题记:最近客户的一套订购数据库经常会因为数据及业务压力太大,在RMAN进行全备或是增备时,而此时业务有大量要处理时,系统资源就会被耗尽,会影响到业务的正常,所以常有时需要先终止掉RMAN备份,这里提供了我在处理过程中的方法,希望大家喜欢!
本文的目的就是在紧急状态下,需要立即终止正在进行的RMAN备份进程。
####查看RMAN备份进度,才40%
select sid,
serial#,
context,
sofar,
totalwork,
round (sofar / totalwork * 100, 2) "%_complete"
from v$session_longops
where opname like 'RMAN%'
and totalwork != 0
and opname not like '%aggregate%'
and sofar <> totalwork;
SQL> select sid,
2 serial#,
3 context,
4 sofar,
5 totalwork,
6 round (sofar / totalwork * 100, 2) "%_complete"
7 from v$session_longops
8 where opname like 'RMAN%'
9 and totalwork != 0
10 and opname not like '%aggregate%'
11 and sofar <> totalwork;
SID SERIAL# CONTEXT SOFAR TOTALWORK %_complete
---------- ---------- ---------- ---------- ---------- ----------
381 57130 1 10735600 27000832 39.76
SQL>
(1)查看RMAN分配的各个通道的进程号
SQL>
SELECT sid, spid, client_info
FROM v$process p, v$session s
WHERE p.addr = s.paddr
AND client_info LIKE '%rman%';
SID SPID CLIENT_INFO
---------- ------------------------ -------------------------
525 26244 rman channel=t1
1023 26245 rman channel=t2
699 26246 rman channel=t3
(2)根据第(1)中得到的进程号,终止RMAN备份
注:这里既要kill 掉RMAN备份脚本的PID,也要kill 掉RMAN中分配的各个通道的PID
subsdb1:~ # ps -ef | grep 26244
oracle 26244 26224 7 17:12 ? 00:01:49 oraclesubsdb (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
root 9877 9603 0 17:34 pts/11 00:00:00 grep 26244
subsdb1:~ # kill -9 26244
subsdb1:~ # ps -ef | grep 26245
oracle 26245 26224 5 17:12 ? 00:01:13 oraclesubsdb (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
root 9968 9603 0 17:35 pts/11 00:00:00 grep 26245
subsdb1:~ # kill -9 26245
subsdb1:~ # ps -ef | grep 26246
oracle 26246 26224 4 17:12 ? 00:01:03 oraclesubsdb (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
root 10009 9603 0 17:35 pts/11 00:00:00 grep 26246
subsdb1:~ # kill -9 26246
subsdb1:~ # ps -ef | grep rman
oracle 26224 25962 0 17:11 pts/3 00:00:03 rman target / nocatalog
root 10061 9603 0 17:35 pts/11 00:00:00 grep rman
subsdb1:~ # kill -9 26224
subsdb1:~ # ps -ef | grep rman
root 10102 9603 0 17:36 pts/11 00:00:00 grep rman
subsdb1:~ # ps -ef | grep 26246
root 10213 9603 0 17:36 pts/11 00:00:00 grep 26246
此时RMAN备份操作已经被终止。查看(1)中的SQL语句时,结果为空。
说明:如果单单kill掉RMAN的进程号,那么RMAN备份并没有停止,而是要连channel进程也一起掉才可以!