Package org.apache.cassandra.db.commitlog

Interface CommitLogMBean

  • All Known Implementing Classes:
    CommitLog
    public interface CommitLogMBean

    • Method Detail

      • getArchiveCommand

        java.lang.String getArchiveCommand()
        Command to execute to archive a commitlog segment. Blank to disabled.

      • getRestoreCommand

        java.lang.String getRestoreCommand()
        Command to execute to make an archived commitlog live again

      • getRestoreDirectories

        java.lang.String getRestoreDirectories()
        Directory to scan the recovery files in

      • getRestorePointInTime

        long getRestorePointInTime()
        Restore mutations created up to and including this timestamp in GMT There are only three different formats to express three time precisions: Seconds, Milliseconds, and Microseconds. Seconds format: yyyy:MM:dd HH:mm:ss (2012:04:31 20:43:12) Milliseconds format: yyyy:MM:dd HH:mm:ss.SSS (2012:04:31 20:43:12.633) Microseconds format: yyyy:MM:dd HH:mm:ss.SSSSSS (2012:04:31 20:43:12.633222) Recovery will continue through the segment when the first client-supplied timestamp greater than this time is encountered, but only mutations less than or equal to this timestamp will be applied.

      • getRestorePrecision

        java.lang.String getRestorePrecision()
        get precision of the timestamp used in the restore (MILLISECONDS, MICROSECONDS, ...) to determine if passed the restore point in time.

      • recover

        void recover​(java.lang.String path)
      throws java.io.IOException
        Recover a single file.
        Throws:
        java.io.IOException

      • getActiveSegmentNames

        java.util.List<java.lang.String> getActiveSegmentNames()
        Returns:
        file names (not full paths) of active commit log segments (segments containing unflushed data)

      • getArchivingSegmentNames

        java.util.List<java.lang.String> getArchivingSegmentNames()
        Returns:
        Files which are pending for archival attempt. Does NOT include failed archive attempts.

      • getActiveContentSize

        long getActiveContentSize()
        Returns:
        The size of the mutations in all active commit log segments (uncompressed).

      • getActiveOnDiskSize

        long getActiveOnDiskSize()
        Returns:
        The space taken on disk by the commit log (compressed).

      • getActiveSegmentCompressionRatios

        java.util.Map<java.lang.String,​java.lang.Double> getActiveSegmentCompressionRatios()
        Returns:
        A map between active log segments and the compression ratio achieved for each.

      • getCDCBlockWrites

        boolean getCDCBlockWrites()

      • setCDCBlockWrites

        void setCDCBlockWrites​(boolean val)