RE: [JBoss-user] 3.2.0 Crashed Out Of Memory After 1 Hour...
1.4.1 has a memory leak in java.lang.StringBuffer, if you reuse it alot filip -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Hunter Hillegas Sent: Saturday, April 12, 2003 5:24 PM To: JBoss User Subject: Re: [JBoss-user] 3.2.0 Crashed Out Of Memory After 1 Hour... Running the default config with a couple of my EARs installed. I downgraded to 1.4.0_04 and so far, memory use seems more stable. I'm on Linux. From: Nicholas [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Date: Sat, 12 Apr 2003 16:30:21 -0700 (PDT) To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] 3.2.0 Crashed Out Of Memory After 1 Hour... Are you seeing this with no additional modules deployed ? Just the bare installation ? I have been running 2 3.2 clustered instances on NT with 1.4.1_02 and they have been flat memorywise. //Nicholas --- Hunter Hillegas [EMAIL PROTECTED] wrote: Interesting. Anyone else have trouble with this combo? Perhaps I need to downgrade to 1.4.0? Hunter From: Bradley McLean [EMAIL PROTECTED] Reply-To: [EMAIL PROTECTED] Date: Sat, 12 Apr 2003 18:04:44 -0400 To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] 3.2.0 Crashed Out Of Memory After 1 Hour... * Hunter Hillegas ([EMAIL PROTECTED]) [030412 17:48]: Just upgraded to 3.2.0 and it ended up crashing after about 1 hour of use... We have allocated 900MB to the JVM and never had OOM with 3.0.6. Anyone else seeing huge memory usage? We are: SMP Linux, JDK 1.4.1_02 (Sun). We've had trouble with that combination, with JBoss 3.0.4 and other java code. We use 1.4.0 on SMP Linux because of that. --- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user --- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user = Nicholas Whitehead Home: (973) 377 9335 Cell: (201) 615 2716 [EMAIL PROTECTED] Get Your News From The Crowbar: http://crowbar.dnsalias.com:443/crowbar/ --- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user --- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user --- This SF.net email is sponsored by: Etnus, makers of TotalView, The debugger for complex code. Debugging C/C++ programs can leave you feeling lost and disoriented. TotalView can help you find your way. Available on major UNIX and Linux platforms. Try it free. www.etnus.com ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
[JBoss-user] Override the Manager element for embedded Tomcat
I'm trying to use the Tomcat persistence manager for sessions with embedded JBoss 3.0.6 DefaultContext cookies = true crossContext = true override = true Manager className=org.apache.catalina.session.PersistentManager all other attributes here/ /DefaultContext) I'm changing this in the file /default/deploy/tomcat41-service.xml but the wars still get deployed with the StandardManager, any thoughts? Filip --- This SF.net email is sponsored by:Crypto Challenge is now open! Get cracking and register here for some mind boggling fun and the chance of winning an Apple iPod: http://ads.sourceforge.net/cgi-bin/redirect.pl?thaw0031en ___ JBoss-user mailing list [EMAIL PROTECTED] https://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] JDBC / ResultSet Question
Currently in our project we have well over 15,000,000 data items in the database and a user will do a search for certain criteria. Some of the queries are returning 10,000+ rows. are you using all these rows (10,000+). if not. why even pull them out of the database. if these results are intended for a user. only retrieve as many as the user wants to see. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Matt Veitas Sent: Tuesday, June 19, 2001 4:40 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] JDBC / ResultSet Question CachedRowSet is a great way to implement sending a resultset over the wire, but what about in the case where you may have thousands of records to list. I am not using JBoss as of now, just using plain servlets/jsp on my project, but I am always looking for a better way to code the idea of paging through a ResultSet. Currently in our project we have well over 15,000,000 data items in the database and a user will do a search for certain criteria. Some of the queries are returning 10,000+ rows. Right now we have a piece of code that maintains the connection to the DB, along with the ResultSet so that we can page through the data set. The jsp page will access it and get the data straight from the ResultSet. We will be starting to convert our web app over to EJB in the next few months, but was how others are handling cases such as this with EJB...I was thinking about a stateful session bean to take care of this, but the only question is how to maintain the connection, statement, and ResultSet when ejbPassivate() needs to be called? Any other suggestions on how to do this or experiences with such a thing would be great. Matt -- [EMAIL PROTECTED] 703-304-6988 Emerging Paradigms Corporation innovative ideas for smarter solutions http://www.emerging-paradigms.com/ -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of David Ward Sent: Tuesday, June 19, 2001 7:00 PM To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] JDBC / ResultSet Question Look at CachedRowSet implementation from Sun - it is Serializable and can be disconnected: http://developer.java.sun.com/developer/Books/JDBCTutorial/chapter5.html David -- Mike korcynski wrote: Hello: I am currently working on a project using JBoss 2.2. I have stumbled upon a strange problem I was hoping someone could help me with. I have a method in a session bean that will perform an ad hoc query on a database and return the results to the client in a ResultSet. However, it appears that the implementation of ResultSet is not serializable: Caused by: java.io.NotSerializableException: org.opentools.minerva.jdbc.ResultSetInPool Am I doing something wrong or is this some sort of bug? It would seem useful to be able to return a ResultSet to a client. Can someone advise? Thank you for your time. Mike Korcynski __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] TomCat and Apache
will version 3.2.2 of tomcat work with apache 1.3.12 have you tried why don't you try and let us know. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] Everlasting sessionbean
A bean is not allowed to access a socket unless it is being passed as a reference into a method call. a bean holding a reference to a socket will prevent it from being properly serialized, and replicated. 2. is there a problem if the session bean's function never returns?? It is reading from the socket forever. yes, you are violating the spec. why would you want to do this with a bean? use a regular Java object. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Javier Muguruza Sent: Tuesday, June 05, 2001 11:11 AM To: [EMAIL PROTECTED] Subject: [JBoss-user] Everlasting sessionbean Hi, I want to use a sesssion bean (dont know yet wether it will be statefull, stateless or it does not matter) to read data from a socket (comming from a non ejb application). This bean would proceed calling other session beans to do the actual work. I have tried with a stateless bean with jboss and it works, but i have a couple of questions: 1. now I am using a client app just to invoke the session bean's only function, is there a way in jboss to make a session bean instantiate and invoke a method without a client (just for easier administration). 3. Should it be statefull, statelesss... any other proposition? thank you, ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] how does this work (classpath)?
really the problem with putting your application classes into lib/ext is twofold: it mixes application classes with infrastructure, which will make upgrades, server re-configuration, scaling onto multiple servers, and various other administrative tasks more difficult. It also makes that application's classes available to all applications deployed on any JBoss instance that runs from that directory, which is messy at best. to add more info for this. you may experience strange behavior related to the classloaders. Remember that if some of your classes are loaded using the system class loader (for example) they may not have access to classes loaded by class loaders higher up in the loader stack. You will experience ClassNotFound, ClassCast, and other exceptions. It may also affect the functionality of the app server itself. in other words, yes you can put your classes in /lib/ext but you may cause yourself a good series of troubleshooting too. have fun Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] petstore 1.1.2 deployed successfully
go ahead ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Cuong Tran Sent: Friday, May 18, 2001 2:13 PM To: [EMAIL PROTECTED] Subject: [JBoss-user] petstore 1.1.2 deployed successfully Hi everyone, I have managed to successfully deploy petstore 1.1.2 on jboss 2.2.1-tomcat 3.2.1, using Hypersonic as the database. If anyone is interested, I'm willing to share what I've done. = Cuong Q. Tran [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] Firewall and JBoss
you also have the JMX HTTPConnector port - I believe this one is 8082 Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bob Cober Sent: Friday, May 11, 2001 4:45 PM To: [EMAIL PROTECTED] Subject: [JBoss-user] Firewall and JBoss Help! I am interested in locking the ports JBoss uses. 1099 if the default JNDI lookup that is fine. is the default RMI Object Port that can be controlled in jboss.xml. There is a third port that seems to be randomly assigned everytime the server is started. I have seen 1591, 2291, etc. I believe this port may be part of the default RMI Socket Factory or something. How can I control it? Thanks for any help you can provide _ Get your FREE download of MSN Explorer at http://explorer.msn.com ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] ZIP Manual
you can check out the manual cvs module from jboss cvs Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Edilmar Alves Sent: Wednesday, May 02, 2001 12:20 PM To: [EMAIL PROTECTED] Subject: [JBoss-user] ZIP Manual Hi, I'm new into JBoss and I'd like to download the complete manual, that is in HTML pages. Is there some FTP to download a zip file with all pages??? ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] org.xml.sax.SAXParseException: Document root element is missing
looks like you have crimson.jar in your classpath and this may conflict with some other JAXP implementation (Xerces, jaxp.jar, parser.jar) Filip ~Namaste - I bow to the divine in you~Filip HanikSoftware Architect[EMAIL PROTECTED]www.filip.net -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jason DurstSent: Tuesday, May 01, 2001 3:14 PMTo: [EMAIL PROTECTED]Subject: [JBoss-user] org.xml.sax.SAXParseException: Document root element is missing I am new to JBOSS and EJB's in general. I have created several beans and "jarr'ed" them along with the corresponding home interfaces, remote interfaces and the deployment descriptor. When I drop my jar file in the deploy folder, this is the error I get. I would appreciate it if anyone could give me a clue as to what the error is referring to with: org.xml.sax.SAXParseException: Document root element is missing. If additional information is necessary I would be glad to provide it. Thank you in advance for your help. I suspect that the problem is with my ejb-jar.xml file but I cannot find a reference to this error. jason the error message continues but I thought that this was the relevant part. [J2EE Deployer Default] Starting[J2EE Deployer Default] Cleaning up deployment directory[J2EE Deployer Default] Started[Auto deploy] Starting[Auto deploy] Watching E:\jboss-tomcat-2.2\jboss-2.2\deploy[Auto deploy] Auto deploy of file:/E:/jboss-tomcat-2.2/jboss-2.2/deploy/musicdb.jar[J2EE Deployer Default] Deploy J2EE application: file:/E:/jboss-tomcat-2.2/jboss-2.2/deploy/musicdb.jar[J2EE Deployer Default] Create application musicdb.jar[J2EE Deployer Default] install module musicdb.jar[Container factory] Deploying:file:/E:/jboss-tomcat-2.2/jboss-2.2/tmp/deploy/Default/musicdb.jar[Container factory] Document root element is missing.:-1:1[Container factory] org.xml.sax.SAXParseException: Document root element is missing.[Container factory] at org.apache.crimson.parser.Parser2.fatal(Parser2.java:3035)[Container factory] at org.apache.crimson.parser.Parser2.fatal(Parser2.java:3023)[Container factory] at org.apache.crimson.parser.Parser2.parseInternal(Parser2.java, Compiled Code)[Container factory] at org.apache.crimson.parser.Parser2.parse(Parser2.java:304)[Container factory] at org.apache.crimson.parser.XMLReaderImpl.parse(XMLReaderImpl.java:433)[Container factory] at org.apache.crimson.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:179)[Container factory] at javax.xml.parsers.DocumentBuilder.parse(DocumentBuilder.java:86)[Container factory] at org.jboss.metadata.XmlFileLoader.getDocument(XmlFileLoader.java:148)[Container factory] at org.jboss.metadata.XmlFileLoader.getDocument(XmlFileLoader.java:132)[Container factory] at org.jboss.metadata.XmlFileLoader.load(XmlFileLoader.java:89)[Container factory] at org.jboss.ejb.ContainerFactory.deploy(ContainerFactory.java, Compiled Code)[Container factory] at org.jboss.ejb.ContainerFactory.deploy(ContainerFactory.java, Compiled Code)[Container factory] at org.jboss.ejb.ContainerFactory.deploy(ContainerFactory.java, Compiled Code)[Container factory] at java.lang.reflect.Method.invoke(Native Method)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)[Container factory] at org.jboss.deployment.J2eeDeployer.startApplication(J2eeDeployer.java, Compiled Code)[Container factory] at org.jboss.deployment.J2eeDeployer.deploy(J2eeDeployer.java:178)[Container factory] at java.lang.reflect.Method.invoke(Native Method)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)[Container factory] at org.jboss.ejb.AutoDeployer.deploy(AutoDeployer.java:358)[Container factory] at org.jboss.ejb.AutoDeployer.run(AutoDeployer.java, Compiled Code)[Container factory] at org.jboss.ejb.AutoDeployer.startService(AutoDeployer.java, Compiled Code)[Container factory] at org.jboss.util.ServiceMBeanSupport.start(ServiceMBeanSupport.java:93)[Container factory] at java.lang.reflect.Method.invoke(Native Method)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1523)[Container factory] at org.jboss.util.ServiceControl.start(ServiceControl.java, Compiled Code)[Container factory] at java.lang.reflect.Method.invoke(Native Method)[Container factory] at com.sun.management.jmx.MBeanServerImpl.invoke(MBeanServerImpl.java:1628)[Container factory] at
RE: [JBoss-user] I really need the help
http://www.jboss.org/documentation/HTML/ch06s05.html
~
Namaste - I bow to the divine in you
~
Filip Hanik
Software Architect
[EMAIL PROTECTED]
www.filip.net
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Steve Zhang
Sent: Friday, April 27, 2001 1:24 PM
To: [EMAIL PROTECTED]
Subject: [JBoss-user] I really need the help
HI all:
I am using a session bean to call a entity bean. like following:
public class SignInLoggerManagerEJB implements javax.ejb.SessionBean
{
privateSignInLoggerHome mySignInloggerHome;
public SignInLoggerManagerEJB(){}
public void ejbRemove(){}
public void ejbActivate(){}
public void ejbPassivate(){}
public void setSessionContext(javax.ejb.SessionContext sc){}
public void ejbCreate()
public void generateSignInloggerHome(){
String signInloggerHomeName =
SignInLogger;//JndiBeanName.SIGN_IN_LOGGER;
try{
InitialContext jndiContext = new InitialContext();
Object ref = jndiContext.lookup(SignInLogger);
mySignInloggerHome = (SignInLoggerHome)
PortableRemoteObject.narrow(ref, SignInLoggerHome.class);
}
catch ( Exception ex){
throw new GeneralEjbException(ex);
}
}
}
in my generateSignInloggerHome() function I can not lookup the name of the
entity bean SignInLogger. Actially in the entity bean's ejb-jar file and
jboss.xml the jndi name is SignInLogger, why I can not look up?
what should
I do?
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RE: [JBoss-user] downloading the docs for local browsing
check out the manual cvs module from sourceforge then just build it and voila, you have the docs Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Maxime Levesque Sent: Thursday, April 26, 2001 8:18 AM To: [EMAIL PROTECTED] Subject: [JBoss-user] downloading the docs for local browsing The online browsable docs are great, but i'd like to download them, they don't seem to be packaged for downloading... (I live in an area where a dial up connection is the only choice)... __ Do You Yahoo!? Yahoo! Auctions - buy the things you want at great prices http://auctions.yahoo.com/ ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] ResultSet or minerva.ResultSetInPool
getUnderLyingResultSet returns a java.sql.ResultSet, and if you are using
racle then it returns oracle.jdbc.ResultSet or something like that, you have
to look up the exact class.
you get a classcast exception because you think it is a Minerva resultset.
getUnderLyingResultSet returns the actual driver's result set, not minervas
filip
~
Namaste - I bow to the divine in you
~
Filip Hanik
Software Architect
[EMAIL PROTECTED]
www.filip.net
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED]]On Behalf Of Jose Ramon
Diaz
Sent: Thursday, April 19, 2001 10:42 AM
To: JBOSS Mail List
Subject: [JBoss-user] ResultSet or minerva.ResultSetInPool
Hi,
We are trying to obtain a ResultSet from an Oracle database. We find
a trouble with Minerva types,
We are using JBoss 2.2, with JDBC 2.0 and Oracle 8.1.7.
We are using MinervaPool driver for the JDBC. In our configuration
files,
- jboss.jcml: We use 'org.jboss.minerva.xa.XADataSourceImpl' in
the Pool configuration
- jboss.properties:
#jboss.xa.xidclass=oracle.jdbc.xa.OracleXid
First, is OraclePool (oracle.jdbc.xa.client.OracleXADataSource) better
than MinervaPool (org.jboss.minerva.xa.XADataSourceImpl) ?
Second, When we try to execute a ResultSet from the EJB it throws:
[noticiasAccesoBD] Exception in
noticiasAccesoBD::obtenerNoticiasBoletin()
[noticiasAccesoBD] java.lang.ClassCastException:
org.opentools.minerva.jdbc.ResultSetInPool
[noticiasAccesoBD] at
es.westlaw.noticiasAccesoBDBean.obtenerNoticiasBoletin(Compiled Code)
The code we use:
l_query= "SELECT noticia FROM noticias";
l_pstmt = l_con.prepareStatement(l_query);
l_rst = l_pstmt.executeQuery();
// which of the next two lines should be here??
// l_rst2 =
((org.jboss.minerva.jdbc.ResultSetInPool)l_rst).getUnderlyingResultSet()
; // JBOSS
l_rst2 =
((org.opentools.minerva.jdbc.ResultSetInPool)l_rst).getUnderlyingR
esultSet()
; // JBOSS
while (l_rst2.next())
{
l_noticiasCLOB = ((OracleResultSet)l_rst2).getCLOB(1);
}
Any help would be appreciated...
Thanks in advance...
Jose R. Juan
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RE: [JBoss-user] ResultSet or minerva.ResultSetInPool
The code we use: l_query= "SELECT noticia FROM noticias"; l_pstmt = l_con.prepareStatement(l_query); l_rst = l_pstmt.executeQuery(); // which of the next two lines should be here?? a) l_rst2 = ((org.jboss.minerva.jdbc.ResultSetInPool)l_rst).getUnderlyingResultSet(); // JBOSS b) l_rst2 = ((org.opentools.minerva.jdbc.ResultSetInPool)l_rst).getUnderlyingResultSet() ; // JBOSS while (l_rst2.next()) the easiest way to find out is to add this line System.out.println( l_rst2.getClass().getName() ); ^^ before line a) and b) I couldn't tell you on top of my head which one it is, but this will tell you Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of danch Sent: Thursday, April 19, 2001 11:17 AM To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] ResultSet or minerva.ResultSetInPool He's casting what was returned from executeQuery so that he can call getUnderLyingResultSet. Filip Hanik wrote: getUnderLyingResultSet returns a java.sql.ResultSet, and if you are using ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] Not so much JBoss, but XSL/XSLT
not that this will solve your problem, it may help you fix it. http://www-106.ibm.com/developerworks/xml/library/x-xslt2/index.html?openl= bigx-2,t=gr,p=x.saxon I know that we used to cache the parsed XSL sheet, this way we increased our performance dramatically, otherwise, the XSLT parser has to parse the XSL everytime you use it. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Sent: Wednesday, April 18, 2001 7:55 AM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] Not so much JBoss, but XSL/XSLT We have run it under Optimize It and the objects appear to be cleaning up properly - in fact, the profiling tool showed us that there was a HUGE number of objects being used just to do a single transformation (as per the XSLT implementation)!! We've thought about the idea of clustering more, smaller sized VM's, but figured that would take a bit more programming to pull off. We had tried running a test case in multiple VM's, but that didn't help too much because the added overhead of the additional VM's killed us (which may be due to how we had tuned the vm settings.) Anyways, back to the drawing board... Robert Robert Schulz [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 04/17/2001 07:22 PM Please respond to jboss-user To:"'[EMAIL PROTECTED]'" [EMAIL PROTECTED] cc: Subject:RE: [JBoss-user] Not so much JBoss, but XSL/XSLT Don't know about XSL but this sounds like a VM garbage collection problem. What seems to happen with large heap sizes is that it keeps allocating without collecting and then gets tangled up when trying to collect ... try clustering over a number of smaller heap size virtual machines. Also, use some profileing tool (optimize it) to see what's happening and whether you are hanging on to no longer needed objects. R. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Wednesday, 18 April 2001 8:29 To: [EMAIL PROTECTED] Subject: [JBoss-user] Not so much JBoss, but XSL/XSLT Sorry to post this here, but I know more eyes will see it. We've looked at a number of different XSL/XSLT Processors and found one that is documented fairly well, runs fast, but apparently doesn't scale very well. For example, at up to loads of about 300 users it performs very well. But, go beyond that, say to 500 users and it just crawls like a dog - running on a 4-CPU (700MHz each) box with 4G ram!! The cpus are running at about 80% capacity and our memory usage is over 1G (for whatever reason, we can't set the heap size any larger than that). So - anyone have any experiences with XSL transformations and scalability?? I'd love to know. Robert ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] How to deploy an external jar in JBoss?
WEB-INF/lib Filip ~Namaste - I bow to the divine in you~Filip HanikSoftware Architect[EMAIL PROTECTED]www.filip.net -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of suyan zhuSent: Monday, April 02, 2001 5:14 PMTo: [EMAIL PROTECTED]Subject: [JBoss-user] How to deploy an external jar in JBoss? I'd like to deploy an external jar file(e.g jdom.jar)used by thewar of an application in JBoss. How should it be specified in deployment descriptor, or Manifest.mf? Thanks, Suyan, Do You Yahoo!?Yahoo! Mail Personal Address - Get email at your own domain with Yahoo! Mail.
RE: [JBoss-user] What is the beta in jboss-tomcat-2.1-beta.zip?
beta means beta. almost all features complete not fully tested/verified to be considered production quality. that is what beta means to most software organizations :) Filip ~Namaste - I bow to the divine in you~Filip HanikSoftware Architect[EMAIL PROTECTED]www.filip.net -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Chunnuan ChenSent: Friday, March 30, 2001 10:40 AMTo: [EMAIL PROTECTED]Subject: [JBoss-user] What is the "beta" in jboss-tomcat-2.1-beta.zip?Hi, When Idownload the binary for . JBoss_tomcat.zip (8.75M) [MAR-26-2001] the file name is jboss-tomcat-2.1-beta.zip. What does the "beta" within the filename mean (seeing this word just makes me feel not so comfortable)? Does it mean the Jboss 2.1 itself is in beta release? If so, why doesn't the download page state that? Thanks, Chunnuan
RE: [JBoss-user] I need ammo. -WL SUX
|So one, BEA screwed up using multicast for messaging large amounts of data |in a cluster. Other products like Gemstone have a much more mature cluster |technology and do not need to message to stay in synch. that is actually pretty smart (mcast sync of ball) we were planning on using that... if they ran into problems likeliness is we will too marc Unless, you have a framework that implements reliable multicasting, like www.javagroups.com, I'm still researching and digging into this technology to see if it would be a fit. As of now, it looks really good, but it is a little bit built to be its own application instead of a component inside of a server application. The statement here, is about thread handling can not be controlled from outside, and when developing an EJB server you have to be able to control most of the threads. Will send you all more feedback once I get really down and dirty with this one. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] JBoss questions...
1) when using BMP how do you return a database connection to the pool when your finished with it? Connection.close(); 2) can JBoss perform distributed transactions with SQL Server? If so, is there any information showing how to do this with BMP? nope, true 2 phase commit is not implemented,. the only server that has it is Weblogic 6.0 3) our current RMI based app executes batch jobs in a thread on the server, and these threads pound SQL Server. Given that EJB doesnt allow new threads to be spawned, how can this be achieved using the EJB model? use JMS to do asynchronous requests 4) does/will JBoss support load balancing between multiple JBoss app servers running concurrently on different win2000 boxes? yes, if it is stateful loadbalancing, it your request gets pinned to a machine when the connection is established. true loadbalancing is underway. 5) is there any published schedule of the planned upcoming releases and what th dunno Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Crothers.Dean Sent: Thursday, March 29, 2001 1:57 PM To: [EMAIL PROTECTED] Subject: [JBoss-user] JBoss questions... Hi, I've looked on the website and thru the archives, but couldnt find answers to the following questions. But first some background, we plan to use JBoss 2.1 on Win2000 with multiple SQL Server databases (potentially on different boxes). 1) when using BMP how do you return a database connection to the pool when your finished with it? 2) can JBoss perform distributed transactions with SQL Server? If so, is there any information showing how to do this with BMP? 3) our current RMI based app executes batch jobs in a thread on the server, and these threads pound SQL Server. Given that EJB doesnt allow new threads to be spawned, how can this be achieved using the EJB model? 4) does/will JBoss support load balancing between multiple JBoss app servers running concurrently on different win2000 boxes? 5) is there any published schedule of the planned upcoming releases and what they will contain? thanks, Dean ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] JBoss questions...
You mentioned that 'true 2 phase commit' is not implemented in JBoss? The logging of the JBoss console at startup outputs: [SQLServerPool] Starting [SQLServerPool] XA Connection pool SQLServerPool bound to java:/SQLServerPool [SQLServerPool] Started Well. that is the jdbc driver that implements the XA protocol. This means that if the server was able to handle distributed transactions, the underlying driver will support that. so for a distributed transaction to work across multiple database servers to work it requires a) the driver to handle two phase commits and b) the server to implement the logic for the distributed transactions. now, if I remember correctly, jboss doesn't seem to have support for distributed transactions, but hey, I could be full of shit, so if I am please correct me :) Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] JBoss user archive search doesn't work
are you running Win95 or Win98? you have to set the environment space for your dos prompt /e:4096 or something like that? Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Pifen Ellwood Sent: Thursday, March 22, 2001 8:37 AM To: [EMAIL PROTECTED] Subject: [JBoss-user] JBoss user archive search doesn't work Hi, Can anyone provide a link to search the jboss-user archive? I got an error msg everytime I tried to search via http://www.geocrawler.com/lists/3/SourceForge I got Out of Environment Space error when I run Jboss. I know some one ask the same question before. However, I can't search the archive so I'm sorry to ask again here. Thanks Pifen Ellwood ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user ___ JBoss-user mailing list [EMAIL PROTECTED] http://lists.sourceforge.net/lists/listinfo/jboss-user
RE: [JBoss-user] A little BMP philosophy/understanding
you should close the statements and connections. the code for using a connection pool should be the same as if you were not using a connection pool. ie transparent. when using a connection pool the con.close() call is an indicator for the pool that you are done with the connection and it is now available to other threads. If not, should I open a connection in ejbCreate/ejbPostCreate/ejbActivate and close it in ejbRemove/ejbPassivate? Will it speed up the things? this way you are going to run out of connections really fast and your system will not scale. because eventually the pool will be empty. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Alexander Kogan Sent: Thursday, March 22, 2001 1:23 PM To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] A little BMP philosophy/understanding Hello, I've been trying to follow this interesting discussion, but now I'm lost. Let me explain my confusion: Usually in my BMP business methods I obtain a connection, create prepared statements and close statements and the connection at the very end of the method (assuming that jboss is caching the connection and statements). Is that the right pattern? Thanks in advance for any advice. Alex. Mike Jau wrote: So, the caching of the PreparedStatement is stored in the database connection context and is not shared between the database connection. I am thinking a work around way and it may solve the caching issue. If we have the "named connection" from the pool with the lifecyclye control to release the PreparedStatement from the applicaiton which invoke the container specific API, it probably can solve the problem. - Mike Jau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 1:25 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] A little BMP philosophy/understanding In the original JBoss 2.0 version the PreparedStatement cache was not discarded after the connection was returned to the pool because more than likely you might want to issue that one of these PreparedStatements again. To make matters worse there wasn't an upper limit on the number of PreparedStatement objects in the cache so things would continue to grow as you prepared new SQL statements. If you happened to prepare the same exact SQL statement then you received the previously cached PreparedStatement object but otherwise you got a new PreparedStatement that was also added to the cache. This would continue until either a) the database complained or b) you ran out of memory which ever came first. On Oracle, for example, each PreparedStatement takes memory on the database and once you hit 100 or so the database throws an exception when you try to get another one. I patched the code by releasing the PreparedStatement cache when the Connection was released and submitted that fix but I'm not sure it was accepted. What really needs to happen is that the PreparedStatement cache needs to be enhanced so that an upper bound can be established via a configuration variable so that after x PreparedStatements have been cached new PreparedStatements will push one of the old ones out of the cache. - Jon Harvie Mike Jau [EMAIL PROTECTED] Sent by:To: [EMAIL PROTECTED] "'[EMAIL PROTECTED]'" [EMAIL PROTECTED] 03/22/2001 12:42 PM cc: Please respond to jboss-userSubject: RE: [JBoss-user] A little BMP philosophy/understanding Could you give me some background information about the Preparedstaement caching on the EJB container side? Since the connection get from pool need to return to pool once the transaction done. I assumed that the resouce associate to this connection should be released and the released resoure include the preparedstatement. Later on, the create preparedstatement will be invoked again from different connection. How the preparedstatement cached is my question? - Mike -Original Message- From: Bill Burke [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 12:10 PM To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] A little BMP philosophy/understanding Dan Christopherson wrote: On Fri, 23 Mar 2001, Peter Routtier-Wone wrote: Someone from this discu
RE: [JBoss-user] A little BMP philosophy/understanding
Doesn't this defeat the purpose of caching and prepared statements? If you close the prepared statement then the db connection goes away right? So why used a prepared statmenet at all, beacuse it is never really prepared? It seems to me the cache would need to keep at least one of each prepared statement used to be of any value. no, you should not cache statements. If you are using prepared statements, it is on the level of the driver to make sure that they are cached. a prepared statement should give you the same performance even if you close them in your code, since it is handled by the driver, not by the programmer, or by jboss. caching statements goes back to 1997 when the drivers did not do this for you. now a days, almost all of them do. Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Hansen, Richard Sent: Thursday, March 22, 2001 1:53 PM To: '[EMAIL PROTECTED]' Subject: RE: [JBoss-user] A little BMP philosophy/understanding Rick Hansen -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 1:25 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] A little BMP philosophy/understanding In the original JBoss 2.0 version the PreparedStatement cache was not discarded after the connection was returned to the pool because more than likely you might want to issue that one of these PreparedStatements again. To make matters worse there wasn't an upper limit on the number of PreparedStatement objects in the cache so things would continue to grow as you prepared new SQL statements. If you happened to prepare the same exact SQL statement then you received the previously cached PreparedStatement object but otherwise you got a new PreparedStatement that was also added to the cache. This would continue until either a) the database complained or b) you ran out of memory which ever came first. On Oracle, for example, each PreparedStatement takes memory on the database and once you hit 100 or so the database throws an exception when you try to get another one. I patched the code by releasing the PreparedStatement cache when the Connection was released and submitted that fix but I'm not sure it was accepted. What really needs to happen is that the PreparedStatement cache needs to be enhanced so that an upper bound can be established via a configuration variable so that after x PreparedStatements have been cached new PreparedStatements will push one of the old ones out of the cache. - Jon Harvie Mike Jau [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 03/22/2001 12:42 PM Please respond to jboss-user To:"'[EMAIL PROTECTED]'" [EMAIL PROTECTED] cc: Subject:RE: [JBoss-user] A little BMP philosophy/understanding Could you give me some background information about the Preparedstaement caching on the EJB container side? Since the connection get from pool need to return to pool once the transaction done. I assumed that the resouce associate to this connection should be released and the released resoure include the preparedstatement. Later on, the create preparedstatement will be invoked again from different connection. How the preparedstatement cached is my question? - Mike -Original Message- From: Bill Burke [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 12:10 PM To: [EMAIL PROTECTED] Subject: Re: [JBoss-user] A little BMP philosophy/understanding Dan Christopherson wrote: On Fri, 23 Mar 2001, Peter Routtier-Wone wrote: Someone from this discussion group indicate that container might cache the PreparedStatement. I can't speak with authority on this, but that rings true. I'm guessing that interception doesn't happen for the setEntityContext() method and therefore you actually create a PreparedStatement rather than receiving one from the pool. Just for kicks, I gave it a try but transactions weren't completed and they'd just hang out there forever, blocking every other persistence and finder method until they timed out. That would bollox lifecycle management, and the described behaviour wouldn't be at all surprising. This is also a common bean bug: 'close()' should be called on every resultset, statement, and connection in a finally clause so that you know it happens every time. On the other hand, I'd have thought that PreparedStatements would be far less costly to manufacture than Connections, and therefore not worth the overhead of managing a pool. I think I'll poke my nose into the source and see what's there. There's often communication with the database to create the PreparedStatement. That way it can pre-compile a query plan. There is a prepared statement cache in JBoss: in JBoss 2.0, it cause
RE: [JBoss-dev] Re: [JBoss-user] A little BMP philosophy/understanding
oops, we are cross posting, no good, sorry about that. I'm re-writing the PreparedStatement cache - so that it is configurable from jboss.jcml. I can no way right now other than changing the source directly of configuring the PS cache size. - so that connections watch all open cursors that are created(Statements and PreparedStatements). Basically if you have 50 PreparedStatements cached, your max open cursors is 50, and you want to createStatement, I'm making the connection release one of the cached PreparedStatement so that the new createStatement won't fail. remember that during a transaction, the connection (JDBC 1) used gets associated with the transaction context. hence, other transactions/threads will not be accessing the connection during that time since they are not involved in this DB transaction. why would you want to keep the cursors open. once you retrieved your resultset, your are done with the cursor and should close it. the prepared statement is nothing but precompiled (during runtime) SQL, and if the connection should keep this precompiled statement alive on the database, not through the PreparedStatement reference that the programmer holds in his code. can somebody please tell *ME* to shut up, if I am completely off balance here :) Filip ~ Namaste - I bow to the divine in you ~ Filip Hanik Software Architect [EMAIL PROTECTED] www.filip.net -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Bill Burke Sent: Thursday, March 22, 2001 2:57 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: [JBoss-dev] Re: [JBoss-user] A little BMP philosophy/understanding In JBoss 2.1 (minerva beta3?) the PreparedStatement cache does have a limit. Also, when the cache reaches it's limit, it removes the least recently used PS and closes it. - Is it useful to block if the max open cursors have been reached when creating a new Statement or PreparedStatement? This would only be useful if more the one thread had access to the connection, but does that ever happen, and is it allowed to happen? Bill Mike Jau wrote: So, the caching of the PreparedStatement is stored in the database connection context and is not shared between the database connection. I am thinking a work around way and it may solve the caching issue. If we have the "named connection" from the pool with the lifecyclye control to release the PreparedStatement from the applicaiton which invoke the container specific API, it probably can solve the problem. - Mike Jau -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 22, 2001 1:25 PM To: [EMAIL PROTECTED] Subject: RE: [JBoss-user] A little BMP philosophy/understanding In the original JBoss 2.0 version the PreparedStatement cache was not discarded after the connection was returned to the pool because more than likely you might want to issue that one of these PreparedStatements again. To make matters worse there wasn't an upper limit on the number of PreparedStatement objects in the cache so things would continue to grow as you prepared new SQL statements. If you happened to prepare the same exact SQL statement then you received the previously cached PreparedStatement object but otherwise you got a new PreparedStatement that was also added to the cache. This would continue until either a) the database complained or b) you ran out of memory which ever came first. On Oracle, for example, each PreparedStatement takes memory on the database and once you hit 100 or so the database throws an exception when you try to get another one. I patched the code by releasing the PreparedStatement cache when the Connection was released and submitted that fix but I'm not sure it was accepted. What really needs to happen is that the PreparedStatement cache needs to be enhanced so that an upper bound can be established via a configuration variable so that after x PreparedStatements have been cached new PreparedStatements will push one of the old ones out of the cache. - Jon Harvie Mike Jau [EMAIL PROTECTED] Sent by: [EMAIL PROTECTED] 03/22/2001 12:42 PM Please respond to jboss-user To:"'[EMAIL PROTECTED]'" [EMAIL PROTECTED] cc: Subject:RE: [JBoss-user] A little BMP philosophy/understanding Could you give me some background information about the Preparedstaement caching on the EJB container side? Since the connection get from pool need to return to pool once the transaction done. I assumed that the resouce associate to this connection should be released and the released resoure include the preparedst
