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From Jean-Marc Spaggiari <jean-m...@spaggiari.org>
Subject Re: HBase Java client - unknown host: localhost.localdomain
Date Sun, 25 Aug 2013 12:28:40 GMT
Hi,

Do you have your host+ip in your host file?

JM

2013/8/25 Shengjie Min <shengjie.min@gmail.com>

> Hi guys,
>
> I am running cloudera quick start vm:
>
> Versions:
>
> Hadoop: 2.0.0-cdh4.3.1
>
> HBase: 0.94.6-cdh4.3.1
>
> Here is my little remote HBase Java client(HbaseClient.java), all it does
> is:
>
> public static void main(String[] args) throws IOException {
>     Configuration config = HBaseConfiguration.create();
>     HTable table = new HTable(config, "s1");
>     System.out.println(table.getTableName());
> }
>
> hbase-site.xml:
>
> <property>
>     <name>hbase.rootdir</name>
>     <value>hdfs://172.16.144.150:8020/hbase</value>
>   </property>
>   <property>
>     <name>zookeeper.znode.parent</name>
>     <value>/hbase</value>
>   </property>
>   .......
>   <property>
>     <name>zookeeper.znode.rootserver</name>
>     <value>root-region-server</value>
>   </property>
>   <property>
>     <name>hbase.zookeeper.quorum</name>
>     <value>172.16.144.150</value>
>   </property>
>
> When I run my java client, I get the error unknown host:
> localhost.localdomain:
>
> Initiating client connection, connectString=172.16.144.150:2181
> sessionTimeout=60000 watcher=hconnection
> zookeeper.disableAutoWatchReset is false
> The identifier of this process is 41939@smin-MacBook-Pro.local
> Opening socket connection to server cloudera/172.16.144.150:2181. Will
> not attempt to authenticate using SASL (unknown error)
> Socket connection established to cloudera/172.16.144.150:2181,
> initiating session
> Session establishment request sent on cloudera/172.16.144.150:2181
> Session establishment complete on server cloudera/172.16.144.150:2181,
> sessionid = 0x14076b058850045, negotiated timeout = 60000
> hconnection Received ZooKeeper Event, type=None, state=SyncConnected,
> path=null
> hconnection-0x14076b058850045 connected
>
> locateRegionInMeta parentTable=-ROOT-,
> metaLocation={region=-ROOT-,,0.70236052,
> hostname=localhost.localdomain, port=60020},
> attempt=0 of 10 failed; retrying after sleep of 1000 because:
> unknown host: localhost.localdomain
>
> Reading reply sessionid:0x14076b058850045, packet:: clientPath:null
> serverPath:null finished:false header:: 17,3  replyHeader:: 17,460,0
> request:: '/hbase,F  response::
> s{20,20,1376375496826,1376375496826,0,32,0,0,0,12,430}
> Reading reply sessionid:0x14076b058850045, packet:: clientPath:null
> serverPath:null finished:false header:: 18,4  replyHeader:: 18,460,0
> request:: '/hbase/root-region-server,T  response::
>
> #ffffffff0001b3635323630406c6f63616c686f73742e6c6f63616c646f6d61696e6c6f63616c686f73742e6c6f63616c646f6d61696e2c36303032302c31333737333538373930303037,s{430,430,1377358805621,1377358805621,0,0,0,0,73,0,430}
> hconnection-0x14076b058850045 Retrieved 41 byte(s) of data from znode
> /hbase/root-region-server and set watcher;
> localhost.localdomain,60020,1...
> Looked up root region location,
>
> connection=org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation@68a7a3a7
> ;
> serverName=localhost.localdomain,60020,1377358790007
>
> locateRegionInMeta parentTable=.META., metaLocation=null, attempt=2 of
> 10 failed;
> retrying after sle
>
> Any ideas?
>
> Thanks,
>
> SHengjie
>

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