[ 
https://issues.apache.org/jira/browse/HADOOP-1638?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Stu Hood updated HADOOP-1638:
-----------------------------

    Description: 
With a release package of Hadoop 0.13.0 or with latest SVN, the Hadoop 
contrib/ec2 scripts fail to start Hadoop correctly. After working around issues 
HADOOP-1634 and HADOOP-1635, and setting up a DynDNS address pointing to the 
master's IP, the ec2/bin/start-hadoop script completes.

But the cluster is unusable because the namenode and tasktracker have not 
started successfully. Looking at the namenode log on the master reveals the 
following error:
{quote}
2007-07-19 16:54:53,156 ERROR org.apache.hadoop.dfs.NameNode: 
java.net.BindException: Cannot assign requested address
        at sun.nio.ch.Net.bind(Native Method)
        at 
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
        at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:186)
        at org.apache.hadoop.ipc.Server.<init>(Server.java:631)
        at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:325)
        at org.apache.hadoop.ipc.RPC.getServer(RPC.java:295)
        at org.apache.hadoop.dfs.NameNode.init(NameNode.java:164)
        at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:211)
        at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:803)
        at org.apache.hadoop.dfs.NameNode.main(NameNode.java:811)
{quote}

The master node refuses to bind to the DynDNS hostname in the generated 
hadoop-site.xml. Here is the relevant part of the generated file:
{quote}
<property>
  <name>fs.default.name</name>
  <value>blah-ec2.gotdns.org:50001</value>
</property>

<property>
  <name>mapred.job.tracker</name>
  <value>blah-ec2.gotdns.org:50002</value>
</property>
{quote}

I'll attach a patch against hadoop-trunk that fixes the issue for me, but I'm 
not sure if this issue is something that someone can fix more thoroughly.

  was:
With a release package of Hadoop 0.13.0 or with latest SVN, the Hadoop 
contrib/ec2 scripts fail to start Hadoop correctly. After working around issues 
HADOOP-1634 and HADOOP-1635, and setting up a DynDNS address pointing to the 
master's IP, the ec2/bin/start-hadoop script completes.

But the cluster is unusable because the namenode and tasktracker have not 
started successfully. Looking at the namenode log on the master reveals the 
following error:
#2007-07-19 16:54:53,156 ERROR org.apache.hadoop.dfs.NameNode: 
java.net.BindException: Cannot assign requested address
#        at sun.nio.ch.Net.bind(Native Method)
#        at 
sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
#        at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
#        at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:186)
#        at org.apache.hadoop.ipc.Server.<init>(Server.java:631)
#        at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:325)
#        at org.apache.hadoop.ipc.RPC.getServer(RPC.java:295)
#        at org.apache.hadoop.dfs.NameNode.init(NameNode.java:164)
#        at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:211)
#        at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:803)
#        at org.apache.hadoop.dfs.NameNode.main(NameNode.java:811)

The master node refuses to bind to the DynDNS hostname in the generated 
hadoop-site.xml. Here is the relevant part of the generated file:
#<property>
#  <name>fs.default.name</name>
#  <value>blah-ec2.gotdns.org:50001</value>
#</property>
#
#<property>
#  <name>mapred.job.tracker</name>
#  <value>blah-ec2.gotdns.org:50002</value>
#</property>

I'll attach a patch against hadoop-trunk that fixes the issue for me, but I'm 
not sure if this issue is something that someone can fix more thoroughly.


(fixed the confusing formatting)

The hadoop-init script gets the MASTER_HOST value correctly and places it in 
hadoop-site.xml, but the problem is that the master node will not bind to the 
MASTER_HOST value. Since this is the address that gets put in hadoop-site.xml, 
the jobtracker and namenode will not start.


> Master node unable to bind to DNS hostname
> ------------------------------------------
>
>                 Key: HADOOP-1638
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1638
>             Project: Hadoop
>          Issue Type: Bug
>          Components: contrib/ec2
>    Affects Versions: 0.13.0, 0.13.1, 0.14.0, 0.15.0
>            Reporter: Stu Hood
>            Priority: Minor
>             Fix For: 0.13.1, 0.14.0, 0.15.0
>
>         Attachments: hadoop-1638.patch
>
>
> With a release package of Hadoop 0.13.0 or with latest SVN, the Hadoop 
> contrib/ec2 scripts fail to start Hadoop correctly. After working around 
> issues HADOOP-1634 and HADOOP-1635, and setting up a DynDNS address pointing 
> to the master's IP, the ec2/bin/start-hadoop script completes.
> But the cluster is unusable because the namenode and tasktracker have not 
> started successfully. Looking at the namenode log on the master reveals the 
> following error:
> {quote}
> 2007-07-19 16:54:53,156 ERROR org.apache.hadoop.dfs.NameNode: 
> java.net.BindException: Cannot assign requested address
>         at sun.nio.ch.Net.bind(Native Method)
>         at 
> sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:119)
>         at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:59)
>         at org.apache.hadoop.ipc.Server$Listener.<init>(Server.java:186)
>         at org.apache.hadoop.ipc.Server.<init>(Server.java:631)
>         at org.apache.hadoop.ipc.RPC$Server.<init>(RPC.java:325)
>         at org.apache.hadoop.ipc.RPC.getServer(RPC.java:295)
>         at org.apache.hadoop.dfs.NameNode.init(NameNode.java:164)
>         at org.apache.hadoop.dfs.NameNode.<init>(NameNode.java:211)
>         at org.apache.hadoop.dfs.NameNode.createNameNode(NameNode.java:803)
>         at org.apache.hadoop.dfs.NameNode.main(NameNode.java:811)
> {quote}
> The master node refuses to bind to the DynDNS hostname in the generated 
> hadoop-site.xml. Here is the relevant part of the generated file:
> {quote}
> <property>
>   <name>fs.default.name</name>
>   <value>blah-ec2.gotdns.org:50001</value>
> </property>
> <property>
>   <name>mapred.job.tracker</name>
>   <value>blah-ec2.gotdns.org:50002</value>
> </property>
> {quote}
> I'll attach a patch against hadoop-trunk that fixes the issue for me, but I'm 
> not sure if this issue is something that someone can fix more thoroughly.

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