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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-4235) when outputting XML, OfflineEditsViewer can't handle some edits containing non-ASCII strings
Date Thu, 29 Nov 2012 01:21:57 GMT
Colin Patrick McCabe created HDFS-4235:
------------------------------------------

             Summary: when outputting XML, OfflineEditsViewer can't handle some edits containing
non-ASCII strings
                 Key: HDFS-4235
                 URL: https://issues.apache.org/jira/browse/HDFS-4235
             Project: Hadoop HDFS
          Issue Type: Bug
            Reporter: Colin Patrick McCabe
            Priority: Minor


It seems that when outputting XML, OfflineEditsViewer can't handle some edits containing non-ASCII
strings.

Example:

{code}
cmccabe@keter:/h> ./bin/hdfs oev -i ~/Downloads/current2/edits -o /tmp/u.xml          
                              
17:11:24,662 ERROR OfflineEditsBinaryLoader:82 - Got IOException at position 10593
Encountered exception. Exiting: SAX error: The character '�' is an invalid XML character
java.io.IOException: SAX error: The character '�' is an invalid XML character
        at org.apache.hadoop.hdfs.tools.offlineEditsViewer.XmlEditsVisitor.visitOp(XmlEditsVisitor.java:119)
        at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsBinaryLoader.loadEdits(OfflineEditsBinaryLoader.java:78)
        at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.go(OfflineEditsViewer.java:142)
        at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.run(OfflineEditsViewer.java:228)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
        at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
        at org.apache.hadoop.hdfs.tools.offlineEditsViewer.OfflineEditsViewer.main(OfflineEditsViewer.java:237)
{code}

Probably, we forgot to properly escape and/or re-encode a filename before putting it into
the XML.  The other processors (stats, binary) don't have this problem, so it is purely an
XML encoding issue.

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