• 【案例】ORA-01157 ORA-01110 ORA-06512: at "WMSYS.WM_CONCAT_IMPL", line 31


    数据库版本:Oracle11.2.0.4

    架构:2节点RAC、单实例DG

    问题描述:在RAC节点新增视图,可进行正常查询;但是在DG库查询视图是报错:

    查询DG状态是正常的,但是执行SQL的时候报出ORA-06512

    SQL>
    SQL> select count(*) from prod.VIEW_BI;
    select count(*) from prod.VIEW_BI
    *
    ERROR at line 1:
    ORA-01157: cannot identify/lock data file 201 - see DBWR trace file
    ORA-01110: data file 201: '+DATA'
    ORA-06512: at "WMSYS.WM_CONCAT_IMPL", line 31

    分析问题:

    主库信息:

    SYS@orcl1>select FILE_ID,FILE_NAME from dba_data_files;

    FILE_ID共计41

    SYS@orcl1> show parameter convert

    NAME TYPE VALUE
    ------------------------------------ ----------- ------------------------------
    db_file_name_convert string /u01/app/oracle/oradata/orcl/,+DATA/orcl/datafile/
    log_file_name_convert string /u01/app/oracle/archivelog/, +FRA/orcl/onlinelog/, /u01/app/oracle/archivelog/, +DATA/orcl/onlinelog/

    SYS@orcl1> select * from v$controlfile;

    STATUS NAME IS_ BLOCK_SIZE FILE_SIZE_BLKS
    ------- ---------------------------------------------------------------------- --- ---------- --------------
    +DATA/orcl/controlfile/current.258.1038497671 NO 16384 2330
    +FRA/orcl/controlfile/current.256.1038497671 YES 16384 2330

    SYS@orcl1> select name from v$tempfile;

    NAME
    ----------------------------------------------------------------------
    +DATA/orcl/tempfile/temp.264.1038497679
    +DATA/orcl/tempfile/temp_interface01.dbf

    备库信息:

    SYS@orcl1> select name from v$tempfile;

    NAME
    ----------------------------------------------------------------------

    +DATA

    +DATA/orcl/tempfile/temp.264.1038497679
    +DATA/orcl/tempfile/temp_interface01.dbf

    备库在执行SELECT查询的时候,排序会占用临时表空间,所以报出ORA-01157  ORA-01110  ORA-06512

    处理方式:

    对Oracle RAC、DG新增控制文件、临时表空间数据文件的目录转换关系
    SYS@orcl1> alter system set db_file_name_convert='/u01/app/oracle/oradata/orcl/','+DATA/orcl/datafile/','/u01/app/oracle/oradata/orcl/','+FRA/orcl/onlinelog/','+DATA/orcl/tempfile/','/u01/app/oracle/oradata/orcl/' scope=spfile;

    System altered.

    而在RAC两个节点修改db_file_name_convert参数之后,需要重启数据库,否则如果采用依次重启实例的话,两个节点参数不一致,实例不能启动。

    !!!!线上环境,不能重启主库,如何处理?

    只在备库操作:

    1、修改db_file_name_convert

    SYS@orcldg> alter system set db_file_name_convert='/u01/app/oracle/oradata/orcl/','+DATA/orcl/datafile/','/u01/app/oracle/oradata/orcl/','+FRA/orcl/onlinelog/','+DATA/orcl/tempfile/','/u01/app/oracle/oradata/orcl/' scope=spfile;

    System altered.

    重启备库,使得参数生效 。

    2、备库为read only,不能新增表空间,可以在原数据库临时表空间基础上,新增数据文件

    ALTER TABLESPACE TEMP ADD TEMPFILE '/u01/app/oracle/oradata/orcl/tempfile/temp1.dbf' size 1g autoextend on ;

    SQL> 
    SQL> select count(*) from prod.VIEW_BI;

    SQL> 20200321

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  • 原文地址:https://www.cnblogs.com/elontian/p/13330137.html
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