Author: ron.sigal(a)jboss.com
Date: 2009-04-14 21:30:20 -0400 (Tue, 14 Apr 2009)
New Revision: 5035
Modified:
remoting2/branches/2.x/docs/guide/en/chap9.xml
Log:
JBREM-1082: Added reference to Client.USE_ALL_PARAMETERS; (2) JBREM-1112: added reference
to FAILURE_DISCONNECT_TIMEOUT; (3) JBREM-1108: noted validatorPingPeriod should be longer
than validatorPingTimeout.
Modified: remoting2/branches/2.x/docs/guide/en/chap9.xml
===================================================================
--- remoting2/branches/2.x/docs/guide/en/chap9.xml 2009-04-14 18:04:38 UTC (rev 5034)
+++ remoting2/branches/2.x/docs/guide/en/chap9.xml 2009-04-15 01:30:20 UTC (rev 5035)
@@ -57,13 +57,46 @@
"validatorPingTimeout") - specifies the time, in milliseconds, allowed for
arrival of a response to a PING message. The default value is 1000.</para>
- <para>For more configuration parameters, see <xref
- linkend="section-interactions"/>.</para>
+ <para><emphasis
role="bold">FAILURE_DISCONNECT_TIMEOUT</emphasis> (actual value
+ "failureDisconnectTimeout") - if the parameter
"stopLeaseOnFailure"
+ (see <xref linkend="section-interactions"/>) is set to
+ "true", then "failureDisconnectTimeout" determines the disconnect
timeout value
+ to be used by <classname>org.jboss.remoting.LeasePinger</classname> in
shutting
+ down. In particular, if "failureDisconnectTimeout" is set to
"0", then
+ <classname>LeasePinger</classname> will avoid any network
i/o.</para>
- <para>Note, also, that <classname>ConnectionValidator</classname>
creates a
+ <para> Normally, the values for these parameters are obtained either from
+ the <classname>Client</classname>'s configuration map or the metadata
map
+ passed to <methodname>addConnectionListener()</methodname>, with values
in
+ the metadata map taking precedence. However, another relevant parameter is
+ defined in
<classname>org.jboss.remoting.Client</classname>:</para>
+
+ <para><emphasis role="bold">USE_ALL_PARAMS</emphasis>
(actual value
+ "useAllParams") - this parameter is searched for in the
+ <classname>InvokerLocator</classname>, in the configuration map passed
to
+ the <classname>Client</classname>, and in the metadata map (in that
order).
+ If the last occurrence found is set to "true", then parameter values are
+ first obtained from the <classname>InvokerLocator</classname>, followed
by
+ the <classname>Client</classname>'s configuration map and the
+ metadata map.</para>
+
+ <para>Note that <classname>ConnectionValidator</classname> creates
a
client invoker to sends the PING messages, and it passes the metadata map to
configure the client invoker.</para>
+ <para><emphasis role="bold">NOTE.</emphasis> The default
values of VALIDATOR_PING_PERIOD
+ and VALIDATOR_PING_TIMEOUT have often been found in practice to be too small,
increasing
+ the likelihood of spurious connection failures.</para>
+
+ <para><emphasis role="bold">NOTE.</emphasis> It is
important to set VALIDATOR_PING_PERIOD
+ to a value greater than the value of VALIDATOR_PING_TIMEOUT. Doing so gives the
+ <classname>ConnectionValidator</classname> a chance to notify all
+ <classname>ConnectionListener</classname>s, which might result in
shutting down the
+ connection, before the next PING is sent.</para>
+
+ <para>For more configuration parameters, see <xref
+ linkend="section-interactions"/>.</para>
+
</section>
<section id="section-server-side" xreflabel="Server side
monitoring">
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