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From N Keywal <nkey...@gmail.com>
Subject Re: Issues with Java sample for connecting to remote Hbase
Date Tue, 29 May 2012 14:03:22 GMT
>From http://hbase.apache.org/book/os.html:
HBase expects the loopback IP address to be 127.0.0.1. Ubuntu and some
other distributions, for example, will default to 127.0.1.1 and this
will cause problems for you.

It worths reading the whole section ;-).

You also don't need to set the master address: it will be read from
zookeeper. I.e. you can remove this line from your client code:
>> >               config.set("hbase.master", "10.78.32.131:60010");

N.

On Tue, May 29, 2012 at 3:46 PM, AnandaVelMurugan Chandra Mohan
<ananthu2050@gmail.com> wrote:
> Thanks for the response. It still errors out.
>
> On Tue, May 29, 2012 at 7:05 PM, Mohammad Tariq <dontariq@gmail.com> wrote:
>
>> change the name from "localhost" to something else in the line
>> "10.78.32.131    honeywel-4a7632    localhost" and see if it works
>>
>> Regards,
>>     Mohammad Tariq
>>
>>
>> On Tue, May 29, 2012 at 6:59 PM, AnandaVelMurugan Chandra Mohan
>> <ananthu2050@gmail.com> wrote:
>> > I have HBase version 0.92.1 running in standalone mode. I created a table
>> > and added few rows using hbase shell. Now I am developing a standalone
>> java
>> > application to connect to Hbase and retrieve the data from the table.
>> > *
>> > This is the code I am using
>> > *
>> >              Configuration config = HBaseConfiguration.create();
>> >               config.clear();
>> >               config.set("hbase.zookeeper.quorum", "10.78.32.131");
>> >               config.set("hbase.zookeeper.property.clientPort","2181");
>> >               config.set("hbase.master", "10.78.32.131:60010");
>> >
>> >               HBaseAdmin.checkHBaseAvailable(config);
>> >
>> >
>> >               // This instantiates an HTable object that connects you
to
>> > the "myTable"
>> >               // table.
>> >               HTable table = new HTable(config, "asset");
>> >
>> >               Get g = new Get(Bytes.toBytes("APU 331-350"));
>> >               Result r = table.get(g);
>> >
>> > *This is the content of my /etc/hosts file*
>> >
>> > #127.0.0.1    localhost.localdomain    localhost
>> > #10.78.32.131   honeywel-4a7632
>> > #127.0.1.1    honeywel-4a7632
>> > ::1    honeywel-4a7632    localhost6.localdomain6    localhost6
>> > 10.78.32.131    honeywel-4a7632    localhost
>> > *
>> > This is part of my error stack trace*
>> >
>> > 12/05/29 18:53:33 INFO
>> client.HConnectionManager$HConnectionImplementation:
>> > getMaster attempt 0 of 1 failed; no more retrying.
>> > java.net.ConnectException: Connection refused: no further information
>> >    at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
>> >    at sun.nio.ch.SocketChannelImpl.finishConnect(Unknown Source)
>> >    at
>> >
>> org.apache.hadoop.net.SocketIOWithTimeout.connect(SocketIOWithTimeout.java:206)
>> >    at org.apache.hadoop.net.NetUtils.connect(NetUtils.java:489)
>> >    at
>> >
>> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupConnection(HBaseClient.java:328)
>> >    at
>> >
>> org.apache.hadoop.hbase.ipc.HBaseClient$Connection.setupIOstreams(HBaseClient.java:362)
>> >    at
>> >
>> org.apache.hadoop.hbase.ipc.HBaseClient.getConnection(HBaseClient.java:1045)
>> >    at org.apache.hadoop.hbase.ipc.HBaseClient.call(HBaseClient.java:897)
>> >    at
>> >
>> org.apache.hadoop.hbase.ipc.WritableRpcEngine$Invoker.invoke(WritableRpcEngine.java:150)
>> >    at $Proxy5.getProtocolVersion(Unknown Source)
>> >    at
>> >
>> org.apache.hadoop.hbase.ipc.WritableRpcEngine.getProxy(WritableRpcEngine.java:183)
>> >    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:303)
>> >    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:280)
>> >    at org.apache.hadoop.hbase.ipc.HBaseRPC.getProxy(HBaseRPC.java:332)
>> >    at
>> >
>> org.apache.hadoop.hbase.client.HConnectionManager$HConnectionImplementation.getMaster(HConnectionManager.java:642)
>> >    at
>> org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:106)
>> >    at
>> >
>> org.apache.hadoop.hbase.client.HBaseAdmin.checkHBaseAvailable(HBaseAdmin.java:1553)
>> >    at hbaseMain.main(hbaseMain.java:27)
>> > 12/05/29 18:53:33 INFO
>> client.HConnectionManager$HConnectionImplementation:
>> > Closed zookeeper sessionid=0x13798c3ce190003
>> > 12/05/29 18:53:33 INFO zookeeper.ZooKeeper: Session: 0x13798c3ce190003
>> > closed
>> > 12/05/29 18:53:33 INFO zookeeper.ClientCnxn: EventThread shut down
>> >
>> > Can some one help me fix this? Thanks a lot.
>> > --
>> > Regards,
>> > Anand
>>
>
>
>
> --
> Regards,
> Anand

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