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标题：Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable

作者：惜分飞©版权所有[未经本人同意,不得以任何形式转载,否则有进一步追究法律责任的权利.]

1、检查alert日志发现错误

Wed Nov 30 13:36:47 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:48 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:48 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:49 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:50 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:51 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:52 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:52 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:53 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:54 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:55 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:56 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:56 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:57 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:57 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:36:58 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 13:37:12 2011
Some indexes or index [sub]partitions of table VAS.TAB_PUB_CALLLOG have been marked unusable
Wed Nov 30 22:00:09 2011
…………
Wed Nov 30 22:00:15 2011
GATHER_STATS_JOB encountered errors.  Check the trace file.
Wed Nov 30 22:00:15 2011
Errors in file /opt/oracle/admin/ora9i/bdump/ora9i_j001_21372.trc:
ORA-20000: index "VAS"."XN_CALLLOG_ANALYSIS_PK"  or partition of such index is in unusable state

2、查看trace文件

/opt/oracle/admin/ora9i/bdump/ora9i_j001_21372.trc
Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options
ORACLE_HOME = /opt/oracle/product/10.2.0/db_1
System name:    Linux
Node name:      localhost.localdomain
Release:        2.6.18-92.el5
Version:        #1 SMP Tue Apr 29 13:16:15 EDT 2008
Machine:        x86_64
Instance name: ora9i
Redo thread mounted by this instance: 1
Oracle process number: 42
Unix process pid: 21372, image: oracle@localhost.localdomain (J001)

*** 2011-11-30 22:00:15.782
*** ACTION NAME:(GATHER_STATS_JOB) 2011-11-30 22:00:15.763
*** MODULE NAME:(DBMS_SCHEDULER) 2011-11-30 22:00:15.763
*** SERVICE NAME:(SYS$USERS) 2011-11-30 22:00:15.763
*** SESSION ID:(532.60095) 2011-11-30 22:00:15.763
ORA-20000: index "VAS"."XN_CALLLOG_ANALYSIS_PK"  or partition of such index is in unusable state
*** 2011-11-30 22:00:15.782
GATHER_STATS_JOB: GATHER_TABLE_STATS('"VAS"','"TAB_XN_CALLLOG_ANALYSIS"','""', ...)
ORA-20000: index "VAS"."XN_CALLLOG_ANALYSIS_PK"  or partition of such index is in unusable state

3、日志初步结论
通过alert日志，感觉应该是对分区表操作，导致”VAS”.”XN_CALLLOG_ANALYSIS_PK”索引变成了unusable state，然后在数据库自动收集统计信息的时候报错(最大可能是全局index导致)

4、验证猜测是否正确

SQL> SELECT owner,index_name,table_name,status FROM DBA_indexes 
   2 WHERE index_name='XN_CALLLOG_ANALYSIS_PK' AND owner='VAS';
 
OWNER                          INDEX_NAME                     TABLE_NAME                     STATUS
------------------------------ ------------------------------ ------------------------------ --------
VAS                            XN_CALLLOG_ANALYSIS_PK         TAB_XN_CALLLOG_ANALYSIS        UNUSABLE

5、解决相关问题问题

SELECT 'ALTER INDEX ' || INDEX_OWNER || '.' || INDEX_NAME ||
'REBUILD PARTITION ' || PARTITION_NAME || ' NOLOGGING online;'
FROM DBA_IND_PARTITIONS
WHERE INDEX_OWNER NOT IN ('SYS', 'SYSTEM', 'PUBLIC')
AND STATUS = 'UNUSABLE'
UNION ALL
SELECT 'alter index ' ||OWNER || '.' || A.INDEX_NAME || ' REBUILD online nologging;'
FROM DBA_INDEXES A
WHERE OWNER NOT IN ('SYS', 'SYSTEM', 'PUBLIC')
AND STATUS = 'UNUSABLE';

执行生成sql，解决相关index unusable问题