Heat Map and Automatic Data Optimization : part-2

上一篇测试了ADO的压缩功能 Heat Map and Automatic Data Optimization : part-1 下面测下ADO的存储层功能 简单的说下就是使用ado move 表、分区操作，把不是热数据的数据移动到性能低下的存储上 下面是工作的示意图 准备环境 SQL conn travel/aaConnected.?

上一篇测试了ADO的压缩功能 Heat Map and Automatic Data Optimization : part-1
下面测下ADO的存储层功能
简单的说下就是使用ado move 表、分区操作，把不是热数据的数据移动到性能低下的存储上
下面是工作的示意图

准备环境

SQL> conn travel/aa
Connected.
?
USERNAME             INST_NAME    HOST_NAME                 SID   SERIAL#  VERSION    STARTED  SPID            OPID  CPID            SADDR            PADDR
-------------------- ------------ ------------------------- ----- -------- ---------- -------- --------------- ----- --------------- ---------------- ----------------
TRAVEL               noncdb       localhost.localdomain     1     7        12.1.0.1.0 20140526 3209            7     2927            000000009F6CA108 000000009F9865B8
?
?
SQL> SELECT * FROM tab;
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TNAME                                                                                                                                                                                                                                                            TABTYPE         CLUSTERID
----------------------------------- -------------- ----------
HEAT_TEST                           TABLE
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SQL> 
SQL> conn / AS sysdba
Connected.
?
USERNAME             INST_NAME    HOST_NAME                 SID   SERIAL#  VERSION    STARTED  SPID            OPID  CPID            SADDR            PADDR
-------------------- ------------ ------------------------- ----- -------- ---------- -------- --------------- ----- --------------- ---------------- ----------------
SYS                  noncdb       localhost.localdomain     1     9        12.1.0.1.0 20140526 3234            7     2927            000000009F6CA108 000000009F9865B8
?
?
SQL> CREATE tablespace ado_t1 datafile '/oradata/noncdb/ado_t1.dbf' SIZE 200M;
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Tablespace created.
?
?
SQL> CREATE tablespace ado_t2 datafile '/oradata/noncdb/ado_t2.dbf' SIZE 200M;
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Tablespace created.
?
SQL> 
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SQL> CREATE TABLE ado_move tablespace ado_t1 AS SELECT * FROM dba_objects;
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TABLE created.
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SQL> INSERT INTO ado_move SELECT * FROM ado_move;
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90764 ROWS created.
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SQL> commit;
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Commit complete.
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SQL> INSERT INTO ado_move SELECT * FROM ado_move;
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181528 ROWS created.
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SQL> commit;
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Commit complete.
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SQL> INSERT INTO ado_move SELECT * FROM ado_move;
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363056 ROWS created.
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SQL> INSERT INTO ado_move SELECT * FROM ado_move;
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726112 ROWS created.
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SQL> commit;
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Commit complete.
?
SQL> @dba_tablespaces
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+------------------------------------------------------------------------+
| Report   : Tablespaces                                                 |
| Instance : noncdb                                                      |
| USER     : TRAVEL                                                      |
+------------------------------------------------------------------------+
?
STATUS    Tablespace Name           TS TYPE         Ext. Mgt.  Seg. Mgt.     Tablespace SIZE    Used (IN bytes) Pct. Used
--------- ------------------------- --------------- ---------- ---------- ------------------ ------------------ ---------
ONLINE    ADO_T1                    PERMANENT       LOCAL      AUTO              209,715,200        202,375,168        97
ONLINE    ADO_T2                    PERMANENT       LOCAL      AUTO              209,715,200          1,048,576         1
ONLINE    SYSAUX                    PERMANENT       LOCAL      AUTO              765,460,480        760,086,528        99
ONLINE    SYSTEM                    PERMANENT       LOCAL      MANUAL            817,889,280        811,401,216        99
ONLINE    TEMP                      TEMPORARY       LOCAL      MANUAL             91,226,112         90,177,536        99
ONLINE    UNDOTBS1                  UNDO            LOCAL      MANUAL            152,043,520        151,257,088        99
ONLINE    USERS                     PERMANENT       LOCAL      AUTO               66,846,720         15,400,960        23
                                                                          ------------------ ------------------ ---------
avg                                                                                                                    74
SUM                                                                            2,312,896,512      2,031,747,072
?
7 ROWS selected.

上面创建了2个表空间，并在表空间ADO_T1上创建了一个张表，插入大量数据，是空间使用率得到97%

下面查看下表的Heat map情况

SQL> ALTER system SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'
  2  
SQL> col owner FOR a20
SQL> col object_name FOR a20
SQL> col "Tracking Time" FOR a40
SQL> col "Seg write" FOR a20
SQL> 
SQL> pro DBA_HEAT_MAP_SEG_HISTOGRAM
DBA_HEAT_MAP_SEG_HISTOGRAM
SQL> SELECT object_name, to_char(track_time,'YYYY-MM-DD HH:MI:SS') "Tracking Time", 
  2  segment_write "Seg write", 
  3  FULL_SCAN "Full Scan", 
  4  lookup_scan "Lookup Scan"
  5  FROM DBA_HEAT_MAP_SEG_HISTOGRAM
  6  WHERE object_name=UPPER('ado_move');
?
OBJECT_NAME          Tracking TIME                            Seg WRITE            FULL S Lookup
-------------------- ---------------------------------------- -------------------- ------ ------
ADO_MOVE             2014-05-26 11:26:52                      YES                  YES    NO
?
SQL> 
SQL> 
SQL> pro DBA_HEAT_MAP_SEGMENT
DBA_HEAT_MAP_SEGMENT
SQL> 
SQL> SELECT owner,object_name,SEGMENT_WRITE_TIME,SEGMENT_READ_TIME,FULL_SCAN,LOOKUP_SCAN  
  2  FROM DBA_HEAT_MAP_SEGMENT
  3  WHERE object_name=UPPER('ado_move');
?
OWNER                OBJECT_NAME          SEGMENT_WRITE_TIM SEGMENT_READ_TIME FULL_SCAN         LOOKUP_SCAN
-------------------- -------------------- ----------------- ----------------- ----------------- -----------------
TRAVEL               ADO_MOVE             20140526 11:26:53                   20140526 11:26:53
?
SQL> 
?
SQL> 
SQL> SELECT OBJECT_NAME, TRACK_TIME, SEGMENT_WRITE "Seg_write", SEGMENT_READ "Seg_read", FULL_SCAN, LOOKUP_SCAN
  2       FROM v$heat_map_segment
  3       WHERE object_name=UPPER('ado_move');
?
OBJECT_NAME          TRACK_TIME        Seg_wr Seg_read             FULL_S LOOKUP
-------------------- ----------------- ------ -------------------- ------ ------
ADO_MOVE             20140526 11:28:49 YES    NO                   YES    NO

创建策略
SQL> ALTER TABLE ADO_MOVE ILM ADD POLICY TIER TO ADO_T2;
?
TABLE altered.
查看策略
SQL> COL policy_name format A12
SQL> COL TIER_TBS format A20
SQL> SELECT policy_name, action_type, scope,
  2               tier_tablespace "TIER_TBS"
  3       FROM  user_ilmdatamovementpolicies
  4       ORDER BY policy_name;
?
POLICY_NAME  ACTION_TYPE            SCOPE          TIER_TBS
------------ ---------------------- -------------- --------------------
P1           COMPRESSION            SEGMENT
P21          STORAGE                SEGMENT        ADO_T2
?
SQL> SELECT policy_name, object_name, inherited_from, enabled FROM user_ilmobjects;
?
POLICY_NAME  OBJECT_NAME          INHERITED_FROM                           ENABLE
------------ -------------------- ---------------------------------------- ------
P1           HEAT_TEST            POLICY NOT INHERITED                     NO
P21          ADO_MOVE             POLICY NOT INHERITED                     YES
?
SQL> SELECT * FROM dba_ilmparameters;
?
Tablespace Name                VALUE
------------------------- ----------
ENABLED                            1
JOB LIMIT                         10
EXECUTION MODE                     3
EXECUTION INTERVAL                15
TBS PERCENT USED                  85
TBS PERCENT FREE                  25
?
6 ROWS selected.
?
执行操作
SQL> DECLARE
  2  v_executionid NUMBER;
  3  BEGIN
  4  dbms_ilm.execute_ILM (ILM_SCOPE => dbms_ilm.SCOPE_SCHEMA,
  5              execution_mode => dbms_ilm.ilm_execution_offline,
  6              task_id   => v_executionid);
  7  END;
  8   /
?
PL/SQL PROCEDURE successfully completed.
?
SQL> @dba_tablespaces
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+------------------------------------------------------------------------+
| Report   : Tablespaces                                                 |
| Instance : noncdb                                                      |
| USER     : TRAVEL                                                      |
+------------------------------------------------------------------------+
?
STATUS    Tablespace Name           TS TYPE         Ext. Mgt.  Seg. Mgt.     Tablespace SIZE    Used (IN bytes) Pct. Used
--------- ------------------------- --------------- ---------- ---------- ------------------ ------------------ ---------
ONLINE    ADO_T1                    PERMANENT       LOCAL      AUTO              209,715,200        202,375,168        97
ONLINE    ADO_T2                    PERMANENT       LOCAL      AUTO              209,715,200          1,048,576         1
ONLINE    SYSAUX                    PERMANENT       LOCAL      AUTO              807,403,520        763,428,864        95
ONLINE    SYSTEM                    PERMANENT       LOCAL      MANUAL            817,889,280        811,401,216        99
ONLINE    TEMP                      TEMPORARY       LOCAL      MANUAL             91,226,112         90,177,536        99
ONLINE    UNDOTBS1                  UNDO            LOCAL      MANUAL            152,043,520        151,846,912       100
ONLINE    USERS                     PERMANENT       LOCAL      AUTO               66,846,720         15,400,960        23
                                                                          ------------------ ------------------ ---------
avg                                                                                                                    73
SUM                                                                            2,354,839,552      2,035,679,232
?
7 ROWS selected.
?
?
?
SQL>  COL job_name format A20
SQL>  COL object_name format A8
SQL>  COL task_id format 99999
SQL> 
SQL> SELECT task_id, state FROM user_ilmtasks;
?
TASK_ID STATE
------- ------------------
      2 COMPLETED
     62 COMPLETED
?
SQL> 
SQL> 
SQL>  COL object_name format A20
SQL>  col POLICY_NAME  FOR a10
SQL>  col SELECTED_FOR_EXECUTION FOR a80
SQL>  SELECT TASK_ID, POLICY_NAME, OBJECT_NAME,
  2  SELECTED_FOR_EXECUTION, JOB_NAME
  3   FROM user_ilmevaluationdetails;
?
TASK_ID POLICY_NAM OBJECT_NAME          SELECTED_FOR_EXECUTION                                                           JOB_NAME
------- ---------- -------------------- -------------------------------------------------------------------------------- --------------------
     62 P21        ADO_MOVE             SELECTED FOR EXECUTION                                                           ILMJOB122
     62 P1         HEAT_TEST            POLICY DISABLED
      2 P1         HEAT_TEST            SELECTED FOR EXECUTION                                                           ILMJOB42
?
SQL> 
SQL>  COL job_name format A20
SQL>  COL object_name format A8
SQL>  COL task_id format 99999
SQL> 
SQL> 
SQL> SELECT task_id, job_name, job_state FROM user_ilmresults;
?
TASK_ID JOB_NAME             JOB_STATE
------- -------------------- ----------------------------------------------------------------------
      2 ILMJOB42             COMPLETED SUCCESSFULLY
     62 ILMJOB122            FAILED
--发现任务失败，查看失败原因
?
?
?
SQL> col COMMENTS FOR a80
SQL> SELECT task_id, job_name, job_state,COMMENTS FROM user_ilmresults;
?
TASK_ID JOB_NAME             JOB_STATE                                                              COMMENTS
------- -------------------- ---------------------------------------------------------------------- --------------------------------------------------------------------------------
      2 ILMJOB42             COMPLETED SUCCESSFULLY
     62 ILMJOB122            FAILED                                                                 ORA-01652: unable TO extend temp segment BY 1024 IN tablespace ADO_T2
                                                                                                    ORA-06512: at line 1
?
     82 ILMJOB162            FAILED                                                                 ORA-01652: unable TO extend temp segment BY 1024 IN tablespace ADO_T2
                                                                                                    ORA-06512: at line 1
原因为表空间存储空间不够。。。。
?
SQL> 
?
?
增大数据文件
SQL> ALTER DATABASE datafile '/oradata/noncdb/ado_t2.dbf' resize 400m;
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DATABASE altered.
?
?
在此执行
SQL> DECLARE
  2  v_executionid NUMBER;
  3  BEGIN
  4  dbms_ilm.execute_ILM (ILM_SCOPE => dbms_ilm.SCOPE_SCHEMA,
  5              execution_mode => dbms_ilm.ilm_execution_offline,
  6              task_id   => v_executionid);
  7  END;
  8   /
?
PL/SQL PROCEDURE successfully completed.
?
SQL> 
SQL> SELECT task_id, job_name, job_state,COMMENTS FROM user_ilmresults;
?
TASK_ID JOB_NAME             JOB_STATE                                                              COMMENTS
------- -------------------- ---------------------------------------------------------------------- --------------------------------------------------------------------------------
      2 ILMJOB42             COMPLETED SUCCESSFULLY
     62 ILMJOB122            FAILED                                                                 ORA-01652: unable TO extend temp segment BY 1024 IN tablespace ADO_T2
                                                                                                    ORA-06512: at line 1
?
     82 ILMJOB162            FAILED                                                                 ORA-01652: unable TO extend temp segment BY 1024 IN tablespace ADO_T2
                                                                                                    ORA-06512: at line 1
?
    103 ILMJOB242            COMPLETED SUCCESSFULLY
?
成功完成
SQL> col TABLE_NAME FOR a20
SQL> /
?
TABLE_NAME           TABLESPACE_NAME
-------------------- ------------------------------------------------------------
ADO_MOVE             ADO_T2
HEAT_TEST            USERS

原文地址：Heat Map and Automatic Data Optimization : part-2, 感谢原作者分享。