A fix is available
APAR status
Closed as program error.
Error description
When using the ability to set the size of an MQ channel's TCP/IP send/recv buffers via the PTF associated with PM71966, if the system has been configured to use a larger default buffer size than the one requested by MQ, the effective buffer size may be reduced.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 7 * * Release 1 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: Users attempting to increase the size * * of their TCP/IP send and receive * * buffers may find that a smaller buffer * * size than is specified in the * * system-wide default values for TCP/IP * * send and receive buffers is used. * **************************************************************** * RECOMMENDATION: * **************************************************************** Following the application of PTF UK91755 for APAR PM71966, customers are able to enable function that increases the size of the TCP/IP send and receive buffers for MQ channels. However, if the system-wide default size for the send or receive buffers is set higher than the initial value established by MQ, the effective buffer sizes will be reduced.
Problem conclusion
Processing has been amended to ensure that MQ checks the current size of the send or receive buffers and will not reduce the buffer sizes below those defined by the TCP/IP system administrator. 100Y CSQXADPO CSQXADP2 CSQXCCIT CSQXCCXD CSQXCCXT CSQXCLIT
Temporary fix
Comments
APAR Information
APAR number
PI24980
Reported component name
WMQ Z/OS V7
Reported component ID
5655R3600
Reported release
010
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2014-09-03
Closed date
2014-09-23
Last modified date
2014-12-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI25741 UI21591
Modules/Macros
CSQXADPO CSQXADP2 CSQXCCIT CSQXCCXD CSQXCCXT CSQXCLIT
Fix information
Fixed component name
WMQ Z/OS V7
Fixed component ID
5655R3600
Applicable component levels
R100 PSY UI21591
UP14/10/17 P F410
Fix is available
Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.
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Document Information
Modified date:
18 December 2014