
> -bash-3.2$ hostname
> node33
> -bash-3.2$ hbase shell
> HBase Shell; enter 'help<RETURN>' for list of supported commands.
> Type "exit<RETURN>" to leave the HBase Shell
> Version 0.90.4-cdh3u3, r, Thu Jan 26 10:13:36 PST 2012
>
> hbase(main):001:0> status
>
> ERROR: org.apache.hadoop.hbase.ZooKeeperConnectionException: HBase is
> able to connect to ZooKeeper but the connection closes immediately.
> This could be a sign that the server has too many connections (30 is
> the default). Consider inspecting your ZK server logs for that error
> and then make sure you are reusing HBaseConfiguration as often as you
> can. See HTable's javadoc for more information.
>
> Here is some help for this command:
> Show cluster status. Can be 'summary', 'simple', or 'detailed'. The
> default is 'summary'. Examples:
>
>   hbase> status
>   hbase> status 'simple'
>   hbase> status 'summary'
>   hbase> status 'detailed'
>
>
> hbase(main):002:0>
>
>
> Now, if I log into the zookeeper server I can do:
>
> -bash-3.2$ hostname
> master
> -bash-3.2$ hbase shell
> HBase Shell; enter 'help<RETURN>' for list of supported commands.
> Type "exit<RETURN>" to leave the HBase Shell
> Version 0.90.4-cdh3u3, r, Thu Jan 26 10:13:36 PST 2012
>
> hbase(main):001:0> status
> 34 servers, 0 dead, 59.0882 average load
>
> hbase(main):002:0>
>
>
> What's going on? I suspect that HBase should be able to read/write
> from any node that I can modify hdfs from.
>

--
Kevin O'Dell
Customer Operations Engineer, Cloudera
+
Ryan Compton 2013-03-12, 20:42
+
Ted Yu 2013-03-12, 21:08
+
Ryan Compton 2013-03-12, 21:20
+
Ralf R. Kotowski 2013-08-09, 19:43