Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-15292

Refined ZooKeeperWatcher to prevent ZooKeeper's callback while construction

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 1.3.0, 0.98.20, 2.0.0
    • Component/s: Zookeeper
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      The existing code is not just messy but also contains a subtle bug of visibility due to missing synchronization between threads.

      The root of the evil is that ZooKeeper uses a silly anti-pattern, starting a thread within its constructor, and in practice all the developers are not allowed to use ZooKeeper correctly without tedious code.

        Attachments

        1. HBASE-15292.patch
          7 kB
          Hiroshi Ikeda
        2. HBASE-15292-V2.patch
          6 kB
          Hiroshi Ikeda
        3. HBASE-15292-V3.patch
          10 kB
          Hiroshi Ikeda
        4. HBASE-15292-V4.patch
          10 kB
          Hiroshi Ikeda
        5. HBASE-15292-V5.patch
          11 kB
          Hiroshi Ikeda

          Activity

            People

            • Assignee:
              ikeda Hiroshi Ikeda
              Reporter:
              ikeda Hiroshi Ikeda
            • Votes:
              0 Vote for this issue
              Watchers:
              5 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved: