A fix is available
APAR status
Closed as program error.
Error description
JVMSERVER statistics don't show GC collections with Java 8 SR 5.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All CICS users. * **************************************************************** * PROBLEM DESCRIPTION: Garbage Collection statistics return * * zero with Java 8 SR 5. * **************************************************************** Java 8 Service Refresh 5 is a significant enhancement to the Java Virtual Machine. The JVM's internal Garbage Collection algorithm, and the associated storage heaps, have changed such that CICS is unable to accurately report statistics for the heap size and occupancy. Lower than expected heap sizes may be reported, together with zero GC activity.
Problem conclusion
CICS has been changed to report the full heap and GC statistics for Java 8 SR 5 and above. CICS has also been changed to disable the new heap structure by specifying -XX:+HeapManagementMXBeanCompatibility. This can be overridden in the JVM profile using -XX:-HeapManagementMXBeanCompatibility.
Temporary fix
Comments
APAR Information
APAR number
PI87181
Reported component name
CICS TS Z/OS V5
Reported component ID
5655Y0400
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2017-09-12
Closed date
2018-02-14
Last modified date
2018-03-01
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
UI53865 UI53866 UI53867 UI53868 UI53869 UI53870 UI53871 UI53872
Modules/Macros
DFHSJSC DFJ@H356 DFJ@H467 DFJ@H468
Fix information
Fixed component name
CICS TS Z/OS V5
Fixed component ID
5655Y0400
Applicable component levels
R003 PSY UI53872
UP18/02/15 P F802
R00D PSY UI53871
UP18/02/15 P F802
R103 PSY UI53870
UP18/02/15 P F802
R10D PSY UI53869
UP18/02/15 P F802
R803 PSY UI53866
UP18/02/21 P F802
R80D PSY UI53865
UP18/02/20 P F802
R903 PSY UI53868
UP18/02/24 P F802
R90D PSY UI53867
UP18/02/24 P F802
Fix is available
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Document Information
Modified date:
01 March 2018