org.apache.hadoop.hive.metastore

Class RetryingMetaStoreClient

java.lang.Object

org.apache.hadoop.hive.metastore.RetryingMetaStoreClient

All Implemented Interfaces:

InvocationHandler

@InterfaceAudience.Public
public class RetryingMetaStoreClient
extends Object
implements InvocationHandler

RetryingMetaStoreClient. Creates a proxy for a IMetaStoreClient implementation and retries calls to it on failure. If the login user is authenticated using keytab, it relogins user before each call.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RetryingMetaStoreClient(org.apache.hadoop.conf.Configuration conf, Class<?>[] constructorArgTypes, Object[] constructorArgs, ConcurrentHashMap<String,Long> metaCallTimeMap, Class<? extends IMetaStoreClient> msClientClass)

Method Summary

Modifier and Type	Method and Description
static IMetaStoreClient	getProxy(org.apache.hadoop.conf.Configuration hiveConf, boolean allowEmbedded)
static IMetaStoreClient	getProxy(org.apache.hadoop.conf.Configuration hiveConf, Class<?>[] constructorArgTypes, Object[] constructorArgs, ConcurrentHashMap<String,Long> metaCallTimeMap, String mscClassName) This constructor is meant for Hive internal use only.
static IMetaStoreClient	getProxy(org.apache.hadoop.conf.Configuration hiveConf, Class<?>[] constructorArgTypes, Object[] constructorArgs, String mscClassName) This constructor is meant for Hive internal use only.
static IMetaStoreClient	getProxy(org.apache.hadoop.conf.Configuration hiveConf, HiveMetaHookLoader hookLoader, ConcurrentHashMap<String,Long> metaCallTimeMap, String mscClassName, boolean allowEmbedded)
static IMetaStoreClient	getProxy(org.apache.hadoop.conf.Configuration hiveConf, HiveMetaHookLoader hookLoader, String mscClassName)
Object	invoke(Object proxy, Method method, Object[] args)

Methods inherited from class java.lang.Object

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

Constructor Detail

RetryingMetaStoreClient

protected RetryingMetaStoreClient(org.apache.hadoop.conf.Configuration conf,
                                  Class<?>[] constructorArgTypes,
                                  Object[] constructorArgs,
                                  ConcurrentHashMap<String,Long> metaCallTimeMap,
                                  Class<? extends IMetaStoreClient> msClientClass)
                           throws org.apache.hadoop.hive.metastore.api.MetaException

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

Method Detail

getProxy

public static IMetaStoreClient getProxy(org.apache.hadoop.conf.Configuration hiveConf,
                                        boolean allowEmbedded)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

getProxy

public static IMetaStoreClient getProxy(org.apache.hadoop.conf.Configuration hiveConf,
                                        HiveMetaHookLoader hookLoader,
                                        String mscClassName)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

getProxy

public static IMetaStoreClient getProxy(org.apache.hadoop.conf.Configuration hiveConf,
                                        HiveMetaHookLoader hookLoader,
                                        ConcurrentHashMap<String,Long> metaCallTimeMap,
                                        String mscClassName,
                                        boolean allowEmbedded)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

getProxy

public static IMetaStoreClient getProxy(org.apache.hadoop.conf.Configuration hiveConf,
                                        Class<?>[] constructorArgTypes,
                                        Object[] constructorArgs,
                                        String mscClassName)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

This constructor is meant for Hive internal use only. Please use getProxy(HiveConf conf, HiveMetaHookLoader hookLoader) for external purpose.

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

getProxy

public static IMetaStoreClient getProxy(org.apache.hadoop.conf.Configuration hiveConf,
                                        Class<?>[] constructorArgTypes,
                                        Object[] constructorArgs,
                                        ConcurrentHashMap<String,Long> metaCallTimeMap,
                                        String mscClassName)
                                 throws org.apache.hadoop.hive.metastore.api.MetaException

This constructor is meant for Hive internal use only. Please use getProxy(HiveConf conf, HiveMetaHookLoader hookLoader) for external purpose.

Throws:

org.apache.hadoop.hive.metastore.api.MetaException

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Specified by:

invoke in interface InvocationHandler

Throws:

Throwable