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  1. Cassandra
  2. CASSANDRA-1470

Avoid polluting page cache during compaction

          Details

          • Type: Improvement
          • Status: Resolved
          • Priority: Major
          • 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

                • Major - Major loss of function.
                • Resolved

                  Activity

                    People

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

                      Dates

                      • Created:
                        Updated:
                        Resolved:

                        Time Tracking

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