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Posted to mapreduce-issues@hadoop.apache.org by "Todd Lipcon (Created) (JIRA)" <ji...@apache.org> on 2012/03/01 02:21:56 UTC
[jira] [Created] (MAPREDUCE-3948) proxy throws UnknownHostException
when following link shortly after job submission
proxy throws UnknownHostException when following link shortly after job submission
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Key: MAPREDUCE-3948
URL: https://issues.apache.org/jira/browse/MAPREDUCE-3948
Project: Hadoop Map/Reduce
Issue Type: Bug
Components: resourcemanager, webapps
Affects Versions: 0.24.0, 0.23.2
Reporter: Todd Lipcon
Priority: Minor
I submitted a job and then clicked on the link from the console quickly, before the job began to run. I saw the following exception:
java.net.UnknownHostException: N
...
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServlet.proxyLink(WebAppProxyServlet.java:148)
at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServlet.doGet(WebAppProxyServlet.java:269)
Assumedly this is because the URL is stored as "N/A" instead of a true null value.
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[jira] [Commented] (MAPREDUCE-3948) proxy throws
UnknownHostException when following link shortly after job submission
Posted by "Robert Joseph Evans (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/MAPREDUCE-3948?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13223391#comment-13223391 ]
Robert Joseph Evans commented on MAPREDUCE-3948:
------------------------------------------------
It looks like MAPREDUCE-3687 fixed this issue, but the error message returned by the 404 from it may not be ideal for this case. Perhaps we should just change the error message returned to be more generic.
> proxy throws UnknownHostException when following link shortly after job submission
> ----------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3948
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3948
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: resourcemanager, webapps
> Affects Versions: 0.24.0, 0.23.2
> Reporter: Todd Lipcon
> Priority: Minor
>
> I submitted a job and then clicked on the link from the console quickly, before the job began to run. I saw the following exception:
> java.net.UnknownHostException: N
> ...
> at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServlet.proxyLink(WebAppProxyServlet.java:148)
> at org.apache.hadoop.yarn.server.webproxy.WebAppProxyServlet.doGet(WebAppProxyServlet.java:269)
> Assumedly this is because the URL is stored as "N/A" instead of a true null value.
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