Package org.apache.jackrabbit.oak.spi.gc

Interface GCMonitor

All Known Implementing Classes:
DelegatingGCMonitor, GCMonitor.Empty, GCMonitorTracker, LoggingGCMonitor
public interface GCMonitor
GCMonitor instance are used to monitor garbage collection. Instances of GCMonitor are registered to the Whiteboard to receive notifications regarding garbage collection.

  • Nested Class Summary

    Nested Classes
    Modifier and Type
    Interface
    Description
    static class 
    GCMonitor.Empty
     

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final GCMonitor
    EMPTY
     

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    cleaned(long reclaimedSize, long currentSize)
    The cleanup phase of the garbage collection process terminated successfully.
    void
    compacted()
    The compaction phase of the garbage collection process terminated successfully.
    void
    error(String message, Exception exception)
    An error caused the garbage collection process to terminate prematurely.
    void
    info(String message, Object... arguments)
    Informal notification on the progress of garbage collection.
    void
    skipped(String reason, Object... arguments)
    A garbage collection cycle is skipped for a specific reason.
    void
    updateStatus(String status)
    The garbage collection entered a new phase e.g.
    void
    warn(String message, Object... arguments)
    Warning about a condition that might have adverse effects on the overall garbage collection process but does not prevent the process from running.

  • Field Details

  • Method Details

    • info

      void info(String message, Object... arguments)
      Informal notification on the progress of garbage collection.
      Parameters:
      message - The message with {} place holders for the arguments
      arguments -

    • warn

      void warn(String message, Object... arguments)
      Warning about a condition that might have adverse effects on the overall garbage collection process but does not prevent the process from running.
      Parameters:
      message - The message with {} place holders for the arguments
      arguments -

    • error

      void error(String message, Exception exception)
      An error caused the garbage collection process to terminate prematurely.
      Parameters:
      message -
      exception -

    • skipped

      void skipped(String reason, Object... arguments)
      A garbage collection cycle is skipped for a specific reason.
      Parameters:
      reason - The reason with {} place holders for the arguments
      arguments -

    • compacted

      void compacted()
      The compaction phase of the garbage collection process terminated successfully.

    • cleaned

      void cleaned(long reclaimedSize, long currentSize)
      The cleanup phase of the garbage collection process terminated successfully.
      Parameters:
      reclaimedSize - number of bytes reclaimed
      currentSize - number of bytes after garbage collection

    • updateStatus

      void updateStatus(String status)
      The garbage collection entered a new phase e.g. idle, estimation, etc.
      Parameters:
      status - short summary of the GC phase