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From Ben Souther <...@souther.us>
Subject Re: 20 Tips for Using Tomcat in Production
Date Tue, 21 Aug 2007 17:45:47 GMT
Tip #8:

You tell the users about the tomcat-users.xml file for adding the role
info but never tell them where to enter the RemoteAddrValve in order to
restrict IPs.





On Tue, 2007-08-21 at 10:57, Shane Witbeck wrote:
> David,
> 
> Thanks for your comments. I've added them to the blog post for
> everyone's benefit.
> 
> Shane
> 
> On 8/21/07, David Delbecq <delbd+jakarta@oma.be> wrote:
> > Very nice. May i suggest 2 comments perhaps?:
> >
> > 6... If you're loading several applications with several of the same
> > library dependencies, consider moving them from the applications'
> > |WEB-INF/lib| directory to Tomcat's shared library
> > |{catalina.home}/shared/lib|. This will reduce the memory used by each
> > application and result in smaller WAR files.
> >
> > You should make a remark that this change the behaviour of webapp:
> >  a) Shared classloader is searched in last ressort when looking for
> > classes, according to
> > http://tomcat.apache.org/tomcat-5.5-doc/class-loader-howto.html.
> >  b) Because the classes are shared, they share config & singletons and
> > if they store objects statically they will prevent webapp unloading
> >
> >
> > 7...Consider JDK 1.5 or even better JDK 1.6 to take advantage of
> > performance improvements.
> >
> > Note that you can gain even more performance if you recompile your
> > "string concatenation hungry" (d="aaaa"+b+"ccc") support libaries for
> > jdk 5+ on a multi CPU system. This is because jdk5 uses the
> > non-synchronized stringbuilder instead of the jdk 4- synchronized
> > StringBuffer. And synchronization over multiple cpu takes a few more
> > cycles than on single CPU machines.
> >
> >
> >
> > En l'instant précis du 21/08/07 14:10, Shane Witbeck s'exprimait en ces
> > termes:
> > > I thought my latest blog post would be of interest to the people on this list:
> > >
> > > http://www.digitalsanctum.com/2007/08/18/20-tips-for-using-tomcat-in-production/
> > >
> > > ---------------------------------------------------------------------
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> > >
> >
> >
> > --
> > http://www.noooxml.org/
> >
> >
> > ---------------------------------------------------------------------
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> >
> >


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