PI04922: IBM HTTP Server scaling/processing threads limited on 64-bit Microsoft Windows

Fixes are available

APAR status

Closed as program error.

Error description

64-bit Microsoft Windows Operating Systems require more space
for each 32-bit IBM HTTP Server thread than 32-bit Microsoft
Windows Operating Systems.  This can result in available
memory being exceeded for configurations using a very high
ThreadsPerChild value.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of IBM HTTP Server on a 64-bit        *
*                  Microsoft Windows server with high          *
*                  ThreadsPerChild values (approximately       *
*                  2000).                                      *
****************************************************************
* PROBLEM DESCRIPTION: Available processing threads are more   *
*                      limited on 64-bit Microsoft Windows     *
*                      servers due to higher memory use per    *
*                      thread.                                 *
****************************************************************
* RECOMMENDATION:  Apply this fix if you need to use high      *
*                  ThreadsPerChild values for IBM HTTP Server  *
*                  on a 64-bit Microsoft Windows server.       *
****************************************************************
The use of large numbers of IBM HTTP Server threads is more
limited on a 64-bit Microsoft Windows server.

Problem conclusion

IBM HTTP Server on 64-bit Microsoft Windows can now provide
more threads by use of an alternate httpd-la.exe executable
that is Large Address Aware.  In order to use this alternate
executable, you must either modify the existing Windows
service to use httpd-la.exe, or create a new Windows service
that uses httpd-la.exe for the runtime and use it instead of
the existing service.  A new Windows service for the executable
can be created by invoking it such as:
 httpd-la.exe -k install -n "IBM HTTP Server V8 LA".

This fix is targeted for IBM HTTP Server fix packs:
 - 8.0.0.9
 - 8.5.5.2

Temporary fix

Comments

APAR Information

APAR number
PI04922
Reported component name
IBM HTTP SERVER
Reported component ID
5724J0801
Reported release
800
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt / Xsystem
Submitted date
2013-10-28
Closed date
2014-01-08
Last modified date
2014-01-08

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
IBM HTTP SERVER
Fixed component ID
5724J0801

Applicable component levels

R800 PSY
UP
R850 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTJ","label":"IBM HTTP Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
07 September 2022

Tips

PI04922: IBM HTTP Server scaling/processing threads limited on 64-bit Microsoft Windows

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R800 PSY

R850 PSY

Document Information

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