APAR status
Closed as program error.
Error description
An IBM MQ SVRCONN channel fails with the following error when a CHLAUTH rule is defined with TYPE(BLOCKADDR) and WARN(YES). AMQ9509: Program cannot open queue manager object. EXPLANATION: The attempt to open either the queue or queue manager object 'XXX' on queue manager 'XXX' failed with reason code 2018. AMQ9214: Attempt to use an unsupported communications protocol. EXPLANATION:An attempt was made to use an unsupported communications protocol type 0 The above error is not reported with a generic ADDRESSMAP and BLOCKUSER.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users of the CHLAUTH facility who are using the BLOCKADDR CHLAUTH type with WARN set to YES may be affected by this problem. Platforms affected: MultiPlatform **************************************************************** PROBLEM DESCRIPTION: When attempting to write a channel blocked event to the SYSTEM.ADMIN.CHANNEL.EVENT queue, IBM MQ first checks whether these events are enabled by querying the queue manager object. It was possible for BLOCKADDR type authentication to occur before the appropriate internal state information had been obtained, which caused the MQOPEN of the queue manager object to fail with an MQRC_HCONN_ERROR.
Problem conclusion
The MQ queue manager code has been modified to detect the timing condition that lead MQRC_HCONN_ERROR, in order to avoid querying internal state information until after the MQOPEN of the queue manager object has completed successfully. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.5 7.5.0.8 v8.0 8.0.0.6 v9.0 CD 9.0.1 v9.0 LTS 9.0.0.1 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
IT14620
Reported component name
WMQ BASE MULTIP
Reported component ID
5724H7241
Reported release
750
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-04-13
Closed date
2016-07-28
Last modified date
2017-06-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI66546
Fix information
Fixed component name
WMQ BASE MULTIP
Fixed component ID
5724H7241
Applicable component levels
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSDEZSF","label":"IBM WebSphere MQ Managed File Transfer for z\/OS"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.5","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
31 March 2023