org.apache.ignite.internal.processors.performancestatistics

Class FilePerformanceStatisticsWriter

java.lang.Object

org.apache.ignite.internal.processors.performancestatistics.FilePerformanceStatisticsWriter

public class FilePerformanceStatisticsWriter
extends Object

Performance statistics writer based on logging to a file.

Each node collects statistics to a file placed under PERF_STAT_DIR.

To iterate over records use FilePerformanceStatisticsReader.

Field Summary

Fields

Modifier and Type	Field and Description
static int	DFLT_BUFFER_SIZE Default off heap buffer size in bytes.
static int	DFLT_CACHED_STRINGS_THRESHOLD Default maximum cached strings threshold.
static long	DFLT_FILE_MAX_SIZE Default maximum file size in bytes.
static int	DFLT_FLUSH_SIZE Default minimal batch size to flush in bytes.
static String	PERF_STAT_DIR Directory to store performance statistics files.

Constructor Summary

Constructors

Constructor and Description
FilePerformanceStatisticsWriter(GridKernalContext ctx)

Method Summary

Modifier and Type	Method and Description
void	cacheOperation(OperationType type, int cacheId, long startTime, long duration)
void	cacheStart(int cacheId, String name)
void	job(IgniteUuid sesId, long queuedTime, long startTime, long duration, boolean timedOut)
void	query(GridCacheQueryType type, String text, long id, long startTime, long duration, boolean success)
void	queryReads(GridCacheQueryType type, UUID queryNodeId, long id, long logicalReads, long physicalReads)
void	start() Starts collecting performance statistics.
void	stop() Stops collecting performance statistics.
void	task(IgniteUuid sesId, String taskName, long startTime, long duration, int affPartId)
void	transaction(GridIntList cacheIds, long startTime, long duration, boolean commited)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

PERF_STAT_DIR

public static final String PERF_STAT_DIR

Directory to store performance statistics files. Placed under Ignite work directory.

See Also:

Constant Field Values

DFLT_FILE_MAX_SIZE

public static final long DFLT_FILE_MAX_SIZE

Default maximum file size in bytes. Performance statistics will be stopped when the size exceeded.

See Also:

Constant Field Values

DFLT_BUFFER_SIZE

public static final int DFLT_BUFFER_SIZE

Default off heap buffer size in bytes.

See Also:

Constant Field Values

DFLT_FLUSH_SIZE

public static final int DFLT_FLUSH_SIZE

Default minimal batch size to flush in bytes.

See Also:

Constant Field Values

DFLT_CACHED_STRINGS_THRESHOLD

public static final int DFLT_CACHED_STRINGS_THRESHOLD

Default maximum cached strings threshold. String caching will stop on threshold excess.

See Also:

Constant Field Values

Constructor Detail

FilePerformanceStatisticsWriter

public FilePerformanceStatisticsWriter(GridKernalContext ctx)
                                throws IgniteCheckedException,
                                       IOException

Parameters:

ctx - Kernal context.

Throws:

IgniteCheckedException

IOException

Method Detail

start

public void start()

Starts collecting performance statistics.

stop

public void stop()

Stops collecting performance statistics.

cacheStart

public void cacheStart(int cacheId,
                       String name)

Parameters:

cacheId - Cache id.

name - Cache name.

cacheOperation

public void cacheOperation(OperationType type,
                           int cacheId,
                           long startTime,
                           long duration)

Parameters:

type - Operation type.

cacheId - Cache id.

startTime - Start time in milliseconds.

duration - Duration in nanoseconds.

transaction

public void transaction(GridIntList cacheIds,
                        long startTime,
                        long duration,
                        boolean commited)

Parameters:

cacheIds - Cache IDs.

startTime - Start time in milliseconds.

duration - Duration in nanoseconds.

commited - True if commited.

query

public void query(GridCacheQueryType type,
                  String text,
                  long id,
                  long startTime,
                  long duration,
                  boolean success)

Parameters:

type - Cache query type.

text - Query text in case of SQL query. Cache name in case of SCAN query.

id - Query id.

startTime - Start time in milliseconds.

duration - Duration in nanoseconds.

success - Success flag.

queryReads

public void queryReads(GridCacheQueryType type,
                       UUID queryNodeId,
                       long id,
                       long logicalReads,
                       long physicalReads)

Parameters:

type - Cache query type.

queryNodeId - Originating node id.

id - Query id.

logicalReads - Number of logical reads.

physicalReads - Number of physical reads.

task

public void task(IgniteUuid sesId,
                 String taskName,
                 long startTime,
                 long duration,
                 int affPartId)

Parameters:

sesId - Session id.

taskName - Task name.

startTime - Start time in milliseconds.

duration - Duration.

affPartId - Affinity partition id.

job

public void job(IgniteUuid sesId,
                long queuedTime,
                long startTime,
                long duration,
                boolean timedOut)

Parameters:

sesId - Session id.

queuedTime - Time job spent on waiting queue.

startTime - Start time in milliseconds.

duration - Job execution time.

timedOut - True if job is timed out.