com.bigdata.service.mapred
Class AbstractJobAndTaskService.Options

java.lang.Object
  com.bigdata.service.mapred.AbstractJobAndTaskService.Options

Direct Known Subclasses:

MapService.Options, ReduceService.Options

Enclosing class:

AbstractJobAndTaskService<M extends IJobMetadata,T extends ITask>

public static class AbstractJobAndTaskService.Options
extends Object

Options for AbstractJobAndTaskService.AbstractJobAndTaskService(Properties)

Version:

$Id: AbstractJobAndTaskService.java 2265 2009-10-26 12:51:06Z thompsonbry $

Author:

Bryan Thompson

Field Summary

static String	DEFAULT_HEARTBEAT_PERIOD The default period between runs of the HeartbeatMonitorTask (1000ms).
static String	DEFAULT_HEARTBEAT_TIMEOUT The default maximum heartbeat timeout (3000ms).
static String	DEFAULT_THREAD_POOL_SIZE The default thread pool size is 50 per CPU.
static String	HEARTBEAT_PERIOD The period between runs of the HeartbeatMonitorTask (it looks for jobs that have not received a heartbeat).
static String	HEARTBEAT_TIMEOUT The maximum time that a job may continue to run without receiving a heartbeat message (default is 3000ms).
static String	THREAD_POOL_SIZE The thread pool size (#of workers).

Constructor Summary

AbstractJobAndTaskService.Options()

Method Summary

Methods inherited from class java.lang.Object

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

Field Detail

THREAD_POOL_SIZE

public static final String THREAD_POOL_SIZE

The thread pool size (#of workers). The default is a constant multiplier times the #of CPUs available on the platform.

See Also:

DEFAULT_THREAD_POOL_SIZE, Constant Field Values

DEFAULT_THREAD_POOL_SIZE

public static final String DEFAULT_THREAD_POOL_SIZE

The default thread pool size is 50 per CPU.

HEARTBEAT_TIMEOUT

public static final String HEARTBEAT_TIMEOUT

The maximum time that a job may continue to run without receiving a heartbeat message (default is 3000ms). A value of ZERO (0L) will disable the HeartbeatMonitorTask.

See Also:

Constant Field Values

DEFAULT_HEARTBEAT_TIMEOUT

public static final String DEFAULT_HEARTBEAT_TIMEOUT

The default maximum heartbeat timeout (3000ms).

See Also:

Constant Field Values

HEARTBEAT_PERIOD

public static final String HEARTBEAT_PERIOD

The period between runs of the HeartbeatMonitorTask (it looks for jobs that have not received a heartbeat).

See Also:

Constant Field Values

DEFAULT_HEARTBEAT_PERIOD

public static final String DEFAULT_HEARTBEAT_PERIOD

The default period between runs of the HeartbeatMonitorTask (1000ms).

See Also:

Constant Field Values

Constructor Detail

AbstractJobAndTaskService.Options

public AbstractJobAndTaskService.Options()