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From 姜晓东 <jxd...@gmail.com>
Subject SecondaryNameNode reports "Address Already in use"
Date Thu, 13 Jan 2011 03:40:15 GMT

Hi,all,
  
*I have created a hadoop cluster on 2 hosts. When i enter "start-dfs.sh"
on namenode host, the console shows this log:*
------------------------
starting namenode, logging to
/usr/local/hadoop-0.20.2/bin/../logs/hadoop-root-namenode-jiangxd-pc.out
localhost: starting datanode, logging to
/usr/local/hadoop-0.20.2/bin/../logs/hadoop-root-datanode-jiangxd-pc.out
dev1: starting datanode, logging to
/usr/local/hadoop-0.20.2/bin/../logs/hadoop-root-datanode-sec-dev1.dev.sd.aliyun.com.out
localhost: starting secondarynamenode, logging to
/usr/local/hadoop-0.20.2/bin/../logs/hadoop-root-secondarynamenode-jiangxd-pc.out
localhost: Exception in thread "main" java.net.BindException: Address
already in use
localhost:     at sun.nio.ch.Net.bind(Native Method)
localhost:     at
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
localhost:     at
sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
localhost:     at
org.mortbay.jetty.nio.SelectChannelConnector.open(SelectChannelConnector.java:216)
localhost:     at
org.apache.hadoop.http.HttpServer.start(HttpServer.java:425)
localhost:     at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.initialize(SecondaryNameNode.java:165)
localhost:     at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.<init>(SecondaryNameNode.java:115)
localhost:     at
org.apache.hadoop.hdfs.server.namenode.SecondaryNameNode.main(SecondaryNameNode.java:469)
--------------------------

*My configuration file is as following:*
--------------------------
jiangxd-pc conf # cat core-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>
<property>
    <name>fs.default.name</name>
    <value>hdfs://localhost</value>
</property>

</configuration>
jiangxd-pc conf # cat mapred-site.xml
<?xml version="1.0"?>
<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>

<!-- Put site-specific property overrides in this file. -->

<configuration>
<property>
        <name>mapred.job.tracker</name>
        <value>localhost:8001</value>
</property>

</configuration>

--------------------------

Anyone help me?



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