November 2008 - jboss-user - Jboss List Archives

[Clustering/JBoss] - Re: strace shows futex

by bstansberry＠jboss.com

I've asked the JGroups developers to respond to this question. VIEW_SYNC is not one of the standard protocols we include in the JBoss AS channel configurations, so I'm not as familiar with all of its pros and cons as I am with most protocols, and I don't want to give you wrong information. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192268#4192268 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192268

17 years, 5 months

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[JBoss Cache: Core Edition] - Re: JDBMCacheLoader location property

by cavani

After some tests, I realize the size doesn't shrink. I am using cache to store results from batch processing. The data are regenerated everyday. With the "remove leak", the data file grows very quick. Anyway, I give a second try with H2 embedded and JDBCCacheLoader. After removing transaction support from SFSB (that operates with the cache) and doing "put" with all data map per node instead "put" with each key/value pair, the full time and total size is the same as using JDBM backend. The load time is good too. The H2 roadmap indicates it will improve BLOB support. After removing notes, the database doesn't shrink immediately, but after some background "cleanup" when closing database. The size during storage stay in a reasonable limit (I really don't have idea how 200MB of data approach 13GB in "temp"). I will do more tests but the current results are favorable. P.S.: the location property bug is present in BDB JE CL start too. Thanks, View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192267#4192267 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192267

17 years, 5 months

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[Beginners Corner] - Re: Exception handling and error in general

by PeterJ

Oh, one other though. You can have the JSP ignore the exception, and then in your web.xml place an error handler that will display an error page: <error-page> | <exception-type>java.lang.Exception</exception-type> | <location>/error.html</location> | </error-page> View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192266#4192266 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192266

17 years, 5 months

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[Beginners Corner] - Re: Exception handling and error in general

by PeterJ

I recommend that the method making the Class.forName() call not catch the exception, or perhaps repackage the caught exception into another exception and throw that. Then let the caller catch the exception. In your case, the code in your JSP would have to catch the exception and generate html to display an error. If you do not do this, you would need some other mechanism to propagate the fact that an exception happened, which means that you are just re-inventing exception handling, and it will mean a fair bit of coding that you can avoid by simply using the exception mechanisms. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192265#4192265 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192265

17 years, 5 months

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[Persistence, JBoss/CMP, Hibernate, Database] - Problems with JPA/Hibernate persist

by jharby1

I am having problems with EntityManager.persist - I am not getting any errors but on this insert I'm trying below nothing is going in the database (MS SQLServer). This is running in JBoss from an SLSB so I am using the CMT. In some prior methods I am successfully populating some objects from the DB using find so I know the connection is ok. Has anyone else run into this. | private int insertLockRecord(PolicyFundingInfo policyFundingInfo) { | EntityManagerFactory emf = Persistence.createEntityManagerFactory("PolicyPersistenceUnit"); | EntityManager em = emf.createEntityManager(); | RecordlockEntity recordlockEntity = new RecordlockEntity(); | recordlockEntity.setUsername("PolicyServ"); | recordlockEntity.setLockdate(new Timestamp(new Date().getTime())); | recordlockEntity.setRecordkey(Integer.toString(policyFundingInfo.getCertmainseqno())); | recordlockEntity.setRecordtype("POL"); | try { | em.persist(recordlockEntity); | } | catch (Throwable e) { | e.printStackTrace(); | } | Integer recordLockKey = new Integer(0); | em.close(); | return recordLockKey.intValue(); | } | View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192262#4192262 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192262

17 years, 5 months

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[JBoss Cache: Core Edition] - Re: JDBMCacheLoader location property

by genman

The earlier cache loader probably should be fixed, filed as JBCACHE-1447. For JDBM is the size of the datafile never decreases. This may be an issue to some people but in practice it's probably okay as empty space is eventually reused. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192261#4192261 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192261

17 years, 5 months

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[Installation, Configuration & DEPLOYMENT] - Re: Shared lib failure: org.apache.jasper.JasperException

by rodfreire

Peter, Worked like a charm!! Thanks a lot!! View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192260#4192260 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192260

17 years, 5 months

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[Beginners Corner] - Exception handling and error in general

by maz00

Hi all, I'm pretty new to jsp. I have a class set up that connects to the database and returns the result if successul. I call it from my .jsp which works fine. My question is lets say I force it to cause an exception by chaging the word microsoft in the following statement 'Class.forName("com.microsoftssss.sqlserver.jdbc.SQLServerDriver"); . How do I show that exception in my jsp since it's been thrown in my class and being caught in the class as well too. What's the best way of doing this? Thanks Maz View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192258#4192258 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192258

17 years, 5 months

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[Beginners Corner] - Re: Setting up JBOSS 5 Server on my local computer

by maz00

Thanks guys View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192256#4192256 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192256

17 years, 5 months

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[Installation, Configuration & DEPLOYMENT] - Re: Shared lib failure: org.apache.jasper.JasperException

by PeterJ

Try this. Place the displaytag-1.1.jar at server/xxx/deploy/jboss-web.deployer/jsf-libs. That is where the JSF JAR files (with the inlcuded tag libraries) are located; perhaps your tag libraries will be picked up from there also. anonymous wrote : It does work with our official JBoss [EAP] 4.3.0.GA_CP02 if the lib is packaged inside the application WAR at WEB-INF/lib; By the way, this is the correct solution. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4192255#4192255 Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&p=4192255

17 years, 5 months

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jboss-user November 2008