org.apache.hadoop.hive.ql

Class DriverUtils

java.lang.Object

org.apache.hadoop.hive.ql.DriverUtils

public final class DriverUtils
extends Object

Utility functions for the Driver.

Method Summary

Modifier and Type	Method and Description
static boolean	checkConcurrency(DriverContext driverContext)
static void	checkInterrupted(DriverState driverState, DriverContext driverContext, String msg, HookContext hookContext, PerfLogger perfLogger)
static CommandProcessorException	createProcessorException(DriverContext driverContext, int ret, String errorMessage, String sqlState, Throwable downstreamError)
static String	getUserFromUGI(DriverContext driverContext)
static void	handleHiveException(DriverContext driverContext, HiveException e, int ret, String rootMsg)
static void	invokeFailureHooks(DriverContext driverContext, PerfLogger perfLogger, HookContext hookContext, String errorMessage, Throwable exception)
static void	runOnDriver(HiveConf conf, SessionState sessionState, String query)
static void	runOnDriver(HiveConf conf, SessionState sessionState, String query, long analyzeTableWriteId) For Statistics gathering after compaction.
static void	runOnDriver(HiveConf conf, SessionState sessionState, String query, ValidWriteIdList writeIds, long compactorTxnId) For Query Based compaction to run the query to generate the compacted data.
static SessionState	setUpSessionState(HiveConf conf, String user, boolean doStart)

Methods inherited from class java.lang.Object

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

Method Detail

runOnDriver

public static void runOnDriver(HiveConf conf,
                               SessionState sessionState,
                               String query)
                        throws HiveException

Throws:

HiveException

runOnDriver

public static void runOnDriver(HiveConf conf,
                               SessionState sessionState,
                               String query,
                               ValidWriteIdList writeIds,
                               long compactorTxnId)
                        throws HiveException

For Query Based compaction to run the query to generate the compacted data.

Throws:

HiveException

runOnDriver

public static void runOnDriver(HiveConf conf,
                               SessionState sessionState,
                               String query,
                               long analyzeTableWriteId)
                        throws HiveException

For Statistics gathering after compaction. Using this overload won't increment the writeid during stats gathering.

Throws:

HiveException

setUpSessionState

public static SessionState setUpSessionState(HiveConf conf,
                                             String user,
                                             boolean doStart)

checkInterrupted

public static void checkInterrupted(DriverState driverState,
                                    DriverContext driverContext,
                                    String msg,
                                    HookContext hookContext,
                                    PerfLogger perfLogger)
                             throws CommandProcessorException

Throws:

CommandProcessorException

invokeFailureHooks

public static void invokeFailureHooks(DriverContext driverContext,
                                      PerfLogger perfLogger,
                                      HookContext hookContext,
                                      String errorMessage,
                                      Throwable exception)
                               throws Exception

Throws:

Exception

handleHiveException

public static void handleHiveException(DriverContext driverContext,
                                       HiveException e,
                                       int ret,
                                       String rootMsg)
                                throws CommandProcessorException

Throws:

CommandProcessorException

createProcessorException

public static CommandProcessorException createProcessorException(DriverContext driverContext,
                                                                 int ret,
                                                                 String errorMessage,
                                                                 String sqlState,
                                                                 Throwable downstreamError)

checkConcurrency

public static boolean checkConcurrency(DriverContext driverContext)

getUserFromUGI

public static String getUserFromUGI(DriverContext driverContext)
                             throws CommandProcessorException

Throws:

CommandProcessorException