A fix is available
APAR status
Closed as program error.
Error description
This apar documents the provision of a service parm to avoid extra checking in V800 that causes FFSTs to be generated when a client sends invalid MQOPEN flows to a queue-manager. . Additional symptoms: +CSQX053E CSQ1 CSQXFFST Error information recorded in CSQSNAP data set +CSQX504E CSQ1 CSQXRESP Local protocol error, channel CSQ2.TO.CSQ1 type=0000000B data=00000000 +CSQX599E CSQ1 CSQXRESP Channel CSQ2.TO.CSQ1 ended abnormally connection . Eyecatchers in the CSQSNAP DD include: XFFSrriBadDataReceived XFFSrriConvertValidate TSH received . The Client problem is described by IV36766.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 * * Release 0 Modification 0. * **************************************************************** * PROBLEM DESCRIPTION: When a Java client at version V7.0.0.0 * * connects to a V8.0.0 z/OS queue manager * * an MQOPEN of a queue will fail with * * 'CSQX504E Local protocol error'. * **************************************************************** * RECOMMENDATION: * **************************************************************** The Java V7.0.0.0 code does not send a valid flow for the MQOPEN API call. This invalid data is tolerated by V7.0.1 (and V7.1.0 with toleration PTF enabled) queue managers, but at V8.0.0, additional tests will detect the invalid flow and terminate the channel connection, reporting a CSQX504E error. In addition an FFST is captured on the z/OS server side indicating "rriBadDataReceived". This issue is addressed in the Java Client Fix Pack 1 (V7.0.0.1 and above), but it may be impractical for a customer to deploy the client-side fix throughout their enterprise.
Problem conclusion
Following the application of the PTF for this APAR, customers may elect to enable less stringent checking of MQOPEN flows from clients to prevent the failure from occurring on the server. This checking will only be disabled when activated using the appropriate CHISERVP service parameter under the direction of the WebSphere MQ Service team. Without this activation, the server behavior will remain unchanged. Please contact WebSphere MQ Service if you wish to activate this capability. 000Y CMQXRMCV
Temporary fix
Comments
APAR Information
APAR number
PI44085
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
2015-06-30
Closed date
2015-10-21
Last modified date
2016-01-04
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI32246
Modules/Macros
CMQXRMCV
Fix information
Fixed component name
WMQ Z/OS 8
Fixed component ID
5655W9700
Applicable component levels
R000 PSY UI32246
UP15/12/15 P F512
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:
04 January 2016