Hi,
just double check that you use the correct IP / hostname by comparing to what
"ifconfig" output
and that hostname is resolved to correct ip by arp honeywel-4a7632 or ping
honeywel-4a7632.
I recommend to uncomment the IPV6 line in your hosts files because I
experienced trouble with such entries and hadoop.
For example my hosts file (anonymized) used on all machines of a stable HBase
cluster looks as easy as that:
127.0.0.1 localhost.localdomain localhost
195.55.55.555 hostname.domain.com hostname
As you were able to create tables and so on the hbase master seems to work
otherwise there would be
evidence in the hbase logs at startup..
I expect it's a network accessibility issue caused by a firewall setting.
So maybe try (for test only) turning of iptables:
service iptables save
service iptables stop
chkconfig iptables off
Good Luck
Chris
Von: AnandaVelMurugan Chandra Mohan <[email protected]>
An: [email protected]
Gesendet: 15:46 Dienstag, 29.Mai 2012
Betreff: Re: Issues with Java sample for connecting to remote Hbase
Thanks for the response. It still
errors out.
On Tue, May 29, 2012 at 7:05 PM, Mohammad Tariq <[email protected]> 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
> <[email protected]> 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
