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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-5513) CacheAdmin commands fail when using . as the path
Date Tue, 19 Nov 2013 03:59:21 GMT

    [ https://issues.apache.org/jira/browse/HDFS-5513?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13826163#comment-13826163
] 

Hadoop QA commented on HDFS-5513:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12614533/hdfs-5513-1.patch
  against trunk revision .

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/5475//console

This message is automatically generated.

> CacheAdmin commands fail when using . as the path
> -------------------------------------------------
>
>                 Key: HDFS-5513
>                 URL: https://issues.apache.org/jira/browse/HDFS-5513
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: caching, tools
>    Affects Versions: 3.0.0
>            Reporter: Stephen Chu
>            Assignee: Andrew Wang
>            Priority: Minor
>         Attachments: hdfs-5513-1.patch
>
>
> The hdfs CLI commands generally accept "." as a path argument.
> e.g.
> {code}
> hdfs dfs -rm .
> hdfs dfsadmin -allowSnapshot .
> {code}
> I don't think it's very common to use the path "." but the CacheAdmin commands will fail
saying that it cannot create a Path from an empty string.
> {code}
> [schu@hdfs-c5-nfs ~]$ hdfs cacheadmin -removeDirectives -path .
> Exception in thread "main" java.lang.IllegalArgumentException: Can not create a Path
from an empty string
> 	at org.apache.hadoop.fs.Path.checkPathArg(Path.java:127)
> 	at org.apache.hadoop.fs.Path.<init>(Path.java:184)
> 	at org.apache.hadoop.hdfs.protocol.PathBasedCacheDirective$Builder.<init>(PathBasedCacheDirective.java:66)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.listPathBasedCacheDirectives(DistributedFileSystem.java:1639)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin$RemovePathBasedCacheDirectivesCommand.run(CacheAdmin.java:365)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin.run(CacheAdmin.java:82)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin.main(CacheAdmin.java:87)
> [schu@hdfs-c5-nfs ~]$ hdfs cacheadmin -addDirective -path . -pool schu
> Exception in thread "main" java.lang.IllegalArgumentException: Can not create a Path
from an empty string
> 	at org.apache.hadoop.fs.Path.checkPathArg(Path.java:127)
> 	at org.apache.hadoop.fs.Path.<init>(Path.java:184)
> 	at org.apache.hadoop.hdfs.protocol.PathBasedCacheDirective$Builder.<init>(PathBasedCacheDirective.java:66)
> 	at org.apache.hadoop.hdfs.DistributedFileSystem.addPathBasedCacheDirective(DistributedFileSystem.java:1598)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin$AddPathBasedCacheDirectiveCommand.run(CacheAdmin.java:180)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin.run(CacheAdmin.java:82)
> 	at org.apache.hadoop.hdfs.tools.CacheAdmin.main(CacheAdmin.java:87)
> {code}



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