I abandoned HADOOP-1202 because people didn't seem to see any value in it,
and I changed the way I use hadoop on ec2 around the same time.  You're
welcome to pick it up and port the patch to trunk; it shouldn't be too much
work.

-Michael

On 7/20/07 4:21 PM, "Fredrik Hedberg (JIRA)" <[EMAIL PROTECTED]> wrote:

> 
>     [ 
> https://issues.apache.org/jira/browse/HADOOP-1638?page=com.atlassian.jira.plug
> in.system.issuetabpanels:comment-tabpanel#action_12514370 ]
> 
> Fredrik Hedberg commented on HADOOP-1638:
> -----------------------------------------
> 
> There doesn't seem to be much action around HADOOP-1202, but it should make
> this a non-issue.
> 
>> 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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