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HP WebQoS Peak for HP-UX Concepts and Operation Guide > Appendix A HP WebQoS Configurable Parameters

HP WebQoS Configurable Parameters for Netscape

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You can modify the behavior of the HP WebQoS modules by setting the appropriate parameters in your Netscape configuration file: /opt/ns-server_name/server_id/config/hpac/config.ac.

Table A-1 HP WebQoS Configurable Parameters for Netscape

ParameterRange/TypeDefaultDescription
admit.alwaysN/AN/AConfigures HP WebQoS to always accept sessions.
admit.loadN/AN/ASets the "Admit Sessions" to use the load threshold.
admit.load.threshold0.0 <= x2.0Sets the load threshold for admitting a session.
admit.priority.damping0.0 <= x <= 1.00.001The damping factor used to compute the priority percentage. Larger values make the controller more responsive to recent activity.
admit.priority.threshold0.0 <= x <= 1.00.9The value of the priority fraction when priority requests are rejected
(0.9 = 90% priority percentage).
admit.shutdownN/AN/ASets the "Admit Sessions" to shutdown.
admit.shutdown.delay0 <= n
(integer)
600Sets how much time before HP WebQoS shuts down and rejects all (new and remaining) sessions.
cluster.disableN/AN/ADisables clustering. The system will not try to open the hpac-cluster port.
cluster.domainstring The domain used to limit the scope of the cluster over which the client-side cookies can be shared.
cluster.groupstringdefaultSets the cluster group.
cluster.keepalive.interval1 <= n
(integer)
60The number of seconds between status broadcasts.
cluster.keepalive.misses1 <= n
(integer)
3The number of missed status broadcasts before a server is identified as down.
cluster.TTL0 <= n
(integer)
0Sets the cluster TTL which is the number of redirections allowed before rejecting the session.
cookie.passwordstringN/ASets the password used in creating the MD5 digest.
deferral.enterMsgstringYou will automatically enter the site in
.
Part of the allocation page message served when a session is rejected.
deferral.messagestringWe are sorry our server is busy, and in order to ensure adequate levels of service to our current visitors, we cannot serve you at this time. We have allocated you a position in line and will serve you as soon as we can.Part of the allocation page message served when a session is rejected.
deferral.titlestringServer Busy
.
Part of the allocation page message served when a session is rejected.
endsession.duration0 <= n
(integer)
0Sets, in seconds, the maximum session duration
endsession.requestInterval0 <= n
(integer)
300Sets, in seconds, the maximum interval between requests
isolate.damping0.0 <= x <= 1.00.001The damping factor used to compute the share of resources being used by each virtual server. Larger values make the controller more responsive to recent activity.
isolate.patternstringN/AThe pattern used to identify virtual servers. If provide, HP WebQoS will isolate traffic to each virtual server.
load.damping0.0 <= x <= 1.00.1The damping factor used to compute the web server load. Larger values make the controller more responsive to recent activity.
log.filestringN/AThe full path name of the HP WebQoS log file. The statistics from the HP AdmissionControl Statistics web page are logged to this file.
log.interval1 <= n
(integer)
600How often, in seconds, the statistics are logged to the log.file.
mime.cacheN/ASee “Defaults Already Configured in config.ac”.The web server should cache the specified mime types.
mime.nocacheN/AN/AThe web server should cache all but the specified mime types.
mime.typestringN/ASpecifies the mime type used by the caching policy.
reject.errorN/AServer Temporarily UnavailableSets the response to a rejected session to the "Server Temporarily Unavailable" error message. This message is not configurable.
reject.excludeTime0 <= x300Sets how long, in seconds, the user is prevented from returning to the site.
reject.externalN/AServer Temporarily UnavailableSets the response to a rejected session to use an external function or application. Currently, it will only serve the "Server Temporarily Unavailable" error message.
reject.futureN/AN/ASets the response to a rejected session to a countdown web page.
reject.future.rate1 <= n
(integer)
10Set the number of sessions that can be admitted each minute.
reject.pageN/AN/ASets the response to a rejected session to a customizable web page.
reject.page.pathstringN/AThe full path and file name of the customizable web page.
shlib.initializestringN/AThe name of the function that initializes the library.
shlib.librarystringN/AThe file name of the shared library.
shlib.loadMetricstringN/AThe name of the function used as the load metric.
shlib.releasestringN/AThe name of the function that releases resources allocated by the library.
shlib.rejectstringN/AThe name of the function used when the reject policy is set to External.
shlib.sessionStatestringN/AThe name of the function that modifies the session state. This function may change the priority of sessions or end sessions.

 

Defaults Already Configured in config.ac

The following are defaults that have been configured in the /opt/ns-server_name/server_id/config/hpac/config.ac file:

# Warning, manual changes to this file will be
# overwritten by changes made
# via the Admission Control Policy screen.
mime.cache # a list of likely cache candidates follows
mime.type audio/basic
mime.type audio/midi
mime.type audio/x-wav
mime.type audio/x-liveaudio
mime.type audio/x-pn-realaudio
mime.type image/fif
mime.type image/gif
mime.type image/ief
mime.type image/ifs
mime.type image/jpeg
mime.type image/tiff
mime.type image/wavelet
mime.type image/vnd
mime.type image/x-photo-cd
mime.type video/mpeg
mime.type video/quicktime
mime.type video/x-mpeg2
mime.type video/x-msvideo
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