A fix is available
APAR status
Closed as program error.
Error description
apr_pollset_add failure - errno2=0x11780494 Additional symptom is excessive and growing CPU usage on the listener thread.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All z/OS IBM HTTP Server V8.5 users * **************************************************************** * PROBLEM DESCRIPTION: CPU usage for one thread in each IHS * * child process grows steadily. * **************************************************************** * RECOMMENDATION: * **************************************************************** CPU usage for one thread in each IBM HTTP Server child process grows steadily. In extreme cases, the server might stop functioning with messages like this in the error log: [Wed Jan 02 19:04:49 2013] [error] (112)EDC5112I Resource temporarily unavailable. (errno2=0x11780494): process_socket: apr_pollset_add failure
Problem conclusion
IBM HTTP Server is changed to correctly cancel outstanding async I/O operations after KeepAliveTimeouts expire. In addition, IHS will only call the cancel service when there actually is an active async I/O operation.
Temporary fix
Comments
APAR Information
APAR number
PM80260
Reported component name
WAS IHS ZOS
Reported component ID
5655I3510
Reported release
850
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-01-09
Closed date
2013-01-10
Last modified date
2013-01-10
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WAS IHS ZOS
Fixed component ID
5655I3510
Applicable component levels
R850 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.5","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
29 October 2021