ORACLE配置STATSPACK步驟

配置STATSPACK步驟

1.SQL*PLUS中輸入
SQL> connect sys/sys as sysdba;
SQL> alter system set job_queue_processes = 6; --自動執行數據收集時該參數需要大於0
System altered
SQL> alter system set timed_statistics = true;  
System altered
--使用statspack收集統計信息時建議將該值設置爲 TRUE，否則收集的統計信息大約只能起到10%的作用

SQL> @C:\oracle\ora92\rdbms\admin\spcreate.sql;
輸入 perfstat_password 的值:  perfstat
輸入default_tablespace的值:  perfstat
輸入temporary_tablespace 的值:  temp

NOTE:
SPCPKG complete. Please check spcpkg.lis for any errors.

--需要出現上述語句纔算成功，否則請查看.lis文件並執行，進行重建
SQL> @C:\oracle\ora92\rdbms\admin\spdrop.sql
SQL> @C:\oracle\ora92\rdbms\admin\spcreate.sql;

2.查看文件夾會產生三個文件
C:\oracle\ora92\bin
spcpkg.lis
spctab.lis
spcusr.lis

3.手動執行STATSPACK收集統計信息
SQL> show user
USER爲"PERFSTAT"
SQL> execute statspack.snap;

4.生成STATSPACK調整報告
SQL> @C:\oracle\ora92\rdbms\admin\spreport.sql;
Current Instance
~~~~~~~~~~~~~~~~
 
   DB Id    DB Name      Inst Num Instance
----------- ------------ -------- ------------
  357371480 COLM                1 colm
 
Instances in this Statspack schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   DB Id    Inst Num DB Name      Instance     Host
----------- -------- ------------ ------------ ------------
  357371480        1 COLM         colm         STEVENHUANG3
 
Using  357371480 for database Id
Using          1 for instance number
 
Completed Snapshots
 
                           Snap                    Snap
Instance     DB Name         Id   Snap Started    Level Comment
------------ ------------ ----- ----------------- ----- ----------------------
colm         COLM           1 11 10月 2006 21:5     5
                                0
                              2 11 10月 2006 21:5     5
                                0
 
 
 
Specify the Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
輸入 begin_snap 的值:  1
輸入 end_snap 的值:  2
End   Snapshot Id specified: 2
 
Specify the Report Name
~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is sp_1_2.  To use this name,
press <return> to continue, otherwise enter an alternative.
輸入 report_name 的值:  report1.txt
 
End of Report

5.查看產生的report1文檔
C:\oracle\ora92\bin\report1.txt
 
6.自動執行STATSPACK收集統計信息
SQL>@C:\oracle\ora92\rdbms\admin\spauto.sql;
 
Job number for automated statistics collection for this instance
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Note that this job number is needed when modifying or removing
the job:
     JOBNO
----------
         1
 
Job queue process
~~~~~~~~~~~~~~~~~
Below is the current setting of the job_queue_processes init.ora
parameter - the value for this parameter must be greater
than 0 to use automatic statistics gathering:
NAME_COL_PLUS_SHOW_PARAM
------------------------------------------------------------------------------
TYPE
----------------------
VALUE_COL_PLUS_SHOW_PARAM
------------------------------------------------------------------------------
job_queue_processes
integer
6
 
Next scheduled run
~~~~~~~~~~~~~~~~~~
The next scheduled run for this job is:
       JOB NEXT_DATE
---------- ----------
NEXT_SEC
----------------------------------------------------------------
         1 11-10月-06
23:00:00
 
spauto.sql中主要調用dbms_job.submit，默認每小時收集1次（1/24）
variable jobno number;
variable instno number;
begin
  select instance_number into :instno from v$instance;
  dbms_job.submit(:jobno,'statspack.snap;',trunc(sysdate+1/24,'HH'), 'trunc(SYSDATE+1/24,''HH'')', TRUE, :instno);
  commit;
end;
/
可以通過修改這個值設置採集時間
1/24 HH  每小時一次
1/48 MI  每半小時一次
1/144 MI  每十分鐘一次
1/288 MI  每五分鐘一次
 
7. 移除自動執行STATSPACK收集
SQL>select job,log_user,priv_user,last_date,next_date,interval from user_jobs; --先查看當前自動收集的jobs
SQL> execute dbms_job.remove('1');   --移除任務1
 
8．刪除統計資料（statspack相關的所有系統表）
SQL>select max(snap_id) from stats$snapshot;
SQL> @C:\oracle\ora92\rdbms\admin\sptrunc.sql;
 
Warning
~~~~~~~
Running sptrunc.sql removes ALL data from Statspack tables.  You may
wish to export the data before continuing.
 
About to Truncate Statspack Tables
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
If you would like to continue, press <return>
 
輸入 return 的值: 
Entered - starting truncate operation
 
 
9.參考資料
http://www.eygle.com/statspack/statspack00.htm
~
http://www.eygle.com/statspack/statspack13.htm
 

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/huanghui22/archive/2006/10/11/1330924.aspx

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/huanghui22/archive/2006/10/11/1330924.aspx

本文來自CSDN博客，轉載請標明出處：http://blog.csdn.net/huanghui22/archive/2006/10/11/1330924.aspx