A fix is available
APAR status
Closed as program error.
Error description
After upgrade from MQ V7.1 to V8 the SYSTCPD DD Statement to resolve DNS in a different TCPIP stack is ignored. An LPAR with 2 TCPIP stacks is used. After migration of MQ the stack defined in SYSTCPD is no longer be used. A resolver trace shows that the default TCPIP stack /etc/resolve.conf is being used, instead the one defined in SYSTCPD.
Local fix
n/a
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 * * Release 0 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: The TCP/IP configuration defined in the * * Channel Initiator's SYSTCPD DD * * statement is ignored when * * /etc/resolv.conf is defined in HFS or * * zFS on the system. * **************************************************************** * RECOMMENDATION: * **************************************************************** The internal interface used by MQ for for TCP/IP nameserver lookups has changed. This new interface uses a different set of precedence rules to locate the TCP/IP configuration. When a /etc/resolv.conf configuration is found in HFS or zFS, this is used in preference to a Chinit specific SYSTCPD configuration. This is different from the order of precedence in version 7 of MQ and prevents customers from overriding the TCP/IP configuration at a per-Chinit level when a system-wide /etc/resolv.conf file exists.
Problem conclusion
Processing has been amended to ensure that a Chinit-specific SYSTCPD DD takes precedence over /etc/resolv.conf. If the configuration at /etc/resolv.conf should be used, then the Chinit SYSTCPD DD should be removed. 000Y CSQXTENT
Temporary fix
Comments
APAR Information
APAR number
PI67140
Reported component name
WMQ Z/OS 8
Reported component ID
5655W9700
Reported release
000
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2016-08-09
Closed date
2016-09-22
Last modified date
2016-11-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI69442 UI40986
Modules/Macros
CSQXTENT
Fix information
Fixed component name
WMQ Z/OS 8
Fixed component ID
5655W9700
Applicable component levels
R000 PSY UI40986
UP16/10/06 P F610
Fix is available
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Document Information
Modified date:
02 November 2016