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From praveenesh kumar <praveen...@gmail.com>
Subject Re: SecondaryNameNode not connecting to NameNode : PriviledgedActionException
Date Mon, 04 Jun 2012 11:14:54 GMT
I am not sure what could be the exact issue but when configuring secondary
NN to NN, you need to tell your SNN where the actual NN resides.
Try adding - dfs.http.address on your secondary namenode machine having
value as <NN:port> on hdfs-site.xml
Port should be on which your NN url is opening - means your NN web browser
http port.

Regards,
Praveenesh
On Mon, Jun 4, 2012 at 4:37 PM, <ramon.pin@accenture.com> wrote:

> Hello. I'm facing a issue when trying to configure my SecondaryNameNode on
> a different machine than my NameNode. When both are on the same machine
> everything works fine but after moving the secondary to a new machine I get:
>
> 2012-05-28 09:57:36,832 ERROR
> org.apache.hadoop.security.UserGroupInformation: PriviledgedActionException
> as:hadoop cause:java.net.ConnectException: Connection refused
> 2012-05-28 09:57:36,832 ERROR
> org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode: Exception in
> doCheckpoint:
> 2012-05-28 09:57:36,834 ERROR
> org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode:
> java.net.ConnectException: Connection refused
>        at java.net.PlainSocketImpl.socketConnect(Native Method)
>        at
> java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:327)
>        at
> java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:191)
>        at
> java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:180)
>        at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384)
>        at java.net.Socket.connect(Socket.java:546)
>        at java.net.Socket.connect(Socket.java:495)
>        at sun.net.NetworkClient.doConnect(NetworkClient.java:178)
>        at sun.net.www.http.HttpClient.openServer(HttpClient.java:409)
>        at sun.net.www.http.HttpClient.openServer(HttpClient.java:530)
>        at sun.net.www.http.HttpClient.<init>(HttpClient.java:240)
>        at sun.net.www.http.HttpClient.New(HttpClient.java:321)
>        at sun.net.www.http.HttpClient.New(HttpClient.java:338)
>        at
> sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:935)
>        at
> sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:876)
>        at
> sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:801)
>
> Is there any configuration I'm missing? At this point my mapred-site.xml
> is very simple just:
>
> <?xml version="1.0"?>
> <?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
> <configuration>
>  <property>
>    <name>mapred.job.tracker</name>
>    <value>hadoop00:9001</value>
>  </property>
>  <property>
>    <name>mapred.system.dir</name>
>    <value>/home/hadoop/mapred/system</value>
>  </property>
>  <property>
>    <name>mapred.local.dir</name>
>    <value>/home/hadoop/mapred/local</value>
>  </property>
>  <property>
>    <name>mapred.jobtracker.taskScheduler</name>
>    <value>org.apache.hadoop.mapred.FairScheduler</value>
>  </property>
>  <property>
>    <name>mapred.fairscheduler.allocation.file</name>
>    <value>/home/hadoop/hadoop/conf/fairscheduler.xml</value>
>  </property>
> </configuration>
>
>
>
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