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From "Aaron T. Myers (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-1575) viewing block from web UI broken
Date Wed, 18 May 2011 22:20:47 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13035790#comment-13035790

Aaron T. Myers commented on HDFS-1575:

bq. Since these changes are just in the java, it seems we could have some true unit tests
for it?

Sure could. I'll work on that.

bq. Also, when concatenating "val" in the getUrlParam functions, shouldn't it be encoded?

Maybe. I'm not sure that the URL encoding should be done at this level. Regardless, it has
the potential to break a lot of stuff via double-encoding, so I'd rather do that as part of
a separate JIRA, if it's alright with you.

> viewing block from web UI broken
> --------------------------------
>                 Key: HDFS-1575
>                 URL: https://issues.apache.org/jira/browse/HDFS-1575
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Todd Lipcon
>            Assignee: Aaron T. Myers
>            Priority: Blocker
>             Fix For: 0.22.0
>         Attachments: HDFS-1575, hdfs-1575-trunk.0.patch
> DatanodeJspHelper seems to expect the file path to be in the "path info" of the HttpRequest,
rather than in a parameter. I see the following exception when visiting the URL {{http://localhost.localdomain:50075/browseBlock.jsp?blockId=5006108823351810567&blockSize=20&genstamp=1001&filename=%2Fuser%2Ftodd%2Fissue&datanodePort=50010&namenodeInfoPort=50070}}
> java.io.FileNotFoundException: File does not exist: /
> 	at org.apache.hadoop.hdfs.server.namenode.FSNamesystem.getBlockLocationsInternal(FSNamesystem.java:834)
> ...
> 	at org.apache.hadoop.hdfs.server.datanode.DatanodeJspHelper.generateFileDetails(DatanodeJspHelper.java:258)
> 	at org.apache.hadoop.hdfs.server.datanode.browseBlock_jsp._jspService(browseBlock_jsp.java:79)
> 	at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)

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