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Oracle DataGuard Standby database ID mismatch错误

原创 Linux操作系统 作者:Dodd 时间:2008-01-30 10:15:53 0 删除 编辑

故障现象:

Oracle 9208 DataGuard日志应用正常,但是在standby alter log文件里老是提示下面错误:

RFS: Possible network disconnect with primary database
standby database ID mismatch [0x99bb1983:0x8d17262b]

Metalink的文档:

 

Symptoms

Standby alert log reports "RFS: Possible network disconnect with primary database"

At the standby DB side I get this error every minute.
RFS: Possible network disconnect with primary database
Standby database ID mismatch [0xAAAA:0xBBBBB]

Archive log transfer/apply works O.K.

Cause

The (error) message may be triggered by another database that  has log_archive_dest_2 pointing to standby instance of (error) message .

RFS process tries to communicate with the instance.

Solution

Check if you have DB with mismatched ID and its  log_archive_dest_X parameter value.
If found one but not in primary/standby config, disable log_archive_dest_2 to the instance, ie

From the error message of "Standby database ID mismatch [0xAAAA:0xBBBBB]"

Convert the hex number of first argument, 0xAAAA to decimal value using calculator

Then search db with the dbid.
SQL> select dbid from v$database;
 
SQL> alter system set log_archive_dest_2_state=defer;


 

 

按照上述说明,果然在primary database所在主机上,找到了另外一个实例,其参数log_archive_dest_2的设置也是:

 

log_archive_dest_2                   string      SERVICE=standby

 

log_archive_dest_2参数defer后,即可解决问题。

 

关于log_archive_dest_n参数的设置说明:

说明: 指定相应的归档日志目标参数 ( LOG_ARCHIVE_DEST_3) 的可用性状态。如果启用,

 

日志目标将被归档。如果延迟, 该目标将被排除在归档操作之外直至重新启用。

 

值范围: ENABLE | DEFER

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