Tips：datapump異常中斷後的處理
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oracle數據庫在10g的時候推出datapump，expdp/impdp現已成為dba導數的常用工具了。上次客戶聯系說，在終止expdp進程後，系統空間還是在增長，可用空間越來越小。問了下客戶是怎麼關閉expdp的，說是一次ctrc+C，一次kill expdp進程....
expdp/impdp的啟動，是以job的形式在數據庫後台運行。如果只是關閉進程，或者異常退出，是無法停止expdp/impdp，因為job還是在數據庫裡運行。這個時候處理方式是關閉數據庫中expdp/impdp的job。
先登錄數據庫，確認expdp對應的job名稱
SQL> select job_name,state from dba_datapump_jobs;
JOB_NAME STATE
------------------------------ ------------------------------
SYS_EXPORT_TABLE_01 EXECUTING
SYS_EXPORT_TABLE_02 EXECUTING
果然數據庫有兩個expdp進程跑著呢...
正確的處理方式：
SQL> select job_name,state from dba_datapump_jobs;
JOB_NAME STATE
------------------------------ ------------------------------
SYS_EXPORT_FULL_01 EXECUTING
[oracle@ora11g dp_dir]$
[oracle@ora11g dp_dir]$ expdp \'/ as sysdba\' attach=SYS_EXPORT_FULL_01
Export: Release 11.2.0.4.0 - Production on Thu Dec 15 11:26:31 2016
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: SYS
Operation: EXPORT
Creator Privs: TRUE
GUID: 43AB008C575C06AAE053E638A8C0C450
Start Time: Thursday, 15 December, 2016 11:25:24
Mode: FULL
Instance: ora11g
Max Parallelism: 1
EXPORT Job Parameters:
Parameter Name Parameter Value:
CLIENT_COMMAND "/******** AS SYSDBA" DIRECTORY=dp_dir DUMPFILE=db.dump full=y
State: EXECUTING
Bytes Processed: 0
Current Parallelism: 1
Job Error Count: 0
Dump File: /home/oracle/dp_dir/db.dump
bytes written: 4,096
Worker 1 Status:
Process Name: DW00
State: EXECUTING
Object Schema: SYSMAN
Object Name: AQ$_MGMT_LOADER_QTABLE_G
Object Type: DATABASE_EXPORT/SCHEMA/TABLE/TABLE
Completed Objects: 1
Worker Parallelism: 1
Export> stop_job /stop_job=immediate
Are you sure you wish to stop this job ([yes]/no): yes
[oracle@ora11g dp_dir]$ expdp \'/ as sysdba\' attach=SYS_EXPORT_FULL_01
Export: Release 11.2.0.4.0 - Production on Thu Dec 15 11:27:27 2016
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: SYS
Operation: EXPORT
Creator Privs: TRUE
GUID: 43AB008C575C06AAE053E638A8C0C450
Start Time: Thursday, 15 December, 2016 11:27:30
Mode: FULL
Instance: ora11g
Max Parallelism: 1
EXPORT Job Parameters:
Parameter Name Parameter Value:
CLIENT_COMMAND "/******** AS SYSDBA" DIRECTORY=dp_dir DUMPFILE=db.dump full=y
State: IDLING
Bytes Processed: 0
Current Parallelism: 1
Job Error Count: 0
Dump File: /home/oracle/dp_dir/db.dump
bytes written: 4,096
Worker 1 Status:
Process Name: DW00
State: UNDEFINED
Export> kill_job
Are you sure you wish to stop this job ([yes]/no): yes
於是乎處理完畢。因此在expdp/impdp的時候不要隨意的kill或者終止進程。
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