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https://issues.apache.org/jira/browse/HADOOP-7602?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13095547#comment-13095547
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Daryn Sharp commented on HADOOP-7602:
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I was actually working on this same problem... The issue is {{TokenCache}} is
attempting to get tokens for a non-server based authority.
{{buildDTServiceName}} is documented as returning ip:port. It's only called by
a {{FileSystem}} to set its token's service.
Having {{buildDTServiceName}} return an empty string to satisfy bad behavior in
the {{TokenCache}} doesn't feel right. I'd prefer an exception like {{new
IllegalArgumentException( uri + "does not have a server-based authority)}} to
guard against accidental invocation in the future.
Then back in {{TokenCache.obtainTokensForNamenodesInternal}}, add:
{code}
if (fs.getUri().getAuthority() == null) continue;
{code}
Otherwise the empty string would cause it to go through the machinations of
trying to get a token.
(Note: the need for this check should soon go away because the fixing of token
renewal causes the {{TokenCache}} to only request tokens for a {{FileSystem}}
that implements tokens)
> wordcount, sort etc on har files fails with NPE
> -----------------------------------------------
>
> Key: HADOOP-7602
> URL: https://issues.apache.org/jira/browse/HADOOP-7602
> Project: Hadoop Common
> Issue Type: Bug
> Affects Versions: 0.20.205.0, 0.20.206.0
> Reporter: John George
> Assignee: John George
> Fix For: 0.20.205.0
>
> Attachments: hadoop-7602.patch
>
>
> wordcount, sort etc on har files fails with
> NPE@createSocketAddr(NetUtils.java:137).
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