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  1. Hadoop HDFS
  2. HDFS-1109

HFTP and URL Encoding

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Details

    • Bug
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 0.20.1, 0.20.2, 0.20.3, 0.21.0, 0.22.0
    • 0.22.0
    • contrib/hdfsproxy, datanode
    • None
    • Incompatible change, Reviewed

    Description

      We just saw this error happen in our cluster. If there is a file that has a "+" sign in the name it is not readable through HFTP protocol.
      The problem is when we are reading a file with HFTP we are passing a name of the file as a parameter in request and + gets undecoded into space on the server side. So the datanode receiving the streamFile request tries to access a file with space instead of + in the name and doesn't find that file.

      The proposed solution is to pass the filename as a part of URL as with all the other HFTP commands, since this is the only place where it is not being treated this way. Are there any objections to this?

      Attachments

        1. HDFS-1109.patch
          11 kB
          Dmytro Molkov
        2. HDFS-1109.2.patch
          8 kB
          Dmytro Molkov
        3. HDFS-1109.2_y0.20.1xx.patch
          5 kB
          Tsz-wo Sze
        4. HDFS-1109.2_y0.20.1xx_incremental.patch
          2 kB
          Rohini Palaniswamy

        Issue Links

          blocks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-1575 viewing block from web UI broken

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed
          breaks

          Bug - A problem which impairs or prevents the functions of the product. HDFS-1575 viewing block from web UI broken

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed
          is related to

          Bug - A problem which impairs or prevents the functions of the product. HDFS-31 Hadoop distcp tool fails if file path contains special characters + & !

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. HDFS-1317 HDFSProxy needs additional changes to work after changes to streamFile servlet in HDFS-1109

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. HDFS-2235 Encode servlet paths

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. HADOOP-7527 Make URL encoding consistent

          • Major - Major loss of function.
          • Open

          Test - A new unit, integration or system test. HDFS-2233 Add WebUI tests with URI reserved chars in the path and filename

          • Major - Major loss of function.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-2052 Fix URL encoding of job history logfiles

          • Major - Major loss of function.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. HDFS-2236 DfsServlet and FileChecksumServlets still use the filename parameter

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Open

          Bug - A problem which impairs or prevents the functions of the product. MAPREDUCE-1378 Args in job details links on jobhistory.jsp are not URL encoded

          • Trivial - Cosmetic problem like misspelt words or misaligned text.
          • Closed

          Activity

            People

              dms Dmytro Molkov
              dms Dmytro Molkov
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              Dates

                Created:
                Updated:
                Resolved: