CNDBA社区
在之前写的博客里讲过Oracle 10g 开始引入的数据泵功能：
Oracle 10g Data Pump Expdp/Impdp 详解
https://www.cndba.cn/Dave/article/1278
在文章里提到， 数据泵(expdp/impdp)实际的工作是在数据库服务端后台以JOB形式执行，也就是说我们执行数据泵命令实际上在数据库后台创建了一个JOB。 因此，加入我们想终止数据泵的工作，就不能向传统的导出导入命令(exp/imp), 直接kill进程就可以了。 要想kill 数据泵命令，必须连到后台进行操作。
一般来说，expdp/impdp 命令有一个参数：job_name=cndba, 如果没有指定这个参数，那么就需要通过DBA_DATAPUMP_JOBS试图来查询。
当然最简单的方式还是直接看expdp/impdp 命令，在执行的时候，他们也会显示当前JOB的名称，这样就不需要单独查询了。
SQL> select * from dba_datapump_jobs;
OWNER_NAME JOB_NAME OPERATION JOB_MODE STATE DEGREE ATTACHED_SESSIONS DATAPUMP_SESSIONS
------------------------------ ---------- ----------------- -----------------
SYSTEM SYS_EXPORT_FULL_01 EXPORT FULL UNDEFINED 1 1 2
另外expdp/impdp在执行时，有一个交互模式，在执行命令窗口，按Ctrl+C就可以进入交互模式，在交互模式，可以执行kill_job命令来结束expdp/impdp命令，否则他还会在后头继续执行。
[dave@www.cndba.cn ~]$ expdp system/oracle directory=DUMP_DIR full=y
Export: Release 11.2.0.4.0 - Production on Fri Jun 8 16:24:14 2018
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
FLASHBACK automatically enabled to preserve database integrity.
Starting "SYSTEM"."SYS_EXPORT_FULL_01": system/******** directory=DUMP_DIR full=y
Estimate in progress using BLOCKS method...
^C
Export> status
Job: SYS_EXPORT_FULL_01
Operation: EXPORT
Mode: FULL
State: EXECUTING
Bytes Processed: 0
Current Parallelism: 1
Job Error Count: 0
Dump File: /backup/expdat.dmp
bytes written: 4,096
Worker 1 Status:
Process Name: DW00
State: EXECUTING
Export> kill_job
Are you sure you wish to stop this job ([yes]/no): yes
[dave@www.cndba.cn ~]$
如果当前执行的终端窗口已经关闭了，还可以通过expdp/impdp的ATTACH来连接到之前的JOB。
[dave@www.cndba.cn ~]$ expdp system/oracle attach=SYS_EXPORT_FULL_01
Export: Release 11.2.0.4.0 - Production on Fri Jun 8 16:28:06 2018
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Job: SYS_EXPORT_FULL_01
Owner: SYSTEM
Operation: EXPORT
Creator Privs: TRUE
GUID: 6E1E2C8095271134E0535601A8C0D110
Start Time: Friday, 08 June, 2018 16:27:45
Mode: FULL
Instance: cndba
Max Parallelism: 1
EXPORT Job Parameters:
Parameter Name Parameter Value:
CLIENT_COMMAND system/******** directory=DUMP_DIR full=y
State: EXECUTING
Bytes Processed: 0
Current Parallelism: 1
Job Error Count: 0
Dump File: /backup/expdat.dmp
bytes written: 4,096
Worker 1 Status:
Process Name: DW00
State: EXECUTING
Object Name: +*
Object Type: DATABASE_EXPORT/TRUSTED_DB_LINK
Completed Objects: 1
Total Objects: 1
Worker Parallelism: 1
Export> kill_job
Are you sure you wish to stop this job ([yes]/no): yes
[dave@www.cndba.cn ~]$
Expdp/impdp命令的更多交互命令可以通过help进行查看，如下：
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.
版权声明：本文为博主原创文章，未经博主允许不得转载。
