ORACLE 12C ORA-00312 redo故障处理
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一、描述
DB版本:12.1.0.2
system版本:7.0
二、处理过程
1、报错,数据库启动就实例就会异常终止
ORA-00312: online log 3 thread 1: ‘+DATADG/ORCLDG/ONLINELOG/group_3.403.962961193‘
ORA-00312: online log 3 thread 1: ‘+DATADG/ORCLDG/ONLINELOG/group_3.405.962961193‘
Mon Jan 08 13:35:53 2018
USER (ospid: 15155): terminating the instance due to error 16014
Mon Jan 08 13:35:53 2018
System state dump requested by (instance=1, osid=15155), summary=[abnormal instance termination].
System State dumped to trace file /u01/app/oracle/diag/rdbms/orcldg/orcldg/trace/orcldg_diag_15110_20180108133553.trc
Mon Jan 08 13:35:53 2018
Dumping diagnostic data in directory=[cdmp_20180108133553], requested by (instance=1, osid=15155), summary=[abnormal instance termination].
Mon Jan 08 13:35:53 2018
Instance terminated by USER, pid = 15155
Mon Jan 08 13:39:58 2018
Starting ORACLE instance (normal) (OS id: 16121)
Mon Jan 08 13:39:58 2018
CLI notifier numLatches:3 maxDescs:519
Mon Jan 08 13:39:58 2018
2、处理过程
SQL> startup mount;
ORACLE instance started.
Total System Global Area 1241513984 bytes
Fixed Size 2923872 bytes
Variable Size 452985504 bytes
Database Buffers 771751936 bytes
Redo Buffers 13852672 bytes
Database mounted.
SQL>
SQL> select group#,sequence#,archived,status from v$log;
GROUP# SEQUENCE# ARC STATUS
---------- ---------- --- ----------------
1 356 NO INACTIVE
3 355 NO INACTIVE
2 357 NO CURRENT
SQL> alter database clear logfile group 3 ;
alter database clear logfile group 3
*
ERROR at line 1:
ORA-00350: log 3 of instance orcldg (thread 1) needs to be archived
ORA-00312: online log 3 thread 1:
‘+DATADG/ORCLDG/ONLINELOG/group_3.403.962961193‘
ORA-00312: online log 3 thread 1:
‘+DATADG/ORCLDG/ONLINELOG/group_3.405.962961193‘
SQL>
SQL> alter database clear unarchived logfile group 3 ;
Database altered.
SQL> alter database open;
Database altered.
3、说明
我这里是一个ADG,主库这样操作会导致GAP,备库需要增量恢复。
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备库报 ORA-00313ORA-00312ORA-27037