记录一次oer 8102.2处理(转)

转自:http://www.xifenfei.com/2264.html

作者:惜分飞

1.alert日志

Tue Dec 20 22:09:45 2011
Errors in file /opt/app/oracle/admin/BAS/bdump/bas_m000_27442 .trc:
Wed Dec 21 22:10:45 2011
Errors in file /opt/app/oracle/admin/BAS/bdump/bas_m000_32761 .trc:
Thu Dec 22 22:11:46 2011
Errors in file /opt/app/oracle/admin/BAS/bdump/bas_m000_5935 .trc:
Fri Dec 23 22:12:47 2011
Errors in file /opt/app/oracle/admin/BAS/bdump/bas_m000_11382 .trc:

Mnnn performs manageability tasks dispatched to them by MMON. Tasks performed include taking Automatic Workload Repository snapshots and Automatic Database Diagnostic Monitor analysis.
从这个时间点来看,应该是数据库启动GATHER_STATS_JOB收集统计信息时发现这个错误。

2.bas_m000_11382.trc

Oracle Database 10g Enterprise Edition Release 10.2.0.1.0 - 64bit Production
With the Partitioning, OLAP and Data Mining options
ORACLE_HOME = /opt/app/oracle/product/10 .2.0 /db_1
System name:    Linux
Node name:      bas
Release:        2.6.9-78.ELsmp
Version:        #1 SMP Wed Jul 9 15:46:26 EDT 2008
Machine:        x86_64
Instance name: BAS
Redo thread mounted by this instance: 1
Oracle process number: 24
Unix process pid: 11382, image: oracle@bas (m000)
 
*** ACTION NAME:(Auto-Purge Slave Action) 2011-12-23 22:12:47.074
*** MODULE NAME:(MMON_SLAVE) 2011-12-23 22:12:47.074
*** SERVICE NAME:(SYS$BACKGROUND) 2011-12-23 22:12:47.074
*** SESSION ID:(5465.2033) 2011-12-23 22:12:47.074
oer 8102.2 - obj # 4152, rdba: 0x00401f7c(afn 1, blk# 8060)
kdk key 8102.2:
   ncol: 2, len: 10
   key: (10):  02 c1 0a 06 00 c0 04 dc 00 00
   mask: (4096):
  09 00 00 00 00 fb d1 c0 00 00 00 00 00 70 f8 fe bf 7f 00 00 00 cd 7d 5d 01
oer 8102.<code> - obj # <object id>, rdba: <rdba value>(afn <file#>, blk# <block#>)
kdk key 8102.2:
ncol: <number of columns in the key including the rowid>, len: <key length>
key: (<length>):<hexadecimal value>
 
obj #:   object_id for the affected index in dba_objects.
rdba:   relative data block address where the key is supposed to be stored in the index.
afn:     absolute file number where the affected index block is stored.
(file_id in dba_data_files, file # in v$datafile).
blk #:   Index block number where the key is supposed to be stored.

出现oer 8102.2的错误,有两种可能:1.坏块,2.表和索引数据不一致

3.找出相关对象

SQL> col object_name for a30
SQL> col owner for a10
SQL> select object_name,owner,object_type
   from dba_objects where object_id=4152;
 
OBJECT_NAME                    OWNER      OBJECT_TYPE
------------------------------ ---------- -------------------
WRI$_SEGADV_OBJLIST_IDX_TS     SYS        INDEX
 
SQL> select OWNER,TABLE_NAME from dba_indexes
    2 where index_name= 'WRI$_SEGADV_OBJLIST_IDX_TS' ;
 
OWNER      TABLE_NAME
---------- ------------------------------
SYS        WRI$_SEGADV_OBJLIST
 
SQL> ANALYZE TABLE sys.WRI$_SEGADV_OBJLIST VALIDATE STRUCTURE CASCADE ;
ANALYZE TABLE sys.WRI$_SEGADV_OBJLIST VALIDATE STRUCTURE CASCADE
*
ERROR at line 1:
ORA-01499: table / index cross reference failure - see trace file

4.分析坏块(逻辑/物理)

SQL> ANALYZE INDEX WRI$_SEGADV_OBJLIST_IDX_TS VALIDATE STRUCTURE;
 
Index analyzed.
 
SQL> ANALYZE TABLE WRI$_SEGADV_OBJLIST VALIDATE STRUCTURE;
 
Table analyzed.
 
[oracle@bas bdump]$ dbv file = /opt/app/oracle/oradata/BAS/system01 .dbf
 
DBVERIFY: Release 10.2.0.1.0 - Production on Sat Dec 24 21:14:38 2011
 
Copyright (c) 1982, 2005, Oracle.  All rights reserved.
 
DBVERIFY - Verification starting : FILE = /opt/app/oracle/oradata/BAS/system01 .dbf
 
 
DBVERIFY - Verification complete
 
Total Pages Examined         : 552960
Total Pages Processed (Data) : 360156
Total Pages Failing   (Data) : 0
Total Pages Processed (Index): 167596
Total Pages Failing   (Index): 0
Total Pages Processed (Other): 1961
Total Pages Processed (Seg)  : 0
Total Pages Failing   (Seg)  : 0
Total Pages Empty            : 23247
Total Pages Marked Corrupt   : 0
Total Pages Influx           : 0
Highest block SCN            : 2890198330 (2750.2890198330)

检测证明,对象以及对象所属的数据文件,无坏块现象

5.分析表和index不一致

--找出index对应列
SQL> SELECT table_name , column_name from dba_ind_columns 
   WHERE index_name= 'WRI$_SEGADV_OBJLIST_IDX_TS' order by table_name;
 
TABLE_NAME                     COLUMN_NAME
------------------------------ --------------------
WRI$_SEGADV_OBJLIST            TS_ID
 
--确定对应列是否允许为null
SQL> desc WRI$_SEGADV_OBJLIST
  Name                                      Null ?    Type
  ----------------------------------------- -------- ----------------------------
  AUTO_TASKID                                        NUMBER
  TS_ID                                              NUMBER
  OBJN                                               NUMBER
  OBJD                                               NUMBER
  STATUS                                             VARCHAR2(40)
  TASK_ID                                            NUMBER
  REASON                                             VARCHAR2(40)
  REASON_VALUE                                       NUMBER
  CREATION_TIME                                      TIMESTAMP (6)
  PROC_TASKID                                        NUMBER
  END_TIME                                           TIMESTAMP (6)
  SEGMENT_OWNER                                      VARCHAR2(30)
  SEGMENT_NAME                                       VARCHAR2(81)
  PARTITION_NAME                                     VARCHAR2(30)
  SEGMENT_TYPE                                       VARCHAR2(18)
  TABLESPACE_NAME                                    VARCHAR2(30)
 
--确认在表中对应列是否有空值
SQL> SELECT /*+ FULL (t1) */ count (TS_ID)
   2   FROM WRI$_SEGADV_OBJLIST t1
   3    WHERE t1.TS_ID IS NULL ;
 
COUNT (TS_ID)
------------
            0
--表比index多数据
SQL> SELECT /*+ FULL (t1) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t1
   3  MINUS
   SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t where  ts_id is not null ;
 
no rows selected
 
 
--index中数据条数
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ count (TS_ID)
   FROM WRI$_SEGADV_OBJLIST t
   where ts_id is not null ;
 
COUNT (TS_ID)
------------
          901
 
--表中数据条数
SQL> SELECT /*+ FULL (t1) */ count (TS_ID)
   FROM WRI$_SEGADV_OBJLIST t1 ;
 
COUNT (TS_ID)
------------
          937
 
--index中不同值数量
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */
   COUNT ( DISTINCT TS_ID)
   FROM WRI$_SEGADV_OBJLIST t WHERE TS_ID IS NOT NULL ;
 
COUNT (DISTINCTTS_ID)
--------------------
                    5
--表中不同值数量
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t WHERE ts_id IS NOT NULL
   3  MINUS
   SELECT /*+ FULL (t1) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t1 ;
 
      TS_ID
----------
          4
--对比可以知道index中的唯一值比表中,这个也就解释了,为什么表中总条数多,
--但是他们两做减法的时候,记录为空
 
--索引表比表多数据
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t WHERE ts_id IS NOT NULL
   3  MINUS
   SELECT /*+ FULL (t1) */ TS_ID
   FROM WRI$_SEGADV_OBJLIST t1 ;
 
      TS_ID
----------
          4

上面的检测证明:1.表中有索引中无的数据,2.索引中有表中不存在数据

6.解决问题

SQL> alter index WRI$_SEGADV_OBJLIST_IDX_TS rebuild online;
 
Index altered.
 
--测试index中总条数
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ count (TS_ID)
   2   FROM WRI$_SEGADV_OBJLIST t
   3    where  ts_id is not null ;
 
COUNT (TS_ID)
------------
          937
 
--无多余index项(以前唯一值为4的记录已经不存在)
SQL> SELECT /*+ index (t WRI$_SEGADV_OBJLIST_IDX_TS) */ TS_ID
   2      FROM WRI$_SEGADV_OBJLIST t WHERE ts_id IS NOT NULL
   3    MINUS
   4      SELECT /*+ FULL (t1) */ TS_ID
   5      FROM WRI$_SEGADV_OBJLIST t1 ;
 
no rows selected
 
--通过上述测试,证明表和index不一致问题解决

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