APAR status
Closed as program error.
Error description
Unexpected delays are observed when starting MQ channels using SSL/TLS. MQ trace captured during the problem likely to show very long delays in ccigsk_environment_init functions. 16:17:16.194912 1801.1 RSESS:000001 ------{ccigsk_environment_init 16:17:16.194921 1801.1 RSESS:000001 gsk_environment_init:input: gsk_env_handle=0x1001758d0 *16:17:26.028585 1801.4 : -}! xcsWaitThreadEventrc=xecL_W_TIMEOUT 16:17:26.028603 1801.4 : -{xcsRequestThreadMutexSem The cause of the delay was in the GSKit libraries used by MQ for cryptographic operations, however MQ did not support the setting of tuning parameters which the GSKit support team recommended to use as part of the diagnosis of this delay.
Local fix
Problem summary
**************************************************************** USERS AFFECTED: Users using MQ SSL channel in Fujitsu SPARC Servers. Platforms affected: Solaris x86-64, Solaris SPARC **************************************************************** PROBLEM DESCRIPTION: This problem occurred because of delays in GSKit cryptographic processing. The GSKit team recommended tuning parameters as part of their investigation, however MQ did not support the passing through of these parameters to the GSKit libraries.
Problem conclusion
MQ has been modified to pass the following environment variables and values through to the GSKit libraries if set: AMQ_SSL_FIPS_MODE_PROCESSING_OFF=1 AMQ_SSL_NOLOAD_C=1 These environment variables should be set only if recommended by IBM support. --------------------------------------------------------------- The fix is targeted for delivery in the following PTFs: Version Maintenance Level v7.5 7.5.0.8 v8.0 8.0.0.7 v9.0 CD 9.0.3 v9.0 LTS 9.0.0.2 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
IT17934
Reported component name
WEBSPHERE MQ 7.
Reported component ID
5724H7240
Reported release
750
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-11-22
Closed date
2017-03-21
Last modified date
2017-03-21
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
WEBSPHERE MQ 7.
Fixed component ID
5724H7240
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