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https://issues.apache.org/jira/browse/HDFS-1575?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13020481#comment-13020481
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Dmytro Molkov commented on HDFS-1575:
-------------------------------------
I guess I should also do url unencode if I fetch the value from the filename
parameter, shouldn't I?
The original patch in 1109 was fixing the problem with certain characters that
were not handled correctly when passed around in the request parameter.
Unfortunately I did not take into account the fact that we have jsp files being
used for this at the same time.
> 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
> Priority: Blocker
> Fix For: 0.22.0
>
> Attachments: HDFS-1575
>
>
> 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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