A fix is available
APAR status
Closed as program error.
Error description
MQ task using 3270 Bridge hangs in DFHPTTW DFHPTTW suspend, and eventually gets purged (AEXY). A dump taken while the MQ task is hung shows that its partner task was a CKBP task. However, CICS trace shows that the CKBP task ended normally leaving its partner suspended. The hung MQ task appears to be expecting more data. . This problem occurs after application of APAR PI36660 (PTF UI31400 ).
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of CICS 5.1 with UI31447 applied, * * all users of CICS 5.2 with UI31448 applied, * * and all users of CICS 5.3 and 5.4. * **************************************************************** * PROBLEM DESCRIPTION: WebSphere MQ 3270 Bridge task hangs in * * DFHPTTW wait. * **************************************************************** The CICS-MQ bridge transaction (CKBR) attaches the Bridge ProgramLink transaction (CKBP) which starts a user transaction. The user transaction is conversational so suspends in a DFHPTTW wait for the next message. CKBP retrieves the next message but rather than resuming the suspended task, attempts to start a new transaction. This fails with exception TXN_RUNNING causing CKBP to terminate. The user transaction remains suspended.
Problem conclusion
UI31447 UI31448 DFHMQBP0 has been modified so that CKBP correctly resumes the suspended task.
Temporary fix
Comments
APAR Information
APAR number
PI81305
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
800
Status
CLOSED PER
PE
YesPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-05-09
Closed date
2017-08-29
Last modified date
2017-09-02
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI49894 UI49895 UI49896 UI49897
Modules/Macros
DFHMQP0@
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R003 PSY UI49896
UP17/08/31 P F708 {
R103 PSY UI49897
UP17/08/31 P F708 {
R803 PSY UI49894
UP17/08/31 P F708 {
R903 PSY UI49895
UP17/08/31 P F708 {
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.
[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.1","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.1","Edition":"","Line of Business":{"code":"","label":""}}]
Document Information
Modified date:
02 September 2017