Uploaded image for project: 'Hadoop Common'
  1. Hadoop Common
  2. HADOOP-17566 Über-jira: S3A Hadoop 3.4 features
  3. HADOOP-17386

fs.s3a.buffer.dir to be under Yarn container path on yarn applications

    XMLWordPrintableJSON

    Details

    • Type: Sub-task
    • Status: Open
    • Priority: Major
    • Resolution: Unresolved
    • Affects Version/s: 3.3.0
    • Fix Version/s: None
    • Component/s: fs/s3
    • Labels:
      None

      Description

      1. fs.s3a.buffer.dir defaults to hadoop.tmp.dir which is /tmp or similar
      2. we use this for storing file blocks during upload
      3. staging committers use it for all files in a task, which can be a lot more
      4. a lot of systems don't clean up /tmp until reboot -and if they stay up for a long time then they accrue files written through s3a staging committer from spark containers which fail

      Fix: use ${env.LOCAL_DIRS:-${hadoop.tmp.dir}}/s3a as the option so that if env.LOCAL_DIRS is set is used over hadoop.tmp.dir. YARN-deployed apps will use that for the buffer dir. When the app container is destroyed, so is the directory.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                Unassigned
                Reporter:
                stevel@apache.org Steve Loughran
              • Votes:
                0 Vote for this issue
                Watchers:
                1 Start watching this issue

                Dates

                • Created:
                  Updated: