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Berkeley DB
version 4.4.20

com.sleepycat.db
Class LogStats

java.lang.Object
  extended bycom.sleepycat.db.LogStats

public class LogStats
extends Object

Log statistics for a database environment.


Method Summary
 int getCurFile()
          The current log file number.
 int getCurOffset()
          The byte offset in the current log file.
 int getDiskFile()
          The log file number of the last record known to be on disk.
 int getDiskOffset()
          The byte offset of the last record known to be on disk.
 int getLgBSize()
          The in-memory log record cache size.
 int getLgSize()
          The current log file size.
 int getMagic()
          The magic number that identifies a file as a log file.
 int getMaxCommitperflush()
          The maximum number of commits contained in a single log flush.
 int getMinCommitperflush()
          The minimum number of commits contained in a single log flush that contained a commit.
 int getMode()
          The mode of any created log files.
 int getRCount()
          The number of times the log has been read from disk.
 int getRecord()
          The number of records written to this log.
 int getRegionNowait()
          The number of times that a thread of control was able to obtain the region lock without waiting.
 int getRegionWait()
          The number of times that a thread of control was forced to wait before obtaining the region lock.
 int getRegSize()
          The size of the region.
 int getSCount()
          The number of times the log has been flushed to disk.
 int getVersion()
          The version of the log file type.
 int getWBytes()
          The number of bytes over and above st_w_mbytes written to this log.
 int getWcBytes()
          The number of bytes over and above LogStats.getWcMbytes written to this log since the last checkpoint.
 int getWcMbytes()
          The number of megabytes written to this log since the last checkpoint.
 int getWCount()
          The number of times the log has been written to disk.
 int getWCountFill()
          The number of times the log has been written to disk because the in-memory log record cache filled up.
 int getWMbytes()
          The number of megabytes written to this log.
 String toString()
          For convenience, the LogStats class has a toString method that lists all the data fields.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Method Detail

getMagic

public int getMagic()
The magic number that identifies a file as a log file.


getVersion

public int getVersion()
The version of the log file type.


getMode

public int getMode()
The mode of any created log files.


getLgBSize

public int getLgBSize()
The in-memory log record cache size.


getLgSize

public int getLgSize()
The current log file size.


getRecord

public int getRecord()
The number of records written to this log.


getRCount

public int getRCount()
The number of times the log has been read from disk.


getWBytes

public int getWBytes()
The number of bytes over and above st_w_mbytes written to this log.


getWMbytes

public int getWMbytes()
The number of megabytes written to this log.


getWcBytes

public int getWcBytes()
The number of bytes over and above LogStats.getWcMbytes written to this log since the last checkpoint.


getWcMbytes

public int getWcMbytes()
The number of megabytes written to this log since the last checkpoint.


getWCount

public int getWCount()
The number of times the log has been written to disk.


getWCountFill

public int getWCountFill()
The number of times the log has been written to disk because the in-memory log record cache filled up.


getSCount

public int getSCount()
The number of times the log has been flushed to disk.


getRegionWait

public int getRegionWait()
The number of times that a thread of control was forced to wait before obtaining the region lock.


getRegionNowait

public int getRegionNowait()
The number of times that a thread of control was able to obtain the region lock without waiting.


getCurFile

public int getCurFile()
The current log file number.


getCurOffset

public int getCurOffset()
The byte offset in the current log file.


getDiskFile

public int getDiskFile()
The log file number of the last record known to be on disk.


getDiskOffset

public int getDiskOffset()
The byte offset of the last record known to be on disk.


getRegSize

public int getRegSize()
The size of the region.


getMaxCommitperflush

public int getMaxCommitperflush()
The maximum number of commits contained in a single log flush.


getMinCommitperflush

public int getMinCommitperflush()
The minimum number of commits contained in a single log flush that contained a commit.


toString

public String toString()
For convenience, the LogStats class has a toString method that lists all the data fields.


Berkeley DB
version 4.4.20

Copyright (c) 1996-2005 Sleepycat Software, Inc. - All rights reserved.