Oracle：ORA-00392: log 3 of thread 1 is being cleared, operation not allowed

原文地址：http://d-prototype.com/archives/5249

如题所示的问题发生在数据库的启动过程中，具体如下：

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[oracle@oradg2 dbs]$ sqlplus / as sysdba SQL*Plus: Release 11.2.0.4.0 Production on Sat Jun 18 08:15:57 2016 Copyright (c) 1982, 2013, Oracle.  All rights reserved.  Connected to:Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit ProductionWith the Partitioning, OLAP, Data Mining and Real Application Testing options SQL> select instance_name,status from v$instance; INSTANCE_NAME    STATUS---------------- ------------orcl             MOUNTED SQL> alter database open resetlogs;alter database open resetlogs*ERROR at line 1:ORA-00392: log 3 of thread 1 is being cleared, operation not allowedORA-00312: online log 3 thread 1: '/oradata/orcl/redo03.log'  SQL>

发生这个问题的时候，REDO日志的状态可能如下所示：

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SQL> desc v$log; Name                                      Null?    Type ----------------------------------------- -------- ---------------------------- GROUP#                                             NUMBER THREAD#                                            NUMBER SEQUENCE#                                          NUMBER BYTES                                              NUMBER BLOCKSIZE                                          NUMBER MEMBERS                                            NUMBER ARCHIVED                                           VARCHAR2(3) STATUS                                             VARCHAR2(16) FIRST_CHANGE#                                      NUMBER FIRST_TIME                                         DATE NEXT_CHANGE#                                       NUMBER NEXT_TIME                                          DATE   SQL> SQL> select group#,bytes/1024/1024 "MB",status from v$log;       GROUP#         MB STATUS ---------- ---------- ----------------          1         50 CLEARING          3         50 CLEARING_CURRENT          2         50 CLEARING   SQL>                   SQL> desc v$logfile; Name                                      Null?    Type ----------------------------------------- -------- ---------------------------- GROUP#                                             NUMBER STATUS                                             VARCHAR2(7) TYPE                                               VARCHAR2(7) MEMBER                                             VARCHAR2(513) IS_RECOVERY_DEST_FILE                              VARCHAR2(3)   SQL> SQL> col member for a40 SQL> select group#,member from v$logfile;       GROUP# MEMBER ---------- ----------------------------------------          3 /oradata/orcl/redo03.log          2 /oradata/orcl/redo02.log          1 /oradata/orcl/redo01.log   SQL>

修复该问题：

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SQL> alter database clear logfile group 1;   Database altered.   SQL> alter database clear logfile group 2;   Database altered.   SQL> alter database clear logfile group 3;   Database altered.   SQL> select group#,bytes/1024/1024 "MB",status from v$log;       GROUP#         MB STATUS ---------- ---------- ----------------          1         50 UNUSED          3         50 CURRENT          2         50 UNUSED   SQL>       SQL> select instance_name,status from v$instance;   INSTANCE_NAME    STATUS ---------------- ------------ orcl             MOUNTED   SQL> alter database open resetlogs;     Database altered.   SQL> select instance_name,status from v$instance;   INSTANCE_NAME    STATUS ---------------- ------------ orcl             OPEN   SQL>

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Done。