org.apache.kyuubi.shaded.hive.metastore

Class HiveMetaStoreClient

java.lang.Object

org.apache.kyuubi.shaded.hive.metastore.HiveMetaStoreClient

All Implemented Interfaces:

AutoCloseable, IMetaStoreClient

@InterfaceAudience.Public
 @InterfaceStability.Evolving
public class HiveMetaStoreClient
extends Object
implements IMetaStoreClient, AutoCloseable

Hive Metastore Client. The public implementation of IMetaStoreClient. Methods not inherited from IMetaStoreClient are not public and can change. Hence this is marked as unstable. For users who require retry mechanism when the connection between metastore and client is broken, RetryingMetaStoreClient class should be used.

Field Summary

Fields

Modifier and Type	Field and Description
protected org.apache.hadoop.conf.Configuration	conf
protected static org.slf4j.Logger	LOG

Constructor Summary

Constructors

Constructor and Description
HiveMetaStoreClient(org.apache.hadoop.conf.Configuration conf)

Method Summary

Modifier and Type	Method and Description
void	close() close connection to meta store
protected org.apache.http.impl.client.HttpClientBuilder	createHttpClientBuilder()
String	getDelegationToken(String owner, String renewerKerberosPrincipalName) This is expected to be a no-op when in local mode, which means that the implementation will return null.
org.apache.kyuubi.shaded.thrift.transport.TTransport	getTTransport()
boolean	isLocalMetaStore() Returns true if the current client is using an in process metastore (local metastore).
void	reconnect() Tries to reconnect this MetaStoreClient to the MetaStore.

Methods inherited from class java.lang.Object

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

Field Detail

conf

protected final org.apache.hadoop.conf.Configuration conf

LOG

protected static final org.slf4j.Logger LOG

Constructor Detail

HiveMetaStoreClient

public HiveMetaStoreClient(org.apache.hadoop.conf.Configuration conf)
                    throws MetaException

Throws:

MetaException

Method Detail

getTTransport

public org.apache.kyuubi.shaded.thrift.transport.TTransport getTTransport()

isLocalMetaStore

public boolean isLocalMetaStore()

Description copied from interface: IMetaStoreClient

Returns true if the current client is using an in process metastore (local metastore).

Specified by:

isLocalMetaStore in interface IMetaStoreClient

Returns:

reconnect

public void reconnect()
               throws MetaException

Description copied from interface: IMetaStoreClient

Tries to reconnect this MetaStoreClient to the MetaStore.

Specified by:

reconnect in interface IMetaStoreClient

Throws:

MetaException

createHttpClientBuilder

protected org.apache.http.impl.client.HttpClientBuilder createHttpClientBuilder()
                                                                         throws MetaException

Throws:

MetaException

close

public void close()

Description copied from interface: IMetaStoreClient

close connection to meta store

Specified by:

close in interface AutoCloseable

Specified by:

close in interface IMetaStoreClient

getDelegationToken

public String getDelegationToken(String owner,
                                 String renewerKerberosPrincipalName)
                          throws MetaException,
                                 org.apache.kyuubi.shaded.thrift.TException

Description copied from interface: IMetaStoreClient

This is expected to be a no-op when in local mode, which means that the implementation will return null.

Specified by:

getDelegationToken in interface IMetaStoreClient

Parameters:

owner - the intended owner for the token

Returns:

the string of the token

Throws:

MetaException

org.apache.kyuubi.shaded.thrift.TException