Uploaded image for project: 'Cassandra'
  1. Cassandra
  2. CASSANDRA-1470

Avoid polluting page cache during compaction

    XMLWordPrintableJSON

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Normal
    • Resolution: Fixed
    • Fix Version/s: 0.7.1
    • Component/s: None
    • Labels:
      None

      Description

      When compaction scans through a group of sstables, it forces the data in the os buffer cache being used for hot reads, which can have a dramatic negative effect on performance.

        Attachments

        1. 1470.txt
          30 kB
          Jonathan Ellis
        2. 1470-v2.txt
          23 kB
          Jonathan Ellis
        3. CASSANDRA-1470.patch
          7 kB
          Pavel Yaskevich
        4. CASSANDRA-1470-for-0.6.patch
          7 kB
          Pavel Yaskevich
        5. CASSANDRA-1470-v10-for-0.7.patch
          37 kB
          T Jake Luciani
        6. CASSANDRA-1470-v11-for-0.7.patch
          38 kB
          T Jake Luciani
        7. CASSANDRA-1470-v12-0.7.patch
          36 kB
          Pavel Yaskevich
        8. CASSANDRA-1470-v13-0.7.patch
          36 kB
          Pavel Yaskevich
        9. CASSANDRA-1470-v14-0.7.patch
          34 kB
          T Jake Luciani
        10. CASSANDRA-1470-v2.patch
          8 kB
          Pavel Yaskevich
        11. CASSANDRA-1470-v3-0.7-with-LastErrorException-support.patch
          8 kB
          Pavel Yaskevich
        12. CASSANDRA-1470-v4-for-0.7.patch
          17 kB
          Pavel Yaskevich
        13. CASSANDRA-1470-v5-for-0.7.patch
          30 kB
          Pavel Yaskevich
        14. CASSANDRA-1470-v6-for-0.7.patch
          31 kB
          Pavel Yaskevich
        15. CASSANDRA-1470-v7-for-0.7.patch
          32 kB
          T Jake Luciani
        16. CASSANDRA-1470-v8-for-0.7.patch
          33 kB
          Pavel Yaskevich
        17. CASSANDRA-1470-v9-for-0.7.patch
          33 kB
          Pavel Yaskevich
        18. use.DirectIORandomAccessFile.for.commitlog.against.1022235.patch
          1.0 kB
          Robert Coli

          Issue Links

          is related to

          Improvement - An improvement or enhancement to an existing feature or task. CASSANDRA-1908 Implement the CLibrary using JNI module to avoid the LGPL dependency on JNA

          • Normal -
          • Resolved

            Activity

              People

              • Assignee:
                xedin Pavel Yaskevich
                Reporter:
                jbellis Jonathan Ellis
                Authors:
                Pavel Yaskevich
                Reviewers:
                T Jake Luciani
              • Votes:
                0 Vote for this issue
                Watchers:
                7 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved:

                  Time Tracking

                  Estimated:
                  Original Estimate - 80h
                  80h
                  Remaining:
                  Remaining Estimate - 80h
                  80h
                  Logged:
                  Time Spent - Not Specified
                  Not Specified