Re: LinkageError

[Simon Dubey]

---------------------------------------------------------------- BEFORE YOU POST, search the faq at <http://java.apache.org/faq/> WHEN YOU POST, include all relevant version numbers, log files, and configuration files. Don't make us guess your problem!!! ---------------------------------------------------------------- Maybe you have solved this already, if not it looks very similar to a problem I encountered when moving to multiple jservs. My problem was happening when some-one entered the url path as the wrong case (or mixed case) e.g. http://mysite.com/DEV/test.jsp entered as http://mysite.com/Dev/test.jsp I hope this helps Simon. Ulisses Reina Montenegro wrote: > ---------------------------------------------------------------- > BEFORE YOU POST, search the faq at <http://java.apache.org/faq/> > WHEN YOU POST, include all relevant version numbers, log files, > and configuration files. Don't make us guess your problem!!! > ---------------------------------------------------------------- > > JServ gurus, > > After about a full year of flawless JServ performance I've stumbled upon > a problem I found no clue on the FAQ and have never seen reported on the > list. We recently switched from single-apache->single-jserv to > single-apache->multipe-jservs for developmente because developers > sometimes needed to shutdown/restart either JServ or Apache and some > were really pissed at having their projects shutdown because all of them > used the same JServ instance. Anyway, one of our systems was moved from > a all-in-one JServ box to one nicer jserv-per-developer server and > suddenly I started getting the following messages: > > java.lang.LinkageError: trying to redefine class ServletConsulta (bad > class loader?) > at java.lang.ClassLoader.defineClass0(Native Method) > at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled > Code) > at java.lang.ClassLoader.defineClass(ClassLoader.java, Compiled > Code) > at > org.apache.java.lang.AdaptiveClassLoader.loadClass(AdaptiveClassLoader.java, > Compiled Code) > at java.lang.ClassLoader.loadClass(ClassLoader.java, Compiled > Code) > at > org.apache.jserv.JServServletManager.load_init(JServServletManager.java, > Compiled Code) > at > org.apache.jserv.JServServletManager.loadServlet(JServServletManager.java, > Compiled Code) > at > org.apache.jserv.JServConnection.processRequest(JServConnection.java, > Compiled Code) > at org.apache.jserv.JServConnection.run(JServConnection.java, > Compiled Code) > at java.lang.Thread.run(Thread.java, Compiled Code) > > I first suspected the class files, but after md5 confirmed they were the > same files on the original machine, where it all worked, I was clueless. > I checked directory and file permissions, to no avail. This happens for > a particular servlet only, and JServ dummy servlets, like 'Hello' and > 'IsItWorking', when thrown in *any* of the configured zone's > repositories work fine. > > Anyone has any clue on this..? BTW, we're running JServ 1.0, which we > know is now *very* dated. But our code runs far more stable on JServ 1.0 > (internal server error/500 increase from tenfold to hundredfold when we > switch to 1.1). Anyone has any idea on any particular bug present on 1.0 > which was corrected in 1.1 for which our developers could have developed > workarounds which would not work on later JServs? > > Finally, thanks for the great code. We have about 900.000 page views/day > on a JServ cluster and it is rock solid. > > Thanks for your time > Ulisses > > -- > -------------------------------------------------------------- > Please read the FAQ! <http://java.apache.org/faq/> > To subscribe: [EMAIL PROTECTED] > To unsubscribe: [EMAIL PROTECTED] > Archives and Other: <http://java.apache.org/main/mail.html> > Problems?: [EMAIL PROTECTED] -- -------------------------------------------------------------- Please read the FAQ! <http://java.apache.org/faq/> To subscribe: [EMAIL PROTECTED] To unsubscribe: [EMAIL PROTECTED] Archives and Other: <http://java.apache.org/main/mail.html> Problems?: [EMAIL PROTECTED]