unpackWARs, and annotation exceptions
Hello, I mentioned in an previous question that newer releases of tomcat7 (Windows) seems to be unpacking our war files to webapps when it wasn't doing that previously. We were running fine prior to this and have encountered some issues replacing the war files with the corresponding webapps dir not being updated properly (so we usually just delete them prior to replacing the war). I found unpackWARs in server.xml but according to the documentation: "WAR files located outside of the Host's appBase will not be expanded." Which doesn't seem to be the case for us (we're outside, but being expanded) - unless I've misunderstood something. So I changed that to false and started tomcat, but got errors along these lines from our two wars... SEVERE: Unable to process Jar entry [com/google/gwt/thirdparty/guava/common/base /Platform.class] from Jar [jar:jndi:/localhost/admin/WEB-INF/lib/gwt-servle t-2.6.1.jar!/] for annotations java.io.EOFException at org.apache.tomcat.util.bcel.classfile.FastDataInputStream.readInt(Fas tDataInputStream.java:145) at org.apache.tomcat.util.bcel.classfile.ClassParser.readID(ClassParser. java:200) SEVERE: Unable to process Jar entry [org/apache/james/mime4j/field/address/Mailb ox.class] from Jar [jar:jndi:/localhost/admin/WEB-INF/lib/apache-mime4j-0.6 .jar!/] for annotations java.io.EOFException at org.apache.tomcat.util.bcel.classfile.FastDataInputStream.readUnsigne dShort(FastDataInputStream.java:120) at org.apache.tomcat.util.bcel.classfile.Utility.swallowFieldOrMethod(Ut ... Jan 17, 2015 5:45:27 PM org.apache.catalina.startup.HostConfig deployDescriptor INFO: Deploying configuration descriptor C:\tomcat\conf\Catalina\loca lhost\ROOT.xml Jan 17, 2015 5:45:33 PM org.apache.catalina.startup.ContextConfig processAnnotat ionsJar SEVERE: Unable to process Jar entry [org/apache/james/mime4j/field/address/Mailb ox.class] from Jar [jar:jndi:/localhost/WEB-INF/lib/apache-mime4j-0.6.jar!/] for annotations java.io.EOFException at org.apache.tomcat.util.bcel.classfile.FastDataInputStream.readUnsigne dShort(FastDataInputStream.java:120) ... SEVERE: Unable to process Jar entry [com/google/gwt/thirdparty/guava/common/base /Platform.class] from Jar [jar:jndi:/localhost/WEB-INF/lib/gwt-servlet-2.6.1.jar !/] for annotations java.io.EOFException at org.apache.tomcat.util.bcel.classfile.FastDataInputStream.readInt(Fas tDataInputStream.java:145) at org.apache.tomcat.util.bcel.classfile.ClassParser.readID(ClassParser. java:200) ... For now, we'll probably just leave unpackWARs to true, and delete the webapps dirs - but if anyone has any insight... Thanks.
Re: Where are my non-persistent sessions stored ?
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 Sreyan, On 1/17/15 12:45 PM, sreya...@gmail.com wrote: > I am new to Tomcat and interested in learning how to works > internally. I was reading the following thread on JavaRanch but it > did not give a concrete answer-: > > http://www.coderanch.com/t/467039/Tomcat/sessions-stored Tim Holloway answered this in the second response on "10/19/2009 5:48:56 AM". > Does the container use an Array-List or a HashMap to store the > HTTPSessions? The servlet specification does not mandate any particular storage mechanism, so the container is free to decide what is best. > What is the limit of the maximum sessions? There is a very large theoretical maximum of (Integer.MAX_VALUE/2) * Integer.MAX_VALUE because String values (session ids) are limited to MAX_VALUE characters and characters are identified by integers. But you'll run out of storage (or any kind) way before that. > Are the sessions stored in RAM? The servlet specification does not mandate any particular storage mechanism, so the container is free to decide what is best. In Tomcat, sessions are stored in memory (Java heap) by default. There are other mechanisms that can persist session information to various places. The standard manager will persist sessions to the disk during webapp reloads, but otherwise the sessions reside exclusively in memory. > I am aware that persistent sessions will need a > data-store/database to the sessions. But how does it handle the non > persistent ones ? I encourage you to look at the source for StandardManager if you want to really know what's going on. > I have also consulted-: > http://tomcat.apache.org/tomcat-8.0-doc/config/manager.html > > But this too failed to give the location of non-persistent > sessions. Java heap memory. > Anyone who does Tomcat development and meddles around with the > source, there feedback will be highly appreciated. Check the source code. Start with org.apache.catalina.session.StandardManager - -chris -BEGIN PGP SIGNATURE- Version: GnuPG v1 Comment: GPGTools - http://gpgtools.org iQIcBAEBCAAGBQJUurDmAAoJEBzwKT+lPKRYXaAQALx2GJgHjYNaj24WymwvkOoX sf1r4e7jQJyKvAMvlDqw5nyULlnCgP+ty2Eti/zEJSadQpvFvJwq+eImtYEWONsF Ox0Mi8wVHZgoe8sOFowUY+Jh3QlNBf+fa0y/6zszMvxmO4oajXNOwVq/tqzPlTvb ta2LiGhj+bqcuklS45sBNG29MRXYLV4bwXm0SOSBTUhpA2f3HGvcDFJ7jSlPbChC 4xb9jObhOzdrrFAK06Wytnfebv0jp9InibT6/UoHOkv4CI7nzcwIAULYL+lhjHUx 6qrKwkQBd00F+jdzwquhREEKIIhIoPrYuEI/PlXNz2km+INIVVbQP+VqbFh0YQn8 8N5Ik8qOBPxZfAbSSFYfLHWS/2BxNQJ4KpK7bdek9G+uOMppcd6R5c+d931r9xAm HOMor8dl087tT56kDGt0gASNxAniIuguN5pU/69xSeWC7/545IcNwfcXZSmBuzd+ ypoa0rict6SiVRxtVxfg61LjhSfCnkfbxbSSuIJsipvPB/4WLYF3PMDrRT+frQWI zlUr3Ithy2RAUyplC4jxuK8czV+a2Kl8iCdSJW0C1lL4BKeu/C5DSNA7ajd2dmoe T27DzHBBWqJJ3Kmy4uyRL7T8XXgh5Ut//vwKPq+JmtYesqU397CR1MPB2H+DyXGv Ubbs7yND+vMkpozn9M9+ =bsUx -END PGP SIGNATURE- - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
Where are my non-persistent sessions stored ?
I am new to Tomcat and interested in learning how to works internally. I was reading the following thread on JavaRanch but it did not give a concrete answer-: http://www.coderanch.com/t/467039/Tomcat/sessions-stored Does the container use an Array-List or a HashMap to store the HTTPSessions ? What is the limit of the maximum sessions ? Are the sessions stored in RAM ? I am aware that persistent sessions will need a data-store/database to the sessions. But how does it handle the non persistent ones ? I have also consulted-: http://tomcat.apache.org/tomcat-8.0-doc/config/manager.html But this too failed to give the location of non-persistent sessions. Anyone who does Tomcat development and meddles around with the source, there feedback will be highly appreciated. Regards Sreyan Chakravarty
Re: Tomcat 8.0.15, EL Performance
Hmmm. No performance loss with simple single jsp page. I will try to track it down some more. The application has database functionality, many xsl transformations, Solr search and so on. I will first reduce the functionality and hopefully find the bottleneck. Thanks so far. Dirk Am 17.01.2015 02:03 schrieb "Mark Thomas" : > On 16/01/2015 16:01, Dirk Högemann wrote: > > Hello, > > > > I am trying to upgrade a JSP-based application, which is usually hosted > on > > Tomcat (currently 7.0.57) to Version 8.0.15. > > > > Unfortunately I am facing a massive performance degradation - only 40% of > > the performance of 7.0.56 is reached when running the exact same JMeter > > Test with Tomcat8. > > > > Relevant value here is: 24 page impressions per second on Tomcat 8.0.15. > > On Tomcat 7.0.56 it reaches up to 60 PI/s. > > > > A sampler captured with JVisual VM shows a hotspot on Class: > > > > org.apache.jasper.el.JasperELResolver.getValue -> 63,9 % of CPU self time > > > > Tomcat 7.0.57: 0,8 % > > > > Usage of Java8 or Java7 makes no difference. > > > > Any ideas to improve the performance? > > Not yet. > > > Or is anybody facing similar issues? > > Not that I recall. > > Can you simplify this to a single JSP (ideally as simple as possible) > that is significantly slower on 8.0.x compared to 7.0.x? With that, we > can take a look at what is going on. > > Mark > > > - > To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org > For additional commands, e-mail: users-h...@tomcat.apache.org > >
