org.apache.hadoop.hive.llap

Class ProactiveEviction.Request

java.lang.Object

org.apache.hadoop.hive.llap.ProactiveEviction.Request

Enclosing class:

ProactiveEviction

public static final class ProactiveEviction.Request
extends Object

Holds information on entities: DB name(s), table name(s), partitions.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ProactiveEviction.Request.Builder Lets callers specify what entities are requested to be evicted, and builds a Request instance accordingly.

Method Summary

Modifier and Type	Method and Description
Map<String,Map<String,Set<LinkedHashMap<String,String>>>>	getEntities()
String	getSingleDbName() Request often times only contains tables/partitions of 1 DB only.
boolean	isEmpty()
boolean	isTagMatch(CacheTag cacheTag) Match a CacheTag to this eviction request.
List<org.apache.hadoop.hive.llap.daemon.rpc.LlapDaemonProtocolProtos.EvictEntityRequestProto>	toProtoRequests() Translate to Protobuf requests.
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

getEntities

public Map<String,Map<String,Set<LinkedHashMap<String,String>>>> getEntities()

isEmpty

public boolean isEmpty()

getSingleDbName

public String getSingleDbName()

Request often times only contains tables/partitions of 1 DB only.

Returns:

the single DB name, null if the count of DBs present is not exactly 1.

toProtoRequests

public List<org.apache.hadoop.hive.llap.daemon.rpc.LlapDaemonProtocolProtos.EvictEntityRequestProto> toProtoRequests()

Translate to Protobuf requests.

Returns:

list of request instances ready to be sent over protobuf.

isTagMatch

public boolean isTagMatch(CacheTag cacheTag)

Match a CacheTag to this eviction request. Must only be used on LLAP side only, where the received request may only contain one information for one DB.

Parameters:

cacheTag -

Returns:

true if cacheTag matches and the related buffer is eligible for proactive eviction, false otherwise.

toString

public String toString()

Overrides:

toString in class Object