APAR status
Closed as program error.
Error description
Health Center version 3.0 creates threads that are not zaap enabled, causing greater general processor usage. The cpu usage can be seen when running with -Xhealthcenter enabled when running with any Version 3.0 instance of health center. The version of the health center agent is displayed within the INFO message at jvm startup when -Xhealthcenter is used. For example: INFO: Agent version "3.0.4.20150622"
Local fix
remove -Xhealthcenter to eliminate the general CPU usage attributable to the health center agent threads.
Problem summary
The problem was that Health Center threads changed from being zAAP-eligible in v2 to zAAP-ineligible in v3.
Problem conclusion
The Health Center and JVM are updated to enable Health Center threads to be eligible for dispatch on z/OS special processors (zIIP and zAAP) z/OS APAR OA49088 MUST ALSO be installed in conjunction with this fix to enable the offload capability. . This APAR will be fixed in the following Java Releases: 6 R1 SR8 FP20 (6.1.8.20) 7 SR9 FP30 (7.0.9.30) 7 R1 SR3 FP30 (7.1.3.30) 8 SR2 FP10 (8.0.2.10) . Contact your IBM Product's Service Team for these Service Refreshes and Fix Packs. For those running stand-alone, information about the available Service Refreshes and Fix Packs can be found at: https://www.ibm.com/developerworks/java/jdk/
Temporary fix
Comments
APAR Information
APAR number
IV76898
Reported component name
J9 COMMON CODE
Reported component ID
620700127
Reported release
270
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2015-09-10
Closed date
2015-12-18
Last modified date
2015-12-18
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PI54075
Fix information
Fixed component name
J9 COMMON CODE
Fixed component ID
620700127
Applicable component levels
R260 PSY
UP
R270 PSY
UP
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Document Information
Modified date:
21 February 2022