PQ60472: PROVIDE SOME GUIDANCE ON LDAP CONNECTION/THREAD SETTINGS

APAR status
Closed as documentation error.

Error description
There are two settings in the slap.conf file,
maxConnections and maxThreads.  These are set to 10 by the
customization dialogs.  The value of 10 was too small for
a certain customer which caused ldap connection failures.
He increased it to get around the problem, but would like some
guidance in the Installation and Customization Guide on what
he should use.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server    *
*                 V4.0.1 for z/OS and OS/390                   *
****************************************************************
* PROBLEM DESCRIPTION: The WebSphere for z/OS: Installation    *
*                      and Customization publication should be *
*                      updated to provide some guidance on     *
*                      LDAP maxConnections/maxThreads.         *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The WebSphere for z/OS: Installation and Customization
publication doesn't have a guideline for maxConnections and
maxThreads.

The WebSphere for z/OS: Installation and Customization
publication should be updated to include a guideline on
maxConnections and maxThreads.
Problem conclusion
The following publications were revised as a result
of APAR PQ60472:
________________________________________________________________

NOTE: Periodically, we refresh the documentation on our
Web site, so the changes might have been made before you
read this text. To access the latest on-line
documentation, go to the product library page at:


http://www.ibm.com/software/webservers/appserv/
________________________________________________________________
________________________________________________________________

Document Name: WebSphere Application Server V4.0.1 for
               z/OS and OS/390: Installation and
               Customization
Document Number: GA22-7834-05
________________________________________________________________
Information on page 51 has been changed to read:

There are two settings in the slap.conf file: maxConnections and
maxThreads. Both are set to a default of 10 by the customization
dialogs. However, this value may be too small for your system--a
situation that can cause LDAP connection failures. You can
determine the correct value to use based on the release and/or
APAR level you are running for the LDAP server on your system.
Beginning with z/OS V1R2 (or after applying APAR 
OW50971 to
OS/390 V2R10 or z/OS V1R1), you should use the configuration
parameter "commThreads" and specify to run with approximately
two times the number of CPUs dedicated to the LPAR in which the
LDAP server is running. "maxConnections" can be set
independently and represents the maximum number of concurrently
connected clients that you want the server to allow. It now has
a minimum of 30 and a maximum that depends on MAXFILEPROC from
BPXPRMxx. See Security Server LDAP Server Administration and Use
for more information on how to configure LDAP.
Temporary fix Comments
APAR information
APAR number PQ60472
Reported component name WASKBASE
Reported component ID 5655A9801
Reported release 401
Status CLOSED DOC
PE NoPE
HIPER NoHIPER
Submitted date 2002-04-24
Closed date 2002-09-24
Last modified date 2002-09-24

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros

Fix information

Applicable component levels


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ60472
IBM Group: Software Group
Modified date: Sep 24, 2002