Hi ALL

  I start the  Balancer on the HDFS Federation,however it comes an error:
java.net.ConnectException: Call From Hadoop01/10.167.14.221 to
Hadoop01:8020 failed on connection exception: java.net.ConnectException:
Connection refused; For more details see:
http://wiki.apache.org/hadoop/ConnectionRefused.  Exiting ...
Balancing took 11.163 seconds

* How Can i solve this.*
*
*
By the way,I have done what explained on the
http://wiki.apache.org/hadoop/ConnectionRefused  when i build my basic and
original HDFS cluster.So i think the above error maybe because of another
reasons.

thanks

Regards.

Hi .
  Sorry to bother you againt.

  I need to close this question  by myself.
  Here is my core-site.xml:
  ******************************************************************
  <configuration>
   <property>
   <name>fs.default.name</name>
   <value>hdfs://Hadoop01:8020</value>
  </property>
 </configuration>
  ******************************************************************
 my hdfs-site.xml:
 *********************************************************************
<configuration>
    <property>
       <name>dfs.nameservices</name>
       <value>ns1,ns2</value>
   </property>
   <property>
       <name>dfs.namenode.rpc-address.ns1</name>
      <value>Hadoop01:8040</value>
   </property>
.... Other common configuration ...
</configuration>
**********************************************************************

When start the  balancer,the script using the   fs.default.name of
core-site.xml
by defulat.
according to hdfs-site.xml,the port 8020 does no start.So it goes fo fail
when i start the balancer usig the port 8020 of core-site.xml.

So the  ports of  fs.default.name and dfs.namenode.rpc-address.<nameserviceid>
shoud be consistent.
Thanks

Regards

2013/2/24 YouPeng Yang <[EMAIL PROTECTED]>

> Hi ALL
>
>   I start the  Balancer on the HDFS Federation,however it comes an error:
> java.net.ConnectException: Call From Hadoop01/10.167.14.221 to
> Hadoop01:8020 failed on connection exception: java.net.ConnectException:
> Connection refused; For more details see:
> http://wiki.apache.org/hadoop/ConnectionRefused.  Exiting ...
> Balancing took 11.163 seconds
>
> * How Can i solve this.*
> *
> *
> By the way,I have done what explained on the
> http://wiki.apache.org/hadoop/ConnectionRefused  when i build my basic
> and original HDFS cluster.So i think the above error maybe because of
> another reasons.
>
> thanks
>
> Regards.
>
>

Hi,

A few points:

- The property "fs.default.name" has been deprecated in favor of the
newer name "fs.defaultFS".
- When using nameservice IDs, you shouldn't rely on the RPC address.
That is, your fs.defaultFS should instead simply be "hdfs://ns1", and
the config will load the right RPC that is bound to that NS
automatically from the hdfs-site.xml.

On Mon, Feb 25, 2013 at 10:35 AM, YouPeng Yang
<[EMAIL PROTECTED]> wrote:
> Hi .
>   Sorry to bother you againt.
>
>   I need to close this question  by myself.
>   Here is my core-site.xml:
>   ******************************************************************
>   <configuration>
>    <property>
>    <name>fs.default.name</name>
>    <value>hdfs://Hadoop01:8020</value>
>   </property>
>  </configuration>
>   ******************************************************************
>  my hdfs-site.xml:
>  *********************************************************************
> <configuration>
>     <property>
>        <name>dfs.nameservices</name>
>        <value>ns1,ns2</value>
>    </property>
>    <property>
>        <name>dfs.namenode.rpc-address.ns1</name>
>       <value>Hadoop01:8040</value>
>    </property>
> .... Other common configuration ...
> </configuration>
> **********************************************************************
>
> When start the  balancer,the script using the   fs.default.name of
> core-site.xml by defulat.
> according to hdfs-site.xml,the port 8020 does no start.So it goes fo fail
> when i start the balancer usig the port 8020 of core-site.xml.
>
> So the  ports of  fs.default.name and
> dfs.namenode.rpc-address.<nameserviceid> shoud be consistent.
>
>
> Thanks
>
> Regards
>
>
>
>
>
> 2013/2/24 YouPeng Yang <[EMAIL PROTECTED]>
>>
>> Hi ALL
>>
>>   I start the  Balancer on the HDFS Federation,however it comes an error:
>> java.net.ConnectException: Call From Hadoop01/10.167.14.221 to
>> Hadoop01:8020 failed on connection exception: java.net.ConnectException:
>> Connection refused; For more details see:
>> http://wiki.apache.org/hadoop/ConnectionRefused.  Exiting ...
>> Balancing took 11.163 seconds
>>
>>  How Can i solve this.
>>
>> By the way,I have done what explained on the
>> http://wiki.apache.org/hadoop/ConnectionRefused  when i build my basic and
>> original HDFS cluster.So i think the above error maybe because of another
>> reasons.
>>
>> thanks
>>
>> Regards.
>>
>

--
Harsh J