PING[ARC2]: Heartbeat failed to connect to standby 'gqtzdb_dg'. Error is 16047
2024-08-31 23:52:38
Data Guard搭建完毕之后,执行开启归档路径2,结果发现不同步,
SQL> alter system set log_archive_dest_state_2=enable;
查看错误日志,发现有PING[ARC2]: Heartbeat failed to connect to standby 'gqtzdb_dg'. Error is 16047.的报错:
[oracle@KG-ORA-01 trace]$ tail -100f alert_gqtzdb.log
Mon Jul 03 18:19:10 2017
Using STANDBY_ARCHIVE_DEST parameter default value as /oradata/gqtzdb/archivelog
ALTER SYSTEM SET log_archive_dest_state_2='ENABLE' SCOPE=BOTH;
Mon Jul 03 18:19:10 2017
PING[ARC2]: Heartbeat failed to connect to standby 'gqtzdb_dg'. Error is 16047.
接着查看v$archive_dest视图,查看是否能找到原因,结果发现如下报错:
SQL> select dest_id,error from v$archive_dest; DEST_ID ERROR
---------- -----------------------------------------------------------------
1
2 ORA-16047: DGID mismatch between destination setting and target
database
很明显,DGID不一样,去备库查看参数db_unique_name参数:
SQL> show parameter db_unique_name NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
db_unique_name string gqtzdb
发现db_unique_name参数没有修改,仍然是主库的值,速度改过来,并重启备库:
SQL> alter system set db_unique_name='gqtzdb_dg' scope=both;
alter system set db_unique_name='gqtzdb_dg' scope=both
*
ERROR at line 1:
ORA-02095: specified initialization parameter cannot be modified SQL> alter system set db_unique_name='gqtzdb_dg' scope=spfile; System altered.
然后再在主库开启归档路径2,在备库运行命令,查看同步状态:
SQL> alter database recover managed standby database using current logfile disconnect from session; Database altered. SQL> select process,client_process,sequence#,status from v$managed_standby; PROCESS CLIENT_P SEQUENCE# STATUS
--------- -------- ---------- ------------
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
ARCH ARCH 0 CONNECTED
RFS UNKNOWN 0 IDLE
RFS LGWR 24 IDLE
RFS UNKNOWN 0 IDLE
RFS UNKNOWN 0 IDLE
MRP0 N/A 11 APPLYING_LOG 9 rows selected.
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