Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-11827

Speed-up distcp buildListing() using threadpool

    XMLWordPrintableJSON

Details

    • Improvement
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • 2.7.0, 2.7.1
    • 2.8.0, 3.0.0-alpha1
    • tools/distcp
    • None

    Description

      For very large source trees on s3 distcp is taking long time to build file listing (client code, before starting mappers). For a dataset I used (1.5M files, 50K dirs) it was taking 65 minutes before my fix in HADOOP-11785 and 36 minutes after the fix).

      Attachments

        1. HADOOP-11827-04.patch
          38 kB
          Ravi Prakash
        2. HADOOP-11827-03.patch
          38 kB
          Zoran Dimitrijevic
        3. HADOOP-11827-02.patch
          37 kB
          Zoran Dimitrijevic
        4. HADOOP-11827.patch
          37 kB
          Zoran Dimitrijevic

        Issue Links

          Activity

            People

              3opan Zoran Dimitrijevic
              3opan Zoran Dimitrijevic
              Votes:
              0 Vote for this issue
              Watchers:
              6 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved:

                Time Tracking

                  Estimated:
                  Original Estimate - 24h
                  24h
                  Remaining:
                  Remaining Estimate - 24h
                  24h
                  Logged:
                  Time Spent - Not Specified
                  Not Specified