expdp导出卡着不动的解决案例
现象描述，在执行expdp导出时，出现如下信息后，就一直卡着不动，不报错也不中断，一直卡。
Export: Release 10.2.0.5.0 - 64bit Production on Friday, 06 May, 2016 12:49:29
Copyright (c) 2003, 2007, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
一直卡在此处，不报错也不中断。
因为错误现象中并没有出现异常错误，告警日志及其他集群日志中也未查看到异常信息，就是一直卡死不动，长时间也不会自动中断，所以怀疑是dump进程夯死导致的。
在sql环境下查看dump工作执行情况：
SQL> select * from dba_datapump_jobs;
OWNER_NAME JOB_NAME
------------------------------ ------------------------------
OPERATION
------------------------------------------------------------
JOB_MODE
------------------------------------------------------------
STATE DEGREE ATTACHED_SESSIONS DATAPUMP_SESSIONS
------------------------------ ---------- ----------------- -----------------
GSAIC_PUB SYS_EXPORT_SCHEMA_02
EXPORT
SCHEMA
NOT RUNNING 0 0 0
OWNER_NAME JOB_NAME
------------------------------ ------------------------------
OPERATION
------------------------------------------------------------
JOB_MODE
------------------------------------------------------------
STATE DEGREE ATTACHED_SESSIONS DATAPUMP_SESSIONS
------------------------------ ---------- ----------------- -----------------
AN_REP SYS_EXPORT_SCHEMA_01
EXPORT
SCHEMA
NOT RUNNING 0 0 0
OWNER_NAME JOB_NAME
------------------------------ ------------------------------
OPERATION
------------------------------------------------------------
JOB_MODE
------------------------------------------------------------
STATE DEGREE ATTACHED_SESSIONS DATAPUMP_SESSIONS
------------------------------ ---------- ----------------- -----------------
GSAIC_PUB SYS_EXPORT_SCHEMA_01
EXPORT
SCHEMA
NOT RUNNING 0 0 0
可以看到有一些没有运行的job，但是资源还是没有释放。在oracle用户下尝试通过以下方式结束任务：
[oracle@gsdb1 ~]$ expdp xxx/xxx attach=SYS_EXPORT_SCHEMA_02
Export: Release 10.2.0.5.0 - 64bit Production on Friday, 06 May, 2016 12:55:41
Copyright (c) 2003, 2007, Oracle. All rights reserved.
Connected to: Oracle Database 10g Enterprise Edition Release 10.2.0.5.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
ORA-39002: invalid operation
ORA-39000: bad dump file specification
ORA-31640: unable to open dump file "/gsnfs/gsdbbackup/gsaic_pub_160302.dmp" for read
ORA-27037: unable to obtain file status
Linux-x86_64 Error: 2: No such file or directory
Additional information: 3
可以看到这些任务都已经成了僵尸任务，所以直接在数据库中通过以下方式释放：
SQL> drop table GSAIC_PUB.SYS_EXPORT_SCHEMA_02 purge;
Table dropped.
SQL> drop table GSAIC_PUB.SYS_EXPORT_SCHEMA_01 purge;
Table dropped.
SQL> drop table AN_REP.SYS_EXPORT_SCHEMA_01 purge;
Table dropped.
释放之后，可以看见卡着不动的expdp任务立马就开始向下继续执行，因为卡着的会话窗口一直没有关闭，所以能第一时间看见。
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转载于:http://blog.itpub.net/31403259/viewspace-2140788/