expdp导出工具可以实现在导出任务执行过程中修改并行度、终止、监控任务功能。
做实验验证一下：
[oracle@test dpdump]$ expdp system/password directory=DATA_PUMP_DIR dumpfile=alphaFull full=y job_name=alphaFull Export: Release 11.2.0.3.0 - Production on Fri Dec 20 17:03:30 2013 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options Starting "SYSTEM"."ALPHAFULL": system/******** directory=DATA_PUMP_DIR dumpfile=alphaFull full=y job_name=alphaFull Estimate in progress using BLOCKS method... Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE_DATA Total estimation using BLOCKS method: 76.37 MB Processing object type DATABASE_EXPORT/TABLESPACE …… …… Processing object type DATABASE_EXPORT/SYSTEM_PROCOBJACT/PRE_SYSTEM_ACTIONS/PROCACT_SYSTEM ^C Export> help ------------------------------------------------------------------------------ The following commands are valid while in interactive mode. Note: abbreviations are allowed. ADD_FILE Add dumpfile to dumpfile set. CONTINUE_CLIENT Return to logging mode. Job will be restarted if idle. EXIT_CLIENT Quit client session and leave job running. FILESIZE Default filesize (bytes) for subsequent ADD_FILE commands. HELP Summarize interactive commands. KILL_JOB Detach and delete job. PARALLEL Change the number of active workers for current job. REUSE_DUMPFILES Overwrite destination dump file if it exists [N]. START_JOB Start or resume current job. Valid keyword values are: SKIP_CURRENT. STATUS Frequency (secs) job status is to be monitored where the default [0] will show new status when available. STOP_JOB Orderly shutdown of job execution and exits the client. Valid keyword values are: IMMEDIATE. Export> CONTINUE_CLIENT Processing object type DATABASE_EXPORT/SYSTEM_PROCOBJACT/PROCOBJ Processing object type DATABASE_EXPORT/SYSTEM_PROCOBJACT/POST_SYSTEM_ACTIONS/PROCACT_SYSTEM Processing object type DATABASE_EXPORT/SCHEMA/PROCACT_SCHEMA Processing object type DATABASE_EXPORT/SCHEMA/TABLE/TABLE Processing object type DATABASE_EXPORT/SCHEMA/TABLE/PRE_TABLE_ACTION Job "SYSTEM"."ALPHAFULL" stopped by user request at 17:05:26
另打开一个terminal：这里指定attach参数为刚才的job_name参数
[oracle@test ~]$ expdp system/password attach=alphaFull Export: Release 11.2.0.3.0 - Production on Fri Dec 20 17:04:07 2013 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, OLAP, Data Mining and Real Application Testing options Job: ALPHAFULL Owner: SYSTEM Operation: EXPORT Creator Privs: TRUE GUID: EDF48D67526907E6E043646EA8C00CB2 Start Time: Friday, 20 December, 2013 17:03:37 Mode: FULL Instance: orcl Max Parallelism: 1 EXPORT Job Parameters: Parameter Name Parameter Value: CLIENT_COMMAND system/******** directory=DATA_PUMP_DIR dumpfile=alphaFull full=y job_name=alphaFull State: EXECUTING Bytes Processed: 0 Current Parallelism: 1 Job Error Count: 0 Dump File: /s01/app/oracle/admin/orcl/dpdump/alphaFull.dmp bytes written: 4,096 Worker 1 Status: Process Name: DW00 State: EXECUTING Object Schema: SYSMAN Object Name: AQ$_MGMT_LOADER_QTABLE_N Object Type: DATABASE_EXPORT/SCHEMA/SEQUENCE/SEQUENCE Completed Objects: 51 Total Objects: 51 Worker Parallelism: 1 Export> STOP_JOB Are you sure you wish to stop this job ([yes]/no): yes
在这里STOP_JOB之后，在任务执行的session可以看到
Job "SYSTEM"."ALPHAFULL" stopped by user request at 17:05:26