Home Database Mysql Tutorial 监控数据备份恢复完成进度(EXPDP/IMPDP/RMAN)

监控数据备份恢复完成进度(EXPDP/IMPDP/RMAN)

Jun 07, 2016 pm 05:30 PM

监控数据备份恢复完成进度(EXPDP/IMPDP/RMAN)

一、查看EXPDP/IMPDP的进度
1 两个视图

当你当如导出的时候,如果数据量比较大,中途有些人会着急,不免想看看进度如何,利用两个视图就可以看:

DBA_DATAPUBMP_JOBS和DBA_DATAPUMP_SESSIONS视图

col owner_name for a10

col job_name for a20
col operation for a10
col job_mode for a10
col state for a20
col degree for a10
col  ATTACHED_SESSIONS for a30
col DATAPUMP_SESSIONS for a30
set linesize 200
格式化只是为了好看,也可以不用,直接用PL/SQL DEVELOPER图形工具。

可以使用DBA_DATAPUBMP_JOBS和DBA_DATAPUMP_SESSIONS视图来显示数据泵取作业的信息。
select * from DBA_DATAPUBMP_JOBS;
select * from DBA_DATAPUMP_SESSIONS;

select sid,serial# from v$session s,dba_datapump_sessions d where s.saddr=d.saddr;

补充一下,,前面的sql命令行格式化有点问题,number型的字段应该用9999xxx(多个9) 而不是axx,否则会出现一串串的#。

2 attach参数
1)查看任务进度
当你使用crontab后台任务运行导入导出任务的时候,想查看任务进度,该参数很有用,可以让你再次连接到已经断开的会话中,再次接管导出或导入的任务,当然你得先用前面2个视图查到jobname。
2)中途想停止crontab后台任务
此时,该参数非常好用。因为你不这样做,就得杀进程,而那么多进程,通常都会出错,如此暴利的杀进程方式,强烈滴不推荐。
举例:
假如之前后台任务的脚本中,有类似命令:

expdp system/xxx  DIRECTORY=DATA_PUMP_DIR2  parallel=32  DUMPFILE=xxxx-%U.dmp  filesize=50G  LOGFILE=xxx.log SCHEMAS=xxx  job_name=lurou.exp

ATTACH参数解释:将你的数据泵取客户机会话加入到一个运行的作业中,并使你进行交互方式。此参数只能与用户名/密码组合一起使用。

此时你可以使用如下命令重新连接任务,并达到提前终止任务的目的:

expdp system/xxx  attach=lurou.exp

连接进去之后再执行help命令可以查到停止任务的命令,这里就不列出来了

3 longops视图
另也可以通过v$session_longops视图来监控长期运行的会话。

4.通过语句查看impdp进度
SELECT  a.tablespace_name,
        ROUND (a.total_size) "total_size(MB)",
        ROUND (a.total_size) - ROUND (b.free_size, 3) "used_size(MB)",
        ROUND (b.free_size, 3) "free_size(MB)",
        ROUND (b.free_size / total_size * 100, 2) || '%' free_rate
  FROM  (  SELECT  tablespace_name, SUM (bytes) / 1024 / 1024 total_size
              FROM  dba_data_files
          GROUP BY  tablespace_name) a,
        (  SELECT  tablespace_name, SUM (bytes) / 1024 / 1024 free_size
              FROM  dba_free_space
          GROUP BY  tablespace_name) b

 WHERE  a.tablespace_name = b.tablespace_name(+);

二、查看RMAN备份进度

另外,查看rman的备份进度,可以用如下语句,记录备忘。

SELECT SID,OPNAME, SERIAL#, CONTEXT, SOFAR, TOTALWORK,

ROUND(SOFAR/TOTALWORK*100,2) "%_COMPLETE"
FROM V$SESSION_LONGOPS
WHERE OPNAME LIKE 'RMAN%'
AND OPNAME NOT LIKE '%aggregate%'
AND TOTALWORK != 0
AND SOFAR TOTALWORK
order by "%_COMPLETE"
desc

相关阅读:

通过expdp&impdp把11g的数据迁移到10g平台的要点

Oracle Data Pump使用范例及部分注意事项(expdp/impdp)

Oracle datapump expdp/impdp 导入导出数据库时hang住

expdp/impdp做Oracle 10g 到11g的数据迁移

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