以前就發現11g的Oracle有這個問題,一直沒有太在意,直到今天關閉資料庫的時候發現很長時間Oracle都無法正常關閉。
從後台查詢,探索資料庫出現錯誤提示:
SHUTDOWN: Active processes prevent shutdown operation
檢查資料庫後台進程,未發現佔用大量資源的串連,實際上整個資料庫中只有一個本地串連:
bash-3.00$ ps -ef|grep oraclerac11g2
oracle 22273 22272 0 19:59:51 ? 0:00 oraclerac11g2 (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
oracle 29307 22520 0 20:09:28 pts/2 0:00 grep oraclerac11g2
經過檢查發現,似乎是由於當前的SYS串連沒有退出,而直接通過HOST命令啟動了另一個sqlplus命令,並在其中執行了shutdown immediate操作,這時就會導致shutdown immediate被hang住:
$ sqlplus "/ as sysdba"
SQL*Plus: Release 11.1.0.6.0 - Production on 星期五 8月 22 19:49:35 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
串連到:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL> shutdown immediate資料庫已經關閉。已經卸載資料庫。
ORACLE 常式已經關閉。
SQL> startup
ORACLE 常式已經啟動。
Total System Global Area 1.7108E+10 bytes
Fixed Size 2101632 bytes
Variable Size 3344420480 bytes
Database Buffers 1.3757E+10 bytes
Redo Buffers 4431872 bytes資料庫裝載完畢。資料庫已經開啟。
下面啟動另一個會話,並以SYS登陸資料庫,然後嘗試關閉資料庫:
SQL> shutdown immediate資料庫已經關閉。已經卸載資料庫。
ORACLE 常式已經關閉。
探索資料庫可以正常關閉,然後根據剛才的描述,在sqlplus中切換到主機命令列,然後再新啟動一個sqlplus,執行shutdown immediate:
SQL> startup
ORACLE 常式已經啟動。
Total System Global Area 1.7108E+10 bytes
Fixed Size 2101632 bytes
Variable Size 3344420480 bytes
Database Buffers 1.3757E+10 bytes
Redo Buffers 4431872 bytes資料庫裝載完畢。資料庫已經開啟。
SQL> select count(*) from v$session;
COUNT(*)
----------
36
SQL> host
$ sqlplus "/ as sysdba"
SQL*Plus: Release 11.1.0.6.0 - Production on 星期五 8月 22 19:59:51 2008
Copyright (c) 1982, 2007, Oracle. All rights reserved.
串連到:
Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options
SQL> shutdown immediate
和預期的一樣,關閉命令被hang住了,檢查alert檔案就可以看到上面的提示資訊。
退出當前的會話,回到原始會話,並重新串連,就可以正常的關閉資料庫了:
SQL> shutdown immediate
^CORA-01013: 使用者請求取消當前的操作
SQL> exit從 Oracle Database 11g Enterprise Edition Release 11.1.0.6.0 - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options 斷開
$ exit
SQL> shutdown immediate
ORA-03135: 串連失去聯絡
SQL> conn / as sysdba已串連。
SQL> shutdown immediate資料庫已經關閉。已經卸載資料庫。
ORACLE 常式已經關閉。
而920版本的資料庫是沒有這個問題的:
[oracle@bjtest ~]$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on 星期六 8月 23 04:14:36 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
已串連到空閑常式。
SQL> host
[oracle@bjtest ~]$ ps -ef|grep ora
root 3804 3792 0 Jul18 ? 00:00:29 hald-addon-storage: polling /dev/hda
root 26417 26385 0 04:14 pts/1 00:00:00 su - oracle
oracle 26418 26417 0 04:14 pts/1 00:00:00 -bash
oracle 26451 26418 0 04:14 pts/1 00:00:00 sqlplus
oracle 26452 26451 0 04:14 ? 00:00:00 oraclebjtest (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))
oracle 26453 26451 0 04:14 pts/1 00:00:00 /bin/bash
oracle 26481 26453 0 04:14 pts/1 00:00:00 ps -ef
oracle 26482 26453 0 04:14 pts/1 00:00:00 grep ora
[oracle@bjtest ~]$ exit
exit
SQL> startup
ORACLE 常式已經啟動。
Total System Global Area 9415145752 bytes
Fixed Size 755992 bytes
Variable Size 822083584 bytes
Database Buffers 8589934592 bytes
Redo Buffers 2371584 bytes資料庫裝載完畢。資料庫已經開啟。
SQL> host
[oracle@bjtest ~]$ sqlplus "/ as sysdba"
SQL*Plus: Release 9.2.0.4.0 - Production on 星期六 8月 23 04:15:08 2008
Copyright (c) 1982, 2002, Oracle Corporation. All rights reserved.
串連到:
Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production
SQL> shutdown immediate資料庫已經關閉。已經卸載資料庫。
ORACLE 常式已經關閉。
SQL> exit從Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production中斷開
[oracle@bjtest ~]$ exit
exit
SQL> exit
ERROR:
ORA-03113: 通訊通道的檔案結束
從Oracle9i Enterprise Edition Release 9.2.0.4.0 - 64bit Production
With the Partitioning, OLAP and Oracle Data Mining options
JServer Release 9.2.0.4.0 - Production(情況複雜)中斷開