Uploaded image for project: 'HBase'
  1. HBase
  2. HBASE-17118

StoreScanner leaked in KeyValueHeap

    XMLWordPrintableJSON

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.1.7, 1.2.4
    • Fix Version/s: 1.4.0, 1.2.5, 1.1.8, 1.3.3, 2.0.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      KeyValueHeap#generalizedSeek
      KeyValueScanner scanner = current;
      while (scanner != null) {
      Cell topKey = scanner.peek();
      ......
      boolean seekResult;
      if (isLazy && heap.size() > 0)

      { // If there is only one scanner left, we don't do lazy seek. seekResult = scanner.requestSeek(seekKey, forward, useBloom); }

      else

      { seekResult = NonLazyKeyValueScanner.doRealSeek(scanner, seekKey, forward); }

      ......
      scanner = heap.poll();
      }
      (1) scanner = heap.poll(); Retrieves and removes the head of this queue
      (2) scanner.requestSeek(seekKey, forward, useBloom); or NonLazyKeyValueScanner.doRealSeek(scanner, seekKey, forward);
      throw exception, and scanner will have no chance to close, so will cause the scanner leak.

        Attachments

        1. HBASE-17118.branch-1.1.v1.patch
          4 kB
          Lijin Bin
        2. HBASE-17118.branch-1.2.v1.patch
          4 kB
          Lijin Bin
        3. HBASE-17118.branch-1.addnumv1.patch
          0.6 kB
          Lijin Bin
        4. HBASE-17118.branch-1.v1.patch
          4 kB
          Lijin Bin
        5. HBASE-17118-master_v1.patch
          3 kB
          Lijin Bin
        6. HBASE-17118-master_v2.patch
          4 kB
          Lijin Bin
        7. HBASE-17118-master_v3.patch
          4 kB
          Lijin Bin
        8. HBASE-17118-master_v4.patch
          4 kB
          Lijin Bin
        9. HBASE-17118-master_v5.patch
          4 kB
          Lijin Bin
        10. StoreScanner.png
          106 kB
          Lijin Bin
        11. StoreScannerLeakHeap.png
          306 kB
          Lijin Bin

          Issue Links

            Activity

              People

              • Assignee:
                binlijin Lijin Bin
                Reporter:
                binlijin Lijin Bin
              • Votes:
                0 Vote for this issue
                Watchers:
                13 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: