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  1. Cassandra
  2. CASSANDRA-1470

Avoid polluting page cache during compaction

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Details

    • Improvement
    • Status: Resolved
    • Normal
    • Resolution: Fixed
    • 0.7.1
    • None
    • 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. use.DirectIORandomAccessFile.for.commitlog.against.1022235.patch
          1.0 kB
          Robert Coli
        4. CASSANDRA-1470.patch
          7 kB
          Pavel Yaskevich
        5. CASSANDRA-1470-v2.patch
          8 kB
          Pavel Yaskevich
        6. CASSANDRA-1470-v3-0.7-with-LastErrorException-support.patch
          8 kB
          Pavel Yaskevich
        7. CASSANDRA-1470-for-0.6.patch
          7 kB
          Pavel Yaskevich
        8. CASSANDRA-1470-v4-for-0.7.patch
          17 kB
          Pavel Yaskevich
        9. CASSANDRA-1470-v5-for-0.7.patch
          30 kB
          Pavel Yaskevich
        10. CASSANDRA-1470-v6-for-0.7.patch
          31 kB
          Pavel Yaskevich
        11. CASSANDRA-1470-v7-for-0.7.patch
          32 kB
          T Jake Luciani
        12. CASSANDRA-1470-v8-for-0.7.patch
          33 kB
          Pavel Yaskevich
        13. CASSANDRA-1470-v9-for-0.7.patch
          33 kB
          Pavel Yaskevich
        14. CASSANDRA-1470-v10-for-0.7.patch
          37 kB
          T Jake Luciani
        15. CASSANDRA-1470-v11-for-0.7.patch
          38 kB
          T Jake Luciani
        16. CASSANDRA-1470-v12-0.7.patch
          36 kB
          Pavel Yaskevich
        17. CASSANDRA-1470-v13-0.7.patch
          36 kB
          Pavel Yaskevich
        18. CASSANDRA-1470-v14-0.7.patch
          34 kB
          T Jake Luciani

        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

              xedin Pavel Yaskevich
              jbellis Jonathan Ellis
              Pavel Yaskevich
              T Jake Luciani
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              Dates

                Created:
                Updated:
                Resolved:

                Time Tracking

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