org.apache.ignite.internal.processors.query.h2

Class LongRunningQueryManager

java.lang.Object

org.apache.ignite.internal.processors.query.h2.LongRunningQueryManager

public final class LongRunningQueryManager
extends Object

Long running query manager.

Field Summary

Fields

Modifier and Type	Field and Description
static String	LONG_QUERY_ERROR_MSG
static String	LONG_QUERY_EXEC_MSG Message about the long execution of the query.
static String	LONG_QUERY_FINISHED_MSG

Constructor Summary

Constructors

Constructor and Description
LongRunningQueryManager(GridKernalContext ctx)

Method Summary

Modifier and Type	Method and Description
long	getResultSetSizeThreshold()
int	getResultSetSizeThresholdMultiplier() Gets result set size threshold multiplier.
long	getTimeout()
int	getTimeoutMultiplier()
void	registerQuery(H2QueryInfo qryInfo)
void	setResultSetSizeThreshold(long rsSizeThreshold) Sets threshold result's row count, when count of fetched rows is bigger than the threshold warning will be printed.
void	setResultSetSizeThresholdMultiplier(int rsSizeThresholdMult) Sets result set size threshold multiplier.
void	setTimeout(long timeout) Sets timeout in milliseconds after which long query warning will be printed.
void	setTimeoutMultiplier(int timeoutMult) Sets long query timeout multiplier.
void	stop()
void	unregisterQuery(H2QueryInfo qryInfo, @Nullable Throwable err)

Methods inherited from class java.lang.Object

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

Field Detail

LONG_QUERY_EXEC_MSG

public static final String LONG_QUERY_EXEC_MSG

Message about the long execution of the query.

See Also:

Constant Field Values

LONG_QUERY_FINISHED_MSG

public static final String LONG_QUERY_FINISHED_MSG

See Also:

Constant Field Values

LONG_QUERY_ERROR_MSG

public static final String LONG_QUERY_ERROR_MSG

See Also:

Constant Field Values

Constructor Detail

LongRunningQueryManager

public LongRunningQueryManager(GridKernalContext ctx)

Parameters:

ctx - Kernal context.

Method Detail

stop

public void stop()

registerQuery

public void registerQuery(H2QueryInfo qryInfo)

Parameters:

qryInfo - Query info to register.

unregisterQuery

public void unregisterQuery(H2QueryInfo qryInfo,
                            @Nullable
                            @Nullable Throwable err)

Parameters:

qryInfo - Query info to remove.

err - Exception if query executed with error.

getTimeout

public long getTimeout()

Returns:

Timeout in milliseconds after which long query warning will be printed.

setTimeout

public void setTimeout(long timeout)

Sets timeout in milliseconds after which long query warning will be printed.

Parameters:

timeout - Timeout in milliseconds after which long query warning will be printed.

getTimeoutMultiplier

public int getTimeoutMultiplier()

Returns:

Long query timeout multiplier.

setTimeoutMultiplier

public void setTimeoutMultiplier(int timeoutMult)

Sets long query timeout multiplier. The warning will be printed after: - timeout; - timeout * multiplier; - timeout * multiplier * multiplier; - etc... If the multiplier <= 1, the warning message is printed once.

Parameters:

timeoutMult - Long query timeout multiplier.

getResultSetSizeThreshold

public long getResultSetSizeThreshold()

Returns:

Threshold result's row count, when count of fetched rows is bigger than the threshold warning will be printed.

setResultSetSizeThreshold

public void setResultSetSizeThreshold(long rsSizeThreshold)

Sets threshold result's row count, when count of fetched rows is bigger than the threshold warning will be printed.

Parameters:

rsSizeThreshold - Threshold result's row count, when count of fetched rows is bigger than the threshold warning will be printed.

getResultSetSizeThresholdMultiplier

public int getResultSetSizeThresholdMultiplier()

Gets result set size threshold multiplier. The warning will be printed after: - size of result set > threshold; - size of result set > threshold * multiplier; - size of result set > threshold * multiplier * multiplier; - etc. If the multiplier <= 1, the warning message is printed once.

Returns:

Result set size threshold multiplier.

setResultSetSizeThresholdMultiplier

public void setResultSetSizeThresholdMultiplier(int rsSizeThresholdMult)

Sets result set size threshold multiplier.

Parameters:

rsSizeThresholdMult - Result set size threshold multiplier