com.google.appengine.tools.mapreduce

Class MapReduceSettings

java.lang.Object

com.google.appengine.tools.mapreduce.MapSettings

com.google.appengine.tools.mapreduce.MapReduceSettings

All Implemented Interfaces:

Serializable

public class MapReduceSettings
extends MapSettings

Settings that affect how a MapReduce is executed. May affect performance and resource usage, but should not affect the result (unless the result is dependent on the performance or resource usage of the computation, or if different backends, modules or different base urls have different versions of the code).

Author:

ohler@google.com (Christian Ohler)

See Also:

Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	MapReduceSettings.Builder

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_MAP_FANOUT
static int	DEFAULT_MERGE_FANIN
static int	DEFAULT_SORT_BATCH_PER_EMIT_BYTES
static int	DEFAULT_SORT_READ_TIME_MILLIS

Fields inherited from class com.google.appengine.tools.mapreduce.MapSettings

CONTROLLER_PATH, DEFAULT_BASE_URL, DEFAULT_MILLIS_PER_SLICE, DEFAULT_SHARD_RETRIES, DEFAULT_SLICE_RETRIES, WORKER_PATH

Method Summary

Methods

Modifier and Type	Method and Description
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAP_FANOUT

public static final int DEFAULT_MAP_FANOUT

See Also:

Constant Field Values

DEFAULT_SORT_BATCH_PER_EMIT_BYTES

public static final int DEFAULT_SORT_BATCH_PER_EMIT_BYTES

See Also:

Constant Field Values

DEFAULT_SORT_READ_TIME_MILLIS

public static final int DEFAULT_SORT_READ_TIME_MILLIS

See Also:

Constant Field Values

DEFAULT_MERGE_FANIN

public static final int DEFAULT_MERGE_FANIN

See Also:

Constant Field Values

Method Detail

toString

public String toString()

Overrides:

toString in class MapSettings