Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Not A Problem
    • Affects Version/s: 2.0.0-alpha, 3.0.0
    • Fix Version/s: None
    • Component/s: datanode, webhdfs
    • Labels:
      None
    • Target Version/s:

      Description

      We've repeatedly observed the jetty acceptor thread silently dying in the DNs. The webhdfs servlet may also "disappear" and jetty returns non-json 404s.

      One approach to make webhdfs more resilient to bad DNs is dfsclient-like fetching of block locations to directly access the DNs instead of relying on a NN redirect that may repeatedly send the client to the same faulty DN(s).

        Activity

        Hide
        Vinod Kumar Vavilapalli added a comment -

        Moving bugs out of previously closed releases into the next minor release 2.8.0.

        Show
        Vinod Kumar Vavilapalli added a comment - Moving bugs out of previously closed releases into the next minor release 2.8.0.
        Hide
        Eric Payne added a comment -

        Daryn Sharp, is this still a problem post HDFS-7163?

        Show
        Eric Payne added a comment - Daryn Sharp , is this still a problem post HDFS-7163 ?
        Hide
        Kihwal Lee added a comment -

        We've repeatedly observed the jetty acceptor thread silently dying in the DNs

        After converting DN to use netty, this is no longer a problem. jetty is still there, but only handles infrequent non-webhdfs http requests.

        Show
        Kihwal Lee added a comment - We've repeatedly observed the jetty acceptor thread silently dying in the DNs After converting DN to use netty, this is no longer a problem. jetty is still there, but only handles infrequent non-webhdfs http requests.

          People

          • Assignee:
            Daryn Sharp
            Reporter:
            Daryn Sharp
          • Votes:
            0 Vote for this issue
            Watchers:
            9 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Development