| HPACAdmissionControl | On or Off | On | Turns admission control on or off. |
| HPACAdmitLoadThreshold | x > 0.0
(real number) | 2.0 | Sets the load threshold beyond which no new session
is admitted. |
| HPACAdmitPriorityThreshold | 0 <= x <= 1.0 (real number) | 0.9 | Sets the upper limit for the percentage of
priority requests that can be admitted. (for example, 0.9 means
that 90% of all requests admitted can be priority requests.) Beyond
this limit, even priority requests will be rejected. |
| HPACCookieDomain | the string following the hostname in a fully
qualified domain name (see description) | the domain extracted from the fully qualified
domain name of the web server running the admission controller | Sets the domain over which cookies will be
shared.
For example, the domain for host www.software.hp.com is .software.hp.com |
| HPACCookiePassword | string | N/A | Sets the password used to create the MD5 digest
for the cookie. |
| HPACDeferralEnterMsg | string | You will automatically enter the site in | Sets the heading for the time counter on the
deferral page. |
| HPACDeferralMessage | string | We are sorry, our server is busy. 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. | Sets the descriptive message displayed on the
deferral page.
If the message takes several lines, the
newline character should be escaped on all but the last line. (For
example:
We are sorry, our server is\ busy. In
order to ensure ... ) |
| HPACDeferralTitle | string | Server Busy | Sets the title of the deferral page. |
| HPACDeferredAdmitRate | n >= 1
(integer) | 10 | Sets the rate (per minute) at which deferred
sessions will be admitted to the server. |
| HPACIdleSessionTimeout | n >= 0
(integer) | 300 | Sets the time interval (in seconds) that can
elapse between successive requests of a session before the session
is considered idle (that is, next request from the same user agent
will be the start of a new session.). |
| HPACIsolateDamping | 0 < x <=1.0 (real number) | .001 | Sets the damping factor used to compute the
share of resources used by each virtual server. Larger values make
the controller more responsive to recent activity. |
| HPACLoadDamping | 0 <= x <= 1.0
(real
number) | 0.1 | Sets the damping factor used to compute the
web server load. Note: larger values make the controller more responsive
to recent activity. |
| HPACLogUpdateInterval | n > 0
(integer) | 600 | Sets the time interval (in seconds) between
statistics log updates. Note: the granularity of the time interval
is 5 seconds (that is, if the interval is set to one second, the
update will take place after five seconds; if set to six seconds,
the update will take place after 10 seconds, etc.). |
| HPACMimeCache | a list of one or more space- separated mime
type strings | audio/basic audio/midi audio/x-wav audio/x-liveaudio
audio/x-pn-realaudio image/fif
image/gif
image/ief
image/ifs
image/jpeg
image/tiff image/wavelet image/vnd
image/x-photo-cd video/quicktime video/x-mpeg2 video/x-msvideo | Sets the mime types the server can cache (all
other mime types are not cached). Note: If the list takes several lines,
the newline character should be escaped on all but the last line. |
| HPACMimeCaching | on/off | off | Turns mime caching on or off. |
| HPACMimeNocache | a list of one or more space-
separated mime
type strings | all, except those listed in the default list
for HPACMimeCache | Removes mime types from the list of mime types
the server can cache.
Note: If the list takes several lines,
the newline character should be escaped on all but the last line. |
| HPACRedirectURL | [http://]host
[:port] | N/A | Sets the URL of an alternate site where rejected
requests can be redirected. Note: the alternate site should be a mirror
of the site that redirected the request, otherwise redirection will
not work. |
| HPACRejectPagePath | file path | N/A | Sets the path of the file containing the document
to be displayed when a request is rejected and the rejection policy
is rejectpage. The path can be absolute or
relative to the web server root. |
| HPACRejectedExclusionTime | n > 0
(integer) | 300 | Sets the time interval (in seconds) to elapse
before a rejected session can be considered again for admission. |
| HPACRejectionPolicy | defer| reject| rejectpage | reject | Sets the rejection policy. If the policy is reject (default), users
whose requests are rejected will see the message returned by the
server for the HTTP_SERVICE_
UNAVAILABLE code.If the policy
is rejectpage, the document in the file set by
HPACRejectPath is returned.
If the policy is defer,
a deferral page showing the time the user has to wait before gaining
access is displayed. |
| HPACSessionDuration | n >= 0
(integer) | 0 | Sets the maximum duration (in seconds) of a
session. When set to 0 (default), the session never expires. |
| HPACShareUnits | n > 0
(integer) | 1 | Sets the number of units of server resources
a virtual host is entitled to use. (A unit is calculated as 1.0/total_share_units).
This number is used to compute the percentage of the web server's
total resources a virtual host is allowed to use. For instance,
if the share units assigned to three virtual hosts A, B and C are
1, 2 and 3, then A can use up to 17% of the server's resources (1/6 *
1), B can use up to 33% of the server's resources (1/6 * 2) and
C can use up to 50% (1/6 * 3) of the server's resources. |
| HPACStatsLogfile | file path | apache_home
/var/log/hpac.log | apache_home
/logs/hpac.log (depending on the apache_home layout) | Sets the path of the file to which the admission
control statistics are logged. The path can be absolute, or relative
to the web server root. |
| HPACStatsLogging | on/off | off | Turns statistics logging on or off. |
| HPACVHostIsolation | on/off | off | Turns on or off virtual host isolation. When
virtual host isolation is on, new sessions belonging to under-represented
virtual hosts are admitted at priority level. |
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