Fixes are available
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21
APAR status
Closed as new function.
Error description
ADD SUPPORT FOR ZEDC COMPRESSION OFFLOAD FOR IBM HTTP SERVER
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: Users of IBM HTTP Server 8.5 on z/OS using * * mod_deflate * **************************************************************** * PROBLEM DESCRIPTION: Support for zEDC acceleration * * for mod_deflate needed * **************************************************************** * RECOMMENDATION: Apply this fix and switch to * * mod_deflate_z.so if using mod_deflate on * * z/OS V2R1 with zEDC support and lookin to * * conserve CPU. * **************************************************************** z/OS V2R1 added hardware acceleration of the zlib compression library used by mod_deflate. To exploit it, applications must be rebuilt with a customized compression library.
Problem conclusion
An alternate "mod_deflate_z.so" was created which uses the z/OS customized version of the zlib compression library. In the next release, this version will replace mod_deflate.so. The fix for this issue is targetted for IBM HTTP Server fixpack 8.5.5.4.
Temporary fix
Comments
APAR Information
APAR number
PI24424
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
2014-08-22
Closed date
2014-09-08
Last modified date
2014-09-08
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
Document Information
Modified date:
27 April 2022