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Friday, July 13, 2018

How to add new instance manually to the Cluster and Resolve the ORA-01618 error

Cause for the issue:

Instance 2 alert log shows failing due to

SUCCESS: diskgroup FBK was mounted
NOTE: dependency between database racdb and diskgroup resource ora.FBK.dg is established
ORA-1618 signalled during: ALTER DATABASE MOUNT

 Error information
Error: ORA-01618 (ORA-1618)
Text: redo thread %s is not enabled - cannot mount
Cause: The INIT.ORA parameter "thread" requests a thread that is not
enabled. A thread must be enabled before it can be mounted.
Action: Shutdown the instance, change the INIT.ORA parameter and startup
mounting a different thread. If the database is open in another
instance then the thread may be enabled.
 Ffor a RAC database each instance needs a separate set of redo log files (thread), here it is complaining about thread 2
 we see information for thread  2 exists as follows

Starting up:
Oracle Database 11g Enterprise Edition Release - 64bit Production
With the Partitioning, Real Application Clusters, OLAP, Data Mining
and Real Application Testing options.
ORACLE_HOME = /u01/app/oracle/product/11.2.0/dbhome_1
System name:    Linux
Node name:
Release:        2.6.32-358.14.1.el6.x86_64
Version:        #1 SMP Mon Jun 17 15:54:20 EDT 2013
Machine:        x86_64
Using parameter settings in server-side pfile /u01/app/oracle/product/11.2.0/dbhome_1/dbs/initracdb2.ora
System parameters with non-default values:
processes                = 150
sga_max_size             = 50G
thread                   = 2 >>>>>>>>>>>>>>>>>>>>>>>>> thread 2
undo_tablespace          = "UNDOTBS2"
instance_number          = 2

Solution :

SQL> alter database enable thread 2;

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