Linux——oracle数据库实例启动关闭（转）

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Linux——oracle数据库实例启动关闭（转）

2024-07-24 17:50:25 218人阅读

-->Oracle 数据库实例启动关闭过程

--================================

[root@robinson ~]# su - oracle

--查看未启动实例前的进程情况

[oracle@robinson ~]$ ps -aef |grep oracle

root 3332 3300 0 12:20 pts/1 00:00:00 su - oracle

oracle 3333 3332 0 12:20 pts/1 00:00:00 -bash

oracle 3365 3333 0 12:20 pts/1 00:00:00 ps -aef

oracle 3366 3333 0 12:20 pts/1 00:00:00 grep oracle

--使用ipcs查看当前进程间通讯所用到的共享资源，内存段及信号量，

--可以看出当前无任何通信设备及共享资源

[oracle@robinson ~]$ ipcs -a

------ Shared Memory Segments --------

key shmid owner perms bytes nattch status

------ Semaphore Arrays --------

key semid owner perms nsems

------ Message Queues --------

key msqid owner perms used-bytes messages

--登陆到sqlplus

[oracle@robinson ~]$ sqlplus / as sysdba

SQL*Plus: Release 10.2.0.1.0 - Production on Thu Apr 29 13:07:29 2010

Connected to an idle instance.

--再次查看进程情况，多出了进程

SQL> !ps -aef | grep oracle

root 3332 3300 0 12:20 pts/1 00:00:00 su - oracle

oracle 3333 3332 0 12:20 pts/1 00:00:00 -bash

oracle 3972 3333 0 13:07 pts/1 00:00:00 sqlplus as sysdba

oracle 3973 3972 0 13:07 ? 00:00:00 oracleorcl (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))

oracle 3974 3972 0 13:07 pts/1 00:00:00 /bin/bash -c ps -aef | grep oracle

oracle 3975 3974 0 13:07 pts/1 00:00:00 ps -aef

--再次查看进程间通讯资源，同样是没有任何分配

SQL> !ipcs -a

------ Shared Memory Segments --------

key shmid owner perms bytes nattch status

------ Semaphore Arrays --------

key semid owner perms nsems

------ Message Queues --------

key msqid owner perms used-bytes messages

--启动到nomount

SQL> startup nomount

ORACLE instance started.

Total System Global Area 398458880 bytes

Fixed Size 1219640 bytes

Variable Size 117441480 bytes

Database Buffers 276824064 bytes

Redo Buffers 2973696 bytes

--可以看到多出了一些后台进程，即为Oracle的后台进程。从开始。

SQL> !ps -aef | grep oracle

root 3332 3300 0 12:20 pts/1 00:00:00 su - oracle

oracle 3333 3332 0 12:20 pts/1 00:00:00 -bash

oracle 3972 3333 0 13:07 pts/1 00:00:00 sqlplus as sysdba

oracle 3981 1 0 13:09 ? 00:00:00 ora_pmon_orcl

oracle 3983 1 0 13:09 ? 00:00:00 ora_psp0_orcl

oracle 3985 1 0 13:09 ? 00:00:00 ora_mman_orcl

oracle 3987 1 0 13:09 ? 00:00:00 ora_dbw0_orcl

oracle 3989 1 0 13:09 ? 00:00:00 ora_lgwr_orcl

oracle 3991 1 0 13:09 ? 00:00:00 ora_ckpt_orcl

oracle 3993 1 0 13:09 ? 00:00:00 ora_smon_orcl

oracle 3995 1 0 13:09 ? 00:00:00 ora_reco_orcl

oracle 3997 1 0 13:09 ? 00:00:00 ora_cjq0_orcl

oracle 3999 1 0 13:09 ? 00:00:00 ora_mmon_orcl

oracle 4001 1 0 13:09 ? 00:00:00 ora_mmnl_orcl

oracle 4003 1 0 13:09 ? 00:00:00 ora_d000_orcl

oracle 4005 1 0 13:09 ? 00:00:00 ora_s000_orcl

oracle 4006 3972 0 13:09 ? 00:00:00 oracleorcl (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))

oracle 4009 3972 0 13:10 pts/1 00:00:00 /bin/bash -c ps -aef | grep oracle

oracle 4010 4009 0 13:10 pts/1 00:00:00 ps -aef

--可以看到已经分配了SGA

SQL> !ipcs -a

------ Shared Memory Segments --------

key shmid owner perms bytes nattch status

0x99eb282c 65537 oracle 640 402653184 14

------ Semaphore Arrays --------

key semid owner perms nsems

0x6df43ca0 98304 oracle 640 127

0x6df43ca1 131073 oracle 640 127

0x6df43ca2 163842 oracle 640 127

------ Message Queues --------

key msqid owner perms used-bytes messages

--查看控制文件，没有任何数据，因为此阶段控制文件并没有打开

SQL> select * from v$controlfile;

no rows selected

--查看数据文件和日志文件，提示database not mounted

SQL> select * from v$datafile;

select * from v$datafile

ERROR at line 1:

ORA-01507: database not mounted

SQL> select * from v$logfile;

select * from v$logfile

ERROR at line 1:

ORA-01507: database not mounted

--切换到mount阶段

SQL> alter database mount;

Database altered.

--可以查看控制文件的相关信息

SQL> select * from v$controlfile;

STATUS NAME IS_ BLOCK_SIZE FILE_SIZE_BLKS

------- -------------------------------------------------- --- ---------- --------------

/u01/app/oracle/oradata/orcl/control01.ctl NO 16384 430

/u01/app/oracle/oradata/orcl/control02.ctl NO 16384 430

/u01/app/oracle/oradata/orcl/control03.ctl NO 16384 430

--可以查看数据文件的相关信息

SQL> select FILE#,STATUS,ENABLED,CHECKPOINT_CHANGE#,CHECKPOINT_TIME,ONLINE_TIME,NAME fromv$datafile;

FILE# STATUS ENABLED CHECKPOINT_CHANGE# CHECKPOIN ONLINE_TI NAME

---------- ------- ---------- ------------------ --------- --------- --------------------------------------------------

1 SYSTEM READ WRITE 2027235 28-APR-10 06-APR-10/u01/app/oracle/oradata/orcl/system01.dbf

2 ONLINE READ WRITE 2027235 28-APR-10 06-APR-10/u01/app/oracle/oradata/orcl/undotbs01.dbf

3 ONLINE READ WRITE 2027235 28-APR-10 06-APR-10/u01/app/oracle/oradata/orcl/sysaux01.dbf

4 ONLINE READ WRITE 2027235 28-APR-10 06-APR-10/u01/app/oracle/oradata/orcl/users01.dbf

5 ONLINE READ WRITE 2027235 28-APR-10 /u01/app/oracle/oradata/orcl/example01.dbf

6 ONLINE READ WRITE 2027235 28-APR-10 /u01/app/oracle/oradata/orcl/Test.dbf

7 ONLINE READ WRITE 2027235 28-APR-10 /u01/app/oracle/oradata/orcl/ORCL/datafile/o1_mf_s

_5vrl1t7h_.dbf

--可以查看日志文件的相关信息

SQL> select * from v$logfile;

GROUP# STATUS TYPE MEMBER IS_

---------- ------- ------- ------------------------------------------------------------ ---

3 ONLINE /u01/app/oracle/oradata/orcl/redo03.log NO

2 ONLINE /u01/app/oracle/oradata/orcl/redo02.log NO

1 ONLINE /u01/app/oracle/oradata/orcl/redo01.log NO

--数据不可访问，因为在此阶段，数据文件，日志文件并没有打开

SQL> select * from scott.emp;

select * from scott.emp

ERROR at line 1:

ORA-01219: database not open: queries allowed on fixed tables/views only

--切换到open 阶段

SQL> alter database open;

Database altered.

--再次查看进程信息，多出了之后的相关进程

SQL> !ps -aef | grep oracle

oracle 3981 1 0 13:09 ? 00:00:00 ora_pmon_orcl

oracle 3983 1 0 13:09 ? 00:00:00 ora_psp0_orcl

oracle 3985 1 0 13:09 ? 00:00:00 ora_mman_orcl

oracle 3987 1 0 13:09 ? 00:00:00 ora_dbw0_orcl

oracle 3989 1 0 13:09 ? 00:00:00 ora_lgwr_orcl

oracle 3991 1 0 13:09 ? 00:00:00 ora_ckpt_orcl

oracle 3993 1 0 13:09 ? 00:00:00 ora_smon_orcl

oracle 3995 1 0 13:09 ? 00:00:00 ora_reco_orcl

oracle 3997 1 0 13:09 ? 00:00:00 ora_cjq0_orcl

oracle 3999 1 0 13:09 ? 00:00:00 ora_mmon_orcl

oracle 4001 1 0 13:09 ? 00:00:00 ora_mmnl_orcl

oracle 4003 1 0 13:09 ? 00:00:00 ora_d000_orcl

oracle 4005 1 0 13:09 ? 00:00:00 ora_s000_orcl

root 4068 4036 0 13:29 pts/1 00:00:00 su - oracle

oracle 4069 4068 0 13:29 pts/1 00:00:00 -bash

oracle 4101 4069 0 13:29 pts/1 00:00:00 sqlplus

oracle 4102 4101 0 13:29 ? 00:00:01 oracleorcl (DESCRIPTION=(LOCAL=YES)(ADDRESS=(PROTOCOL=beq)))

oracle 4137 1 0 13:54 ? 00:00:00 ora_qmnc_orcl

oracle 4139 1 0 13:54 ? 00:00:01 ora_j000_orcl

oracle 4141 1 0 13:54 ? 00:00:00 ora_j001_orcl

oracle 4143 1 0 13:54 ? 00:00:00 ora_j002_orcl

oracle 4145 1 0 13:54 ? 00:00:00 ora_j003_orcl

oracle 4147 1 0 13:54 ? 00:00:00 ora_j004_orcl

oracle 4149 1 0 13:54 ? 00:00:00 ora_j005_orcl

oracle 4159 1 0 13:54 ? 00:00:00 ora_q001_orcl

oracle 4167 1 0 13:56 ? 00:00:00 ora_q002_orcl

oracle 4169 1 0 13:57 ? 00:00:00 ora_q003_orcl

oracle 4172 4101 0 13:58 pts/1 00:00:00 /bin/bash -c ps -aef | grep oracle

oracle 4173 4172 0 13:58 pts/1 00:00:00 ps -aef

--数据已可正常访问

SQL> select * from scott.emp where ename = ‘SCOTT‘;

EMPNO ENAME JOB MGR HIREDATE SAL COMM

---------- ---------- --------- ---------- --------- ---------- ----------

DEPTNO

----------

7788 SCOTT ANALYST 7566 19-APR-87 3000

--查看告警日志文件路径

SQL> show parameter background_dump_dest

NAME TYPE VALUE

------------------------------------ ----------- ------------------------------

background_dump_dest string /u01/app/oracle/admin/orcl/bdu

--查看动态性能视图

SQL> select sql_text,executions from v$sql where cpu_time >2000000;

SQL_TEXT

--------------------------------------------------------------------------------

EXECUTIONS

----------

select s.synonym_name object_name, o.object_type from all_synonyms s, sys.a

ll_objects o where s.owner in (‘PUBLIC‘, :schema) and o.owner = s.table_owner an

d o.object_name = s.table_name and o.object_type in (‘TABLE‘, ‘VIEW‘, ‘PACKAGE‘,

‘TYPE‘, ‘PROCEDURE‘, ‘FUNCTION‘, ‘SEQUENCE‘)

SQL> select username,status,server,state from v$session where program = ‘plsqldev.exe‘;

USERNAME STATUS SERVER STATE

------------------------------ -------- --------- -------------------

SYS INACTIVE DEDICATED WAITING

SQL> select sid,ctime from v$lock where sid = 275;

SID CTIME

-------

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Linux——oracle数据库实例启动关闭（转）

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首页 > 代码库 > Linux——oracle数据库实例启动关闭（转）

Linux——oracle数据库实例启动关闭（转）

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