> -----Original Message----- > From: Martin Gainty [mailto:mgai...@hotmail.com] > Sent: Saturday, July 28, 2012 10:02 AM > To: Tomcat Users List > Subject: RE: Speeding up RMI calls > > > Andrew > > It *sounds* like you are battling a network latency problem > Can you identify the target RMI server then do a simple tracert from > client to RMI Server to determine which intermediate node is causing > the delay? > > Martin
I thought so too at first, so I moved them to the same machine with the same results. Overloading the classloader so that every RMI call did not contain a list of 300+ "C:\Program Files\Tomcat\webapps\Root\WEB-INF\lib\my.jar;" corrected the issue though. -Andrew > > > > > > On 09/07/2012 16:55, Andrew Kujtan wrote: > > > > > Tomcat Version: 7.0.27 > > > > > > > > > > OS: Windows XP/7 > > > > > I'm fixing an issue we are having with a webapp that does some > > > > > communication over RMI with a remote server. Calls that would > be > > > > > instant in similar applications not inside the tomcat container > > are > > > > > taking more than 30 seconds when called from tomcat. After > > > debugging > > > > > I've found that when an RMI call is made, the classlist > > containing > > > > > all the jars in the webapp lib folders is being serialized with > > the > > > > data. > > > > > Which wouldn't be a problem normally, except the webapp has > >300 > > > jars > > > > > in its lib folder. > > > > > > > > In the other similar applications, are there 300+ jars on the > > > classpath > > > > too? > > > > > > > > > > > > p > > > > > > Yes they are there as well, but the RMI calls don't include them, > or > > > any > > > urls > > > for that matter. > > > > > > > > > > > > The only solution I have found is to create a custom > > > > WebAppClassloader > > > > > that returns a zero length URL array on the getURLs() call. We > > > don't > > > > > do any dynamic class loading so breaking that is not a problem. > > > > > > > > > > My question is, is there any other way to resolve this, like a > > > > > configuration property? If not, are there any problems that I > am > > > > going > > > > > to introduce by overriding this method? Can I override the > > > > classloader > > > > > for just this webapp or am I stuck doing it for the entire > tomcat > > > > > instance? > > > > > > > > > > > > > > > > > > > > Thanks, > > > > > > > > > > Andrew Kujtan > > > > I guess no one has run into this issue before, I've pushed it through > > and am just overloading the classloader in the server.xml > > > > Hopefully this doesn't break anything. > > > > --------------------------------------------------------------------- > > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > > For additional commands, e-mail: users-h...@tomcat.apache.org > > > --------------------------------------------------------------------- To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
