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Errors In RDB Monitor Log File Around Time Of AIJ Backup (Doc ID 2912784.1)

Last updated on APRIL 17, 2023

Applies to:

Oracle Rdb Server on OpenVMS - Version 7.4 and later
Information in this document applies to any platform.


The monitor log file contains entries similar to the following:

 3-NOV-2022 01:00:32.32 - Received AIJ Backup Server start request from 219B1C49:7
  - process name AEIAW, user NJABEEN
  - database name "DSA80:[DATABASE.TRANS]TRANS_DB.RDB;1" [_DSA80] (27270,7,0)
  - AIJ backup already requested for AIJ sequence 76
  - sending normal AIJ Backup Server start reply to 219B1C49:7
  - error sending reply to requestor:
  - %COSI-F-CANTASSMBX, error assigning a channel to a mailbox
  - %SYSTEM-W-NOSUCHDEV, no such device available

4 seconds before this, at 2022-11-03 01:00:26.31, a MANUAL AIJ backup was started with the following command:

%RMU-I-AIJBCKBEG, beginning after-image journal backup operation
%RMU-I-OPERNOTIFY, system operator notification: AIJ backup operation started
%RMU-I-AIJBCKSEQ, backing up after-image journal sequence number 76
%RMU-I-LOGBCKAIJ, backing up after-image journal AIJ_5 at 01:00:26.82
%RMU-I-LOGCREBCK, created backup file $1$DGA3860:[DBA_BACKUPS]TRANS_22B031_76.AIJ;1
%RMU-I-OPERNOTIFY, system operator notification: AIJ backup operation completed
%RMU-I-AIJBCKEND, after-image journal backup operation completed successfully
%RMU-I-LOGAIJJRN, backed up 1 after-image journal at 01:01:40.66
%RMU-I-LOGAIJBLK, backed up 132353 after-image journal blocks at 01:01:40.66

It appears that while a MANUAL AIJ backup is performed, Rdb is (erroneously?) attempting to start an AIJ Backup Server process to perform an AIJ backup. Periodically, user processes attached to the database receive the following exceptions:
  - %COSI-F-CANTASSMBX, error assigning a channel to a mailbox
  - %SYSTEM-W-NOSUCHDEV, no such device available

While the manual AIJ backup appears to be successful, the error messages in the log file suggest that Rdb believes there errors.

What is the cause of these messages, and how can they be avoided?


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