APAR status
Closed as program error.
Error description
Two IBM MQ Appliances running 9.0.5 firmware were connected in a High Availability (HA) configuration. One of the Appliances reported that HA ethernet interfaces had dropped, after which it entered a partitioned state: . ADDRCONF(NETDEV_UP): eth17: link is not ready ADDRCONF(NETDEV_UP): eth13: link is not ready drbd: PingAck did not arrive in time. drbd peer( Primary -> Unknown ) conn ( Connected -> NetworkFailure ) pdsk ( UptoDate -> DUnknown) block drbd: Split-Brain detected but unresolved, dropping connection! . . When the other IBM MQ Appliance in the HA pair is checked, the 'show time' command indicates it reloaded itself: . mqa# show time . Local time: Tue Jun 12 02:56:45 2018 Time zone: EDT Time zone spec: EST5EDT,M3.2.0/2:00,M11.1.0/2:00 Uptime: reload: 0 days 03:22:58 Uptime: reboot: 24 days 18:53:11
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users using the IBM MQ Appliance Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: An internal MQ reload caused the IBM MQ Appliances using HA to go into partitioned state.
Problem conclusion
The IBM MQ Appliance code has been modified to avoid the internal reload. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v9.1 CD 9.1.1 v9.1 LTS 9.1.0.1 The latest available maintenance can be obtained from 'WebSphere MQ Recommended Fixes' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037 If the maintenance level is not yet available information on its planned availability can be found in 'WebSphere MQ Planned Maintenance Release Dates' http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309 ---------------------------------------------------------------
Temporary fix
Comments
APAR Information
APAR number
IT25353
Reported component name
IBM MQ APPL M20
Reported component ID
5725Z0900
Reported release
905
Status
CLOSED PER
PE
NoPE
HIPER
YesHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2018-06-13
Closed date
2018-08-28
Last modified date
2018-08-28
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
IBM MQ APPL M20
Fixed component ID
5725Z0900
Applicable component levels
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS5K6E","label":"IBM MQ Appliance"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"905","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]
Document Information
Modified date:
28 August 2018