Taking RMAN Backup Caused This Message In The Standby Database "POSSIBLE NETWORK DISCONNECT WITH PRIMARY DATABASE" (Doc ID 878557.1)

Last updated on AUGUST 26, 2015

Applies to:

Oracle Database - Enterprise Edition - Version 10.2.0.3 to 11.1.0.7 [Release 10.2 to 11.1]
Information in this document applies to any platform.
***Checked for relevance on 27-Sep-2012***


Symptoms

During RMAN Archivelog Backup on primary, the LNS process on primary is restarted and standby detects possible network disconnect with primary.

Alert Log from Primary Database:
--------------------------------

Tue Jul 14 10:38:24 2009
Starting control autobackup
Control autobackup written to DISK device
handle '/oracle/oradata01/wmbv/fra/WMBV/autobackup/2009_07_14/o1_mf_s_692188704_55rk00tx_.bkp'
Tue Jul 14 10:38:44 2009
Thread 1 cannot allocate new log, sequence 18252
Private strand flush not complete
Current log# 3 seq# 18251 mem# 0: /oracle/oradata/wmbv/redo/redo30.log
Current log# 3 seq# 18251 mem# 1: /oracle/oradata/wmbv/redo/redo31.log
LNS1 started with pid=129, OS id=32146
Tue Jul 14 10:38:47 2009
Thread 1 advanced to log sequence 18252
Current log# 4 seq# 18252 mem# 0: /oracle/oradata/wmbv/redo/redo40.log
Current log# 4 seq# 18252 mem# 1: /oracle/oradata/wmbv/redo/redo41.log
Tue Jul 14 10:38:48 2009
LNS: Standby redo logfile selected for thread 1 sequence 18252 for destination LOG_ARCHIVE_DEST_2
Tue Jul 14 10:38:48 2009
ARC1: Standby redo logfile selected for thread 1 sequence 18251 for destination LOG_ARCHIVE_DEST_2
Tue Jul 14 10:38:52 2009
Starting control autobackup
Control autobackup written to DISK device
handle '/oracle/oradata01/wmbv/fra/WMBV/autobackup/2009_07_14/o1_mf_s_692188732_55rk0wkd_.bkp' Tue Jul 14 10:39:10 2009
alter database backup controlfile to trace
Tue Jul 14 10:39:10 2009
Completed: alter database backup controlfile to trace
Tue Jul 14 10:39:13 2009
Thread 1 cannot allocate new log, sequence 18253
Private strand flush not complete
Current log# 4 seq# 18252 mem# 0: /oracle/oradata/wmbv/redo/redo40.log
Current log# 4 seq# 18252 mem# 1: /oracle/oradata/wmbv/redo/redo41.log
LNS1 started with pid=129, OS id=328




Alert Log From The Standby Database:
-------------------------------------

Tue Jul 14 10:38:42 2009
RFS[2380]: Possible network disconnect with primary database

Cause

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