APAR status
Closed as program error.
Error description
When the connection between a primary and secondary is established, a certain set of onconfig parameters are checked for matching values on either side. Should a mismatch be detected, the secondary will shutdown with a message similar to: DR: Configuration parameter values of the paired servers do not match: Parameter: LOGBUFF Current server's value: 1024 Paired server's value: 512 The parameter values must match. DR:Shutting down the server. DR:Terminating the master daemon to bring system down immediately. The problem is that, after correcting the parameter mismatch, the secondary server will fail to start due to issues with creation of the shared memory. The online log will show messages of the form: IBM Informix Dynamic Server Started. Requested shared memory segment size rounded from 2812KB to 3280KB shmget: [EEXIST][17]: key 52a84801: shared memory already exists mt_shm_init: can't create resident segment Running the onstat command will show: *** WARNING: IBM Informix Dynamic Server is no longer running. *** *** WARNING: IBM Informix Dynamic Server is no longer running. *** This problem is the result of the previous server shutdown not removing all of the shared memory segments.
Local fix
Running the command "onmode -ky" or "onclean -ky" should remove the shared memory segments and allow for the server to be restarted.
Problem summary
**************************************************************** * USERS AFFECTED: * * Users of Informix Server prior to 12.10.xC14 and 14.10.xC4. * **************************************************************** * PROBLEM DESCRIPTION: * * See Error Description * **************************************************************** * RECOMMENDATION: * * Update to Informix Server 12.10.xC14 or 14.10.xC4 (when * * available). * ****************************************************************
Problem conclusion
Fixed in Informix Server 12.10.xC14 and 14.10.xC4.
Temporary fix
Comments
APAR Information
APAR number
IT31495
Reported component name
INFORMIX SERVER
Reported component ID
5725A3900
Reported release
C10
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2020-01-13
Closed date
2020-03-03
Last modified date
2020-03-03
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
INFORMIX SERVER
Fixed component ID
5725A3900
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSGU8G","label":"Informix Servers"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C10","Edition":"","Line of Business":{"code":"LOB10","label":"Data and AI"}}]
Document Information
Modified date:
03 March 2020