oracle statspack学习（一）
oracle statspack学习（一）
虽然 oracle statspac是在oracle 8 中出现的，statspack是一个强有力的oracle性能分析收集信息工具，指导现在依然有研究价值。
在创建statspace之前需要了解两个参数，如下：
JOB_QUEUE_PROCESSES:
JOB_QUEUE_PROCESSES specifies the maximum number of job slaves per instance that can be created for the execution of DBMS_JOB jobs and Oracle Scheduler (DBMS_SCHEDULER) jobs. DBMS_JOB and Oracle Scheduler share the same job coordinator and job slaves, and they are both controlled by the JOB_QUEUE_PROCESSES parameter.
If the value of JOB_QUEUE_PROCESSES is set to 0, then DBMS_JOB jobs and Oracle Scheduler jobs will not run on the instance.
timed_statistics
•true
The statistics are collected and stored in trace files or displayed in the V$SESSTATS and V$SYSSTATS dynamic performance views.
•false
The value of all time-related statistics is set to zero. This setting lets Oracle avoid the overhead of requesting the time from the operating system.
Starting with release 11.1.0.7.0, the value of the TIMED_STATISTICS parameter cannot be set to false if the value of STATISTICS_LEVEL is set to TYPICAL or ALL
1）创建statspack
创建步骤，
1、创建单独的表空间
2、运行创建脚本spcreate.sql
如下：
SQL> select file_name from dba_data_files;
FILE_NAME
--------------------------------------------------------------------------------
/opt/app/oracle/oradata/RHYS/users01.dbf
/opt/app/oracle/oradata/RHYS/undotbs01.dbf
/opt/app/oracle/oradata/RHYS/sysaux01.dbf
/opt/app/oracle/oradata/RHYS/system01.dbf
/opt/app/oracle/oradata/RHYS/example01.dbf
SQL> create tablespace statspack datafile '/opt/app/oracle/oradata/RHYS/statspack.dbf' size 500M autoextend off;
Tablespace created.
[oracle@oracle-one admin]$ ls -ltr sp*
-rw-r--r--. 1 oracle oinstall 588 Mar 15 2000 spuexp.par
-rw-r--r--. 1 oracle oinstall 1771 Mar 15 2000 spauto.sql
-rw-r--r--. 1 oracle oinstall 758 Jun 19 2000 spdrop.sql
-rw-r--r--. 1 oracle oinstall 1284 Apr 23 2001 spreport.sql
-rw-r--r--. 1 oracle oinstall 861 May 17 2002 spcreate.sql
-rw-r--r--. 1 oracle oinstall 1268 Oct 11 2002 sprepsql.sql
-rw-r--r--. 1 oracle oinstall 5193 Mar 31 2005 sprepcon.sql
-rw-r--r--. 1 oracle oinstall 23049 May 31 2005 spup10.sql
-rw-r--r--. 1 oracle oinstall 4924 Apr 10 2006 sppurge.sql
-rw-r--r--. 1 oracle oinstall 33823 Jun 27 2006 sprsqins.sql
-rw-r--r--. 1 oracle oinstall 20341 Jun 28 2007 spup102.sql
-rw-r--r--. 1 oracle oinstall 5071 Jun 28 2007 sptrunc.sql
-rw-r--r--. 1 oracle oinstall 228808 Oct 13 2008 spawrrac.sql
-rw-r--r--. 1 oracle oinstall 1825 Feb 11 2009 spdusr.sql
-rw-r--r--. 1 oracle oinstall 8374 May 14 2009 spup1101.sql
-rw-r--r--. 1 oracle oinstall 85202 Feb 23 2010 spawrio.sql
-rw-r--r--. 1 oracle oinstall 19808 Apr 20 2010 spup90.sql
-rw-r--r--. 1 oracle oinstall 24011 Apr 20 2010 spup817.sql
-rw-r--r--. 1 oracle oinstall 31334 Apr 20 2010 spup816.sql
-rw-r--r--. 1 oracle oinstall 4954 Aug 3 2010 spadvrpt.sql
-rw-r--r--. 1 oracle oinstall 4172 Aug 13 2010 spup11201.sql
-rw-r--r--. 1 oracle oinstall 158146 Aug 13 2010 spdoc.txt
-rw-r--r--. 1 oracle oinstall 42039 Aug 13 2010 spup92.sql
-rw-r--r--. 1 oracle oinstall 284125 Mar 6 2012 sprepins.sql
-rw-r--r--. 1 oracle oinstall 8229 Mar 6 2012 spdtab.sql
-rw-r--r--. 1 oracle oinstall 16396 Mar 6 2012 spcusr.sql
-rw-r--r--. 1 oracle oinstall 94461 Mar 6 2012 spctab.sql
-rw-r--r--. 1 oracle oinstall 212780 Mar 6 2012 spcpkg.sql
[oracle@oracle-one admin]$ more spcreate.sql
Rem
Rem $Header: spcreate.sql 16-apr-2002.11:22:55 vbarrier Exp $
Rem
Rem spcreate.sql
Rem
Rem Copyright (c) 1999, 2002, Oracle Corporation. All rights reserved.
Rem
Rem NAME
Rem spcreate.sql - Statistics Create
Rem
Rem DESCRIPTION
Rem SQL*PLUS command file which creates the STATSPACK user,
Rem tables and package for the performance diagnostic tool STATSPACK
Rem
Rem NOTES
Rem Note the script connects INTERNAL and so must be run from
Rem an account which is able to connect internal.
Rem
Rem MODIFIED (MM/DD/YY)
Rem cdialeri 02/16/00 - 1191805
Rem cdialeri 12/06/99 - 1103031
Rem cdialeri 08/13/99 - Created
Rem
--
-- Create PERFSTAT user and required privileges
@@spcusr
--
-- Build the tables and synonyms
connect perfstat/&&perfstat_password
@@spctab
-- Create the statistics Package
@@spcpkg
可以看到在创建statspack的时候是引用了两个脚本，一个为创建对象的spctab.sql另一个是创建包的spcpkg.sql
[oracle@oracle-one admin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Sat Sep 14 19:38:34 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> @?/rdbms/admin/spcreate
Choose the PERFSTAT user's password
-----------------------------------
Not specifying a password will result in the installation FAILING((((((((这是创建用户perfstat，并指定密码为：amy））））
Enter value for perfstat_password: amy
amy
Choose the Default tablespace for the PERFSTAT user
---------------------------------------------------
Below is the list of online tablespaces in this database which can
store user data. Specifying the SYSTEM tablespace for the user's
default tablespace will result in the installation FAILING, as
using SYSTEM for performance data is not supported.
Choose the PERFSTAT users's default tablespace. This is the tablespace（（（（（（（（选择创建的对象存放在那个表空间）））））
in which the STATSPACK tables and indexes will be created.
TABLESPACE_NAME CONTENTS STATSPACK DEFAULT TABLESPACE
------------------------------ --------- ----------------------------
EXAMPLE PERMANENT
STATSPACK PERMANENT
SYSAUX PERMANENT *
USERS PERMANENT
Pressing
tablespace (identified by *) being used.
Enter value for default_tablespace: statspack
Using tablespace STATSPACK as PERFSTAT default tablespace.
Choose the Temporary tablespace for the PERFSTAT user
-----------------------------------------------------
Below is the list of online tablespaces in this database which can
store temporary data (e.g. for sort workareas). Specifying the SYSTEM
tablespace for the user's temporary tablespace will result in the
installation FAILING, as using SYSTEM for workareas is not supported.（（（（（（（（（选择临时表空间）））））））
Choose the PERFSTAT user's Temporary tablespace.
TABLESPACE_NAME CONTENTS DB DEFAULT TEMP TABLESPACE
------------------------------ --------- --------------------------
TEMP TEMPORARY *
Pressing
tablespace (identified by *) being used.
Enter value for temporary_tablespace: temp
Using tablespace temp as PERFSTAT temporary tablespace.
... Creating PERFSTAT user
... Installing required packages
... Creating views
... Granting privileges
SQL> set echo off;
Creating Package STATSPACK...
Package created.
No errors.
Creating Package Body STATSPACK...
Package body created.
No errors.
NOTE:
SPCPKG complete. Please check spcpkg.lis for any errors.
SQL> !more spcpkg.lis
Creating Package STATSPACK...
Package created.
No errors.
Creating Package Body STATSPACK...
Package body created.
No errors.
NOTE:
SPCPKG complete. Please check spcpkg.lis for any errors.
SQL> !
至此statspack创建完成
创建完成之后可以看到数据库中多了一个PERFSTAT 用户。
2）创建自动收集系统性能信息的job
SQL> begin
2 select instance_number into :instno from v$instance;
3 dbms_job.submit(:jobno, 'statspack.snap;', trunc(sysdate+1/24,'HH'), 'trunc(SYSDATE+1/24,''HH'')', TRUE, :instno);
4 commit;
5 end;
6 /
使用spauto.sql脚本进行创建。
注意 此时为每一个小时运行一次，我们可以改成每半个小时运行一次为trunc（sysdate+1/48,'M')，每五分钟运行一次trunc（sysdate+/288,'MI')等等
SQL> conn perfstat/amy
Connected.
SQL> select job,priv_user,what from user_jobs;
SQL> set linesize 200
SQL> r
1* select job,priv_user,what from user_jobs
JOB PRIV_USER WHAT
---------- ------------------------------ --------------------------------------------------
23 PERFSTAT statspack.snap;
3）手动执行生成快照。
我们可以使用如下方式，手动执行快照收集，而不在等待job运行
SQL> execute statspack.snap;
PL/SQL procedure successfully completed.
SQL> execute statspack.snap;
PL/SQL procedure successfully completed.
4）删除该job
注意：删除oracle的job只能是在该用户下才能删除本用户的job，及时具有dba权限也不能删除其他用户的job。
SQL> conn sys/root as sysdba
Connected.
SQL> select job,priv_user from dba_jobs;
JOB PRIV_USER
---------- ------------------------------
4001 APEX_030200
4002 APEX_030200
3 SYSMAN
23 PERFSTAT
4 rows selected.
SQL> execute dbms_job.remove('23');
BEGIN dbms_job.remove('23'); END;
*
ERROR at line 1:
ORA-23421: job number 23 is not a job in the job queue
ORA-06512: at "SYS.DBMS_SYS_ERROR", line 86
ORA-06512: at "SYS.DBMS_IJOB", line 781
ORA-06512: at "SYS.DBMS_JOB", line 180
ORA-06512: at line 1
SQL> conn perfstat/amy
Connected.
SQL> execute dbms_job.remove('23');
PL/SQL procedure successfully completed.
SQL> select job,priv_user from user_jobs;
no rows selected
5）生成快照信息；
我们可以使用spreport.sql来生成快照信息：
在这个过程中其实生成的信息都是在statspack表空间中的各个表的信息收集的到的。
SQL> @?/rdbms/admin/spreport
Instances in this Statspack schema
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
DB Id Inst Num DB Name Instance Host
----------- -------- ------------ ------------ ------------
2738540715 1 RHYS RHYS oracle-one
Using 2738540715 for database Id
Using 1 for instance number
Specify the number of days of snapshots to choose from
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Entering the number of days (n) will result in the most recent
(n) days of snapshots being listed. Pressing
specifying a number lists all completed snapshots.
Listing all Completed Snapshots
Snap
Instance DB Name Snap Id Snap Started Level Comment
------------ ------------ --------- ----------------- ----- --------------------
RHYS RHYS 1 14 Sep 2013 19:52 5
2 14 Sep 2013 19:53 5
Specify the Begin and End Snapshot Ids
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Enter value for begin_snap: 1
Begin Snapshot Id specified: 1
Enter value for end_snap: 2
End Snapshot Id specified: 2
Specify the Report Name
~~~~~~~~~~~~~~~~~~~~~~~
The default report file name is sp_1_2. To use this name,
press
Enter value for report_name:
Using the report name sp_1_2（（（（（指定名字））））
STATSPACK report for
Database DB Id Instance Inst Num Startup Time Release RAC
~~~~~~~~ ----------- ------------ -------- --------------- ----------- ---
2738540715 RHYS 1 14-Sep-13 18:34 11.2.0.4.0 NO
Host Name Platform CPUs Cores Sockets Memory (G)
~~~~ ---------------- ---------------------- ----- ----- ------- ------------
oracle-one Linux x86 64-bit 1 0 0 1.2
Snapshot Snap Id Snap Time Sessions Curs/Sess Comment
~~~~~~~~ ---------- ------------------ -------- --------- ------------------
Begin Snap: 1 14-Sep-13 19:52:48 33 1.3
End Snap: 2 14-Sep-13 19:53:06 33 1.3
Elapsed: 0.30 (mins) Av Act Sess: 0.1
DB time: 0.03 (mins) DB CPU: 0.02 (mins)
Cache Sizes Begin End
~~~~~~~~~~~ ---------- ----------
Buffer Cache: 128M Std Block Size: 8K
Shared Pool: 124M Log Buffer: 3,604K
到这里，这个工具你算是会用了，但是要让它真的给dba带来问题的解决途径，那又是另一个深入问题了。那是一门艺术。
6）报告对应的数据表信息：
对于有哪些表，我们一个是可以看statspack创建脚本中的spctab.sql
create table STATS$DATABASE_INSTANCE
(dbid number not null
,instance_number number not null
,startup_time date not null
,snap_id number not null
,parallel varchar2(3) not null
,version varchar2(17) not null
,db_name varchar2(9) not null
,instance_name varchar2(16) not null
,host_name varchar2(64)
,platform_name varchar2(101)
,constraint STATS$DATABASE_INSTANCE_PK primary key
(dbid, instance_number, startup_time)
using index tablespace &&tablespace_name
storage (initial 1m next 1m pctincrease 0)
) tablespace &&tablespace_name
storage (initial 1m next 1m pctincrease 0) pctfree 5 pctused 40;
create public synonym STATS$DATABASE_INSTANCE for STATS$DATABASE_INSTANCE;
/* ------------------------------------------------------------------------- */
"spctab.sql" 2258L, 94461C
这都是内部创建的表，我们也可以直接查看。
7）删除report数据。
oracle 提供了两种方法，一种是delete，另一种是truncate
分别对应脚本sqpurge.sql和sptrunc.sql
[oracle@oracle-one admin]$ sqlplus / as sysdba
SQL*Plus: Release 11.2.0.4.0 Production on Sat Sep 14 20:47:57 2013
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
SQL> @?/rdbms/admin/sppurge
Database Instance currently connected to
========================================
Instance
DB Id DB Name Inst Num Name
----------- ---------- -------- ----------
2738540715 RHYS 1 RHYS
Snapshots for this database instance
。。。。。。。。。。。。。。。。。。。
SQL> @?/rdbms/admin/sptrunc
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 would like to exit WITHOUT truncating the tables, enter any text at the
begin_or_exit prompt (e.g. 'exit'), otherwise if you would like to begin
the truncate operation, press
Enter value for begin_or_exit:
Entered at the 'begin_or_exit' prompt
... Starting truncate operation
Table truncated.
Table truncated.
Table truncated.
Table truncated.
。。。。。。。。。。。。。。。。。
8）导出数据
statspack中的数据是存在于表中的，有时候需要对这些数据发送给support，那么statspack提供了导出数据的脚本为： spuexp.par
file=spuexp.dmp log=spuexp.log compress=y grants=y indexes=y rows=y constraints=y owner=PERFSTAT consistent=y
可以使用exp导出数据
eg：
[oracle@oracle-one admin]$ exp perfstat/amy parfile=./spuexp.par
Export: Release 11.2.0.4.0 - Production on Sat Sep 14 20:55:28 2013
Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved.
Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
Export done in US7ASCII character set and AL16UTF16 NCHAR character set
server uses WE8MSWIN1252 character set (possible charset conversion)
. exporting pre-schema procedural objects and actions
. exporting foreign function library names for user PERFSTAT
. exporting PUBLIC type synonyms
. exporting private type synonyms
. exporting object type definitions for user PERFSTAT
About to export PERFSTAT's objects ...
. exporting database links
. exporting sequence numbers
. exporting cluster definitions
. about to export PERFSTAT's tables via Conventional Path ...
. . exporting table STATS$BUFFERED_QUEUES 0 rows exported
. . exporting table STATS$BUFFERED_SUBSCRIBERS 0 rows exported
. . exporting table STATS$BUFFER_POOL_STATISTICS 1 rows exported
. . exporting table STATS$CR_BLOCK_SERVER 0 rows exported
. . exporting table STATS$CURRENT_BLOCK_SERVER 0 rows exported
. . exporting table STATS$DATABASE_INSTANCE 1 rows exported
. . exporting table STATS$DB_CACHE_ADVICE 21 rows exported
. . exporting table STATS$DLM_MISC 0 rows exported
. . exporting table STATS$DYNAMIC_REMASTER_STATS 0 rows exported
. . exporting table STATS$ENQUEUE_STATISTICS 75 rows exported
. . exporting table STATS$EVENT_HISTOGRAM 537 rows exported
. . exporting table STATS$FILESTATXS 6 rows exported
. . exporting table STATS$FILE_HISTOGRAM 35 rows exported
. . exporting table STATS$IDLE_EVENT 135 rows exported
. . exporting table STATS$INSTANCE_CACHE_TRANSFER 0 rows exported
. . exporting table STATS$INSTANCE_RECOVERY 1 rows exported
. . exporting table STATS$INTERCONNECT_PINGS 0 rows exported
. . exporting table STATS$IOSTAT_FUNCTION 14 rows exported
. . exporting table STATS$IOSTAT_FUNCTION_NAME 14 rows exported
. . exporting table STATS$JAVA_POOL_ADVICE 10 rows exported
. . exporting table STATS$LATCH 582 rows exported
. . exporting table STATS$LATCH_CHILDREN 0 rows exported
. . exporting table STATS$LATCH_MISSES_SUMMARY 19 rows exported
. . exporting table STATS$LATCH_PARENT 0 rows exported
. . exporting table STATS$LEVEL_DESCRIPTION 5 rows exported
. . exporting table STATS$LIBRARYCACHE 20 rows exported
. . exporting table STATS$MEMORY_DYNAMIC_COMPS 16 rows exported
. . exporting table STATS$MEMORY_RESIZE_OPS 56 rows exported
. . exporting table STATS$MEMORY_TARGET_ADVICE 6 rows exported
. . exporting table STATS$MUTEX_SLEEP 4 rows exported
. . exporting table STATS$OSSTAT 20 rows exported
. . exporting table STATS$OSSTATNAME 20 rows exported
. . exporting table STATS$PARAMETER 362 rows exported
. . exporting table STATS$PGASTAT 14 rows exported
. . exporting table STATS$PGA_TARGET_ADVICE 14 rows exported
. . exporting table STATS$PROCESS_MEMORY_ROLLUP 67 rows exported
. . exporting table STATS$PROCESS_ROLLUP 21 rows exported
. . exporting table STATS$PROPAGATION_RECEIVER 0 rows exported
. . exporting table STATS$PROPAGATION_SENDER 0 rows exported
. . exporting table STATS$RESOURCE_LIMIT 4 rows exported
. . exporting table STATS$ROLLSTAT 11 rows exported
. . exporting table STATS$ROWCACHE_SUMMARY 57 rows exported
. . exporting table STATS$RULE_SET 1 rows exported
. . exporting table STATS$SEG_STAT 0 rows exported
. . exporting table STATS$SEG_STAT_OBJ 0 rows exported
. . exporting table STATS$SESSION_EVENT 0 rows exported
. . exporting table STATS$SESSTAT 0 rows exported
. . exporting table STATS$SESS_TIME_MODEL 0 rows exported
. . exporting table STATS$SGA 4 rows exported
. . exporting table STATS$SGASTAT 27 rows exported
. . exporting table STATS$SGA_TARGET_ADVICE 6 rows exported
. . exporting table STATS$SHARED_POOL_ADVICE 21 rows exported
. . exporting table STATS$SNAPSHOT 1 rows exported
. . exporting table STATS$SQLTEXT 399 rows exported
. . exporting table STATS$SQL_PLAN 0 rows exported
. . exporting table STATS$SQL_PLAN_USAGE 0 rows exported
EXP-00091: Exporting questionable statistics.
. . exporting table STATS$SQL_STATISTICS 1 rows exported
. . exporting table STATS$SQL_SUMMARY 71 rows exported
. . exporting table STATS$SQL_WORKAREA_HISTOGRAM 8 rows exported
. . exporting table STATS$STATSPACK_PARAMETER 1 rows exported
. . exporting table STATS$STREAMS_APPLY_SUM 0 rows exported
. . exporting table STATS$STREAMS_CAPTURE 0 rows exported
. . exporting table STATS$STREAMS_POOL_ADVICE 0 rows exported
. . exporting table STATS$SYSSTAT 679 rows exported
. . exporting table STATS$SYSTEM_EVENT 71 rows exported
. . exporting table STATS$SYS_TIME_MODEL 19 rows exported
. . exporting table STATS$TEMPSTATXS 1 rows exported
. . exporting table STATS$TEMP_SQLSTATS
. . exporting table STATS$THREAD 1 rows exported
. . exporting table STATS$TIME_MODEL_STATNAME 19 rows exported
. . exporting table STATS$UNDOSTAT 14 rows exported
. . exporting table STATS$WAITSTAT 18 rows exported
. exporting synonyms
. exporting views
. exporting stored procedures
. exporting operators
. exporting referential integrity constraints
. exporting triggers
. exporting indextypes
. exporting bitmap, functional and extensible indexes
. exporting posttables actions
. exporting materialized views
. exporting snapshot logs
. exporting job queues
. exporting refresh groups and children
. exporting dimensions
. exporting post-schema procedural objects and actions
. exporting statistics
Export terminated successfully with warnings.
[oracle@oracle-one admin]$
从这里，可以看到了很多关于report的表
9）对单独sql hast值进行生成sql报告
statspack提供了sprepsql.sql脚本
10）删除statspack
提供了一个删除脚本为：
SQL> @?/rdbms/admin/spdrop.sql
Synonym dropped.
Sequence dropped.
Synonym dropped.
Table dropped.
Synonym dropped.
Table dropped.
Synonym dropped.
。。。。。。。。。。。。。。。