org.apache.hadoop.hive.ql.parse.repl.dump

Class TableExport

java.lang.Object

org.apache.hadoop.hive.ql.parse.repl.dump.TableExport

public class TableExport
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TableExport.AuthEntities
static class	TableExport.Paths this class is responsible for giving various paths to be used during export along with root export directory creation.

Constructor Summary

Constructors

Constructor and Description
TableExport()
TableExport(TableExport.Paths paths, BaseSemanticAnalyzer.TableSpec tableSpec, ReplicationSpec replicationSpec, Hive db, String distCpDoAsUser, HiveConf conf, ExportWork.MmContext mmCtx)

Method Summary

Modifier and Type	Method and Description
TableExport.AuthEntities	getAuthEntities()
void	parallelWrite(ExportService exportService, boolean isExportTask, FileList fileList, boolean dataCopyAtLoad) Write table or partition data simultaneously using ExportService.
void	serialWrite(boolean isExportTask, FileList fileList, boolean dataCopyAtLoad) Write table or partition data one after another
protected void	write(boolean isExportTask, FileList fileList, boolean dataCopyAtLoad)

Methods inherited from class java.lang.Object

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

Constructor Detail

TableExport

public TableExport(TableExport.Paths paths,
                   BaseSemanticAnalyzer.TableSpec tableSpec,
                   ReplicationSpec replicationSpec,
                   Hive db,
                   String distCpDoAsUser,
                   HiveConf conf,
                   ExportWork.MmContext mmCtx)

TableExport

public TableExport()

Method Detail

serialWrite

public void serialWrite(boolean isExportTask,
                        FileList fileList,
                        boolean dataCopyAtLoad)
                 throws SemanticException

Write table or partition data one after another

Parameters:

isExportTask - Indicates whether task is export or not

fileList - List of files to be written

dataCopyAtLoad - Indicates whether data need to be distcp during load only or not

Throws:

SemanticException

parallelWrite

public void parallelWrite(ExportService exportService,
                          boolean isExportTask,
                          FileList fileList,
                          boolean dataCopyAtLoad)
                   throws HiveException

Write table or partition data simultaneously using ExportService. Create ExportJob to write data and submit it to the ExportService.

Parameters:

isExportTask - Indicates whether task is export or not

fileList - List of files to be written

dataCopyAtLoad - Indicates whether data need to be distcp during load only or not.

Throws:

HiveException

write

protected void write(boolean isExportTask,
                     FileList fileList,
                     boolean dataCopyAtLoad)
              throws SemanticException

Throws:

SemanticException

getAuthEntities

public TableExport.AuthEntities getAuthEntities()
                                         throws SemanticException

Throws:

SemanticException