Return-Path:
key=value
parameters, described in the table
>> below.
Setting min
will determine how many connections to
>> - the backend server will be retained after use. Up to the
>> - Soft Maximum, or smax
, number of connections will be
>> - created on demand. Any connections above smax
are
>> - subject to a time to live, or ttl
. Apache httpd will
>> - never create more than the Hard Maximum or, max
,
>> - connections to the backend server.
Setting min
to non-zero allows connections to the
>> + backend server to be retained after use;
>
>
> That last sentence is wrong, isn't it? (I'm using the
> two-steps-forward/one-step-back approach until I can't go any further. At
> least you don't have to look at the doc for apr_reslist_create() anymore ;)
> )
>
> I honestly don't know what min is used for since we only create connections
> on demand, unless min=0 means don't retain, and min>0 means retain.
>
Is the following true about min?
min only controls how many of the potential retained connection structures
(1-max) will be created when the reslist is created. It has no bearing on
connections, only on when the reslist data and memory pools are created. So
it only needs to be set to non-zero if the admin wants the pools associated
with the potential reslist elements to be created ASAP (for some cases that
would be in child init hooks).
> What I want to do as a user today: retain connections but don't use any if
> they've been idle for >= origin-server-keepalive seconds.
>
> ttl is the only timeout avail, so that has to be set to the origin's
> keepalive timeout
> ttl only applies to connections above smax, so smax needs to be set as low
> as allowable
>
> so perhaps
>
> ProxyPass / http://xxx/ ttl=5 smax={0,1,whatever it will accept}
>
I'm still having issues with conn-reset while trying to read the status line
from the origin server, using the following:
ProxyPass /proxy/ http://192.168.1.208:8080/weblogic/ min=0 ttl=5 smax=0
--0015174beceaecc2230490de02a1
Content-Type: text/html; charset=ISO-8859-1
Content-Transfer-Encoding: quoted-printable
=On Wed, Sep 22= , 2010 at 2:37 PM, <trawick@apache.org> wrote:Author: trawick
Date: Wed Sep 22 18:37:16 2010
New Revision: 1000130
URL: http://svn.apache.org/viewvc?rev=3D1000130&view=3Drev=
Log:
follow up r956069 with additional clarifications
about the connection pool and related parameters
(yes, and fix part of those earlier "clarifications")
Modified:
=A0 =A0httpd/httpd/trunk/docs/manual/mod/mod_proxy.xml
Modified: httpd/httpd/trunk/docs/manual/mod/mod_proxy.xml
URL: http://svn.apache.org/viewvc/httpd/httpd/trunk/d= ocs/manual/mod/mod_proxy.xml?rev=3D1000130&r1=3D1000129&r2=3D100013= 0&view=3Ddiff
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D
--- httpd/httpd/trunk/docs/manual/mod/mod_proxy.xml (original)
+++ httpd/httpd/trunk/docs/manual/mod/mod_proxy.xml Wed Sep 22 18:37:16 201= 0
@@ -764,13 +764,12 @@ expressions</description>
=A0 =A0 using =A0<code>key=3Dvalue</code> parameters, describe= d in the table
=A0 =A0 below.</p>
- =A0 =A0<p>Setting <code>min</code> will determine how m= any connections to
- =A0 =A0the backend server will be retained after use. =A0Up to the
- =A0 =A0Soft Maximum, or <code>smax</code>, number of connecti= ons will be
- =A0 =A0created on demand. =A0Any connections above <code>smax</c= ode> are
- =A0 =A0subject to a time to live, or <code>ttl</code>. =A0Apa= che httpd will
- =A0 =A0never create more than the Hard Maximum or, <code>max</co= de>,
- =A0 =A0connections to the backend server.</p>
+ =A0 =A0<p>Setting <code>min</code> to non-zero allows c= onnections to the
+ =A0 =A0backend server to be retained after use;
That last sentence is wrong, isn't it?=A0 (I'm using the t= wo-steps-forward/one-step-back approach until I can't go any further.= =A0 At least you don't have to look at the doc for apr_reslist_create()= anymore ;) )
I honestly don't know what min is used for since we only create con= nections on demand, unless min=3D0 means don't retain, and min>0 mea= ns retain.
What I want to do as a user today: retain = connections but don't use any if they've been idle for >=3D orig= in-server-keepalive seconds.
ttl is the only timeout avail, so that has to be set to the origin'= s keepalive timeout
ttl only applies to connections above smax, so smax = needs to be set as low as allowable
so perhaps
ProxyPass / http://xxx/ =A0 ttl=3D5=A0 smax= =3D{0,1,whatever it will accept}