2014-09-15 2:04 GMT+04:00 André Warnier <a...@ice-sa.com>: > Mark Eggers wrote: >> >> -----BEGIN PGP SIGNED MESSAGE----- >> Hash: SHA1 >> >> On 9/14/2014 1:55 PM, Robert Boyle wrote: >>> >>> Hi, >>> >>> >>> >>> Here's what I'm trying to do: >>> >>> >>> >>> I'm building a web-based cueing system for a theatre. Until I >>> figure out how to use WebSockets, my system will use JavaScript to >>> refresh the webpage every second with a "cue status file". This is >>> an HTML file built on the fly by VB (or Python). One second latency >>> is no problem. >>> >>> >>> >>> The problem: >>> >>> >>> >>> Unfortunately (for this application) Tomcat caches the web page >>> internally for 5 seconds by default, so the maximum cumulative >>> latency is 6 seconds which is a bit much. >>> >>> I believe I can change this by setting the CacheTTL parameter but, >>> when I try to do this in BASEDIR/conf/context.xml by adding the >>> line >>> >>> <cacheTTL=1000>, the server won't start and spews out many lines of >>> error messages. >>> >>> >>> >>> I am a total newcomer to Tomcat but I've spend some hours trying to >>> find examples of config files on the web with little success. >>> >>> Obviously I haven't understood the syntax required here so any help >>> is gratefully received. >>> >>> >>> >>> Environment: >>> >>> Tomcat 8.0.12 >>> >>> Windows 7 / 32bit >>> >>> >>> >>> >>> >>> Robert >> >> >> Robert, >> >> That doesn't appear to be available in Tomcat 8 (quick view of the >> Javadoc). >> >> Also, I tried the following (after reading the 7.x docs) which failed >> as expected. >> >> <Context cacheTTL="1000"> >> </Context> >> >> In Tomcat 7 (7.0.55), you can set this with the following syntax. >> >> <Context cacheTTL="1000"> >> </Context> >> >> See the reference here: >> >> http://tomcat.apache.org/tomcat-7.0-doc/config/context.html >> >> 7.0.55 has WebSockets. >> >> . . . just my two cents >> /mde/ > > > And mine : > https://tomcat.apache.org/tomcat-6.0-doc/config/context.html#Attributes > > In 6.0, these Context - cache* attributes seem to have been there, but they > have disappeared in 8.0. > > > Or at least in the doc : > https://tomcat.apache.org/tomcat-8.0-doc/config/context.html#Attributes
In Tomcat 8 it is <Context> <Resources cacheTTL="1000"/> </Context> http://tomcat.apache.org/tomcat-8.0-doc/config/resources.html http://tomcat.apache.org/migration-8.html#Web_application_resources >>> when I try to do this in BASEDIR/conf/context.xml by adding the >>> line 1. conf/context.xml is the default Context configuration file, shared by all web applications. You would better create a file for your own web application, instead of modifying the defaults. >>> >>> <cacheTTL=1000>, the server won't start and spews out many lines of ... 2. The above line is not syntacticly valid to appear in an XML file. http://en.wikipedia.org/wiki/XML http://www.xmlnews.org/docs/xml-basics.html Best regards, Konstantin Kolinko --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
