Re: ClassCastException while doing REMOTE ejb lookup
I am working on it and will fix it in the next day or 2. Cheers, Ashok Theo van Niekerk wrote: Hi I'm doing a REMOTE (not local, not same JVM, not same Orion) lookup from a servlet running in Orion152 application to an ejb deployed in Orion152 application on a remote and different physical machine. I can establish the correct Initial Context and locate the required object. But this object is loaded in the servlet using a ClassLoader that is different from the default ClassLoader of the servlet. The result is a ClassCastException when doing a narrow using this object and the class as loaded by the default ClassLoader. The narrow works fine when the object's ClassLoader is used to locate the class to be used for the narrow. However, it seems that this ClassLoader is then retrieving classes from the remote machine. Obviously I need the classes also on the web machine accesible by the default ClassLoader so that classes that depend on these remote classes can load and JSP's can compile. Any ideas will be greatly appreciated. Please reply at least to my email. -- Regards Theo van Niekerk Generation 5 tel: +27 21 883 88 58 mob: +27 82 44 81 222 Part 1.2Type: application/pgp-signature
Re: Looking up an ejb from another ejb
Only way is to use RMIInitialContextFactory not ApplicationClientInitialContextFactory - this wont use java:comp environment but you can use absolute names. Cheers, Ashok Trujillo, Kris wrote: Does anyone know if it is possible for an EJB in one ear file to lookup an EJB in another ear file WITHOUT having to set the parent attribute on the application in the server.xml? What if EJBs in both ear files needed to perform bi-directional calls on each other? Who would be the parent in that case??
RMI clustering
I am trying RMI clustering and have done as Lachezar advised but I am not sure where the client is supposed to connect. There is no frontend like loadbalancer for http clustering. I can tell that state information sharing or entity-cache flush command are being multicast. But where does the application client connect? Any help/sample would be great.
Re: Help with exception, could be classpath related
Are the 2 beans in the different applications (ear files)? If so you may want to specify one application as the parent of the other. Cheers, Ashok [EMAIL PROTECTED] wrote: Hello All, hope you can help me with this as I'm unsure exactly what it means, I use a session bean to invoke methods on an entity bean, the error seems to be in the Entity Bean but it has been tested from a client and it works, I think it may be due to the classpath, as I've had to put the classes into the server.xml as Library path=...file before I could see them from ejbs. any ideas are very welcome, Thanks, Albert. Here is the exception I get from the terminal I start Orion server from: java.lang.ClassCastException: __Proxy0 at SimpleEntityBean.Submit(SimpleEntityBean.java:230) at SimpleEntity_EntityBeanWrapper0.Submit(SimpleEntity_EntityBeanWrapper0.java:268) at java.lang.reflect.Method.invoke(Native Method) at com.evermind._dh._gc(Unknown Source) at com.evermind._if.run(Unknown Source) Email just got more fun @ another.com http://another.com
Re: Datasource Question - is there a way to setup a JDBC log file?
Start OC4J with -Djdbc.debug=true this turns on Orion JDBC debug information. Cheers, Ashok Bill Clinton wrote: Hello, I am curious on how to set up logging for JDBC. I thought there would be a parameter in the data-source definition that would allow logging. Does this exist? Bill btw: I am using oracle
Re: Help With JNDI properties
You need an application-client.xml file as in $ORION_HOME/demo/ejb/product/META-INF/application-client.xml. Cheers, Ash [EMAIL PROTECTED] wrote: Hi All. Is there anything wrong with this set of properties I'm trying to use with Orion? (the username and password is correct! Properties p = new Properties(); // ... Specify the JNDI properties specific to the vendor. p.setProperty(java.naming.factory.initial,com.evermind.server.ApplicationClientInitialContextFactory); p.setProperty(java.naming.provider.url,ormi://localhost); p.setProperty(java.naming.security.principal,username); p.setProperty(java.naming.security.credentials,password); This compiles fine but when run gives the error: javax.naming.NamingException: META-INF/application-client.xml resource not found (see J2EE spec, application-client chapter for requirements and format of the file) at com.evermind.server.ApplicationClientInitialContextFactory.getInitialContext(Unknown Source) at javax.naming.spi.NamingManager.getInitialContext(NamingManager.java:665) at javax.naming.InitialContext.getDefaultInitCtx(InitialContext.java:246) at javax.naming.InitialContext.init(InitialContext.java:222) at javax.naming.InitialContext.init(InitialContext.java:198) at Client_1.getInitialContext(Client_1.java:35) at Client_1.main(Client_1.java:13) I can't find this application-client.xml file anywhere in the primer example or the other examples. Thanks, Albert. - Be passionate about your email Just click here: http://another.com
ANYONE got CLUSTERING working on 148
Did anyone get clustering working on Orion 148? The http-clustering doc at orionserver worked for 145 but not for 148. On 148 the individual nodes detect each other (I see from doing jms.debug) however the loadbalancer detects none of the nodes. Though each node mentions its own frontend. If anyone has got it working please let me know how. Thanks Ashok _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Cluster in 148:not in multicast
Has anything in clustering changed in Orion148 from Orion145. The instructions at http://www.orionserver.com/docs/http-clustering.html dont work for 148 (works for 145) It seems that the multicasting using MulticastTopicConnection is having issues. The server comes back with not in multicast. OrionServer is trying to join at localhost:9128 (JMS port) when it needs a multicast port. How do I make sure it goes to the right port? I have explicitly coded in the host,port in cluster-config. Now the exceptions are gone but it still doesnt work. Is there something else to configure? Cheers, Ash _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Resending:Orion148 Clustering fails
Is anyone able to get Orion148 clustering to work. With Orion145 it was a piece of cake. However for 148 the loadbalancer doesnt seem to detect the new servers at all. If I turn on jms.debug I can see that the individual nodes do get JMS messages but the loadbalancer gets no message at all. If anyone has gotten it to work please let me know how? Cheers, Ashok _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Clustering and Load Balancing
My understanding: Orion loadbalances if selectionType is set to random. If there are multiple islands capable of serving up the same site - then a random selection is done to pick the island. Within the island a server is selected at random. Question: 1) When would you distribute the same application across islands? Load Balancing happens even across islands. 2) Does Orion multicast the state? If so - it is a security concern anyone can sniff up the packets. 3) How can a loadbalancer allow some and disallow other orionserver instances in the same subnet from joining its islands? 4) By default Orion loadbalancing statically binds a session to a server - if 1 client session makes lots of requests is there a way to distribute these requests across servers? Cheers, As _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Error starting HTTP server
On NT Orion is running great but on Solaris JDK1.2.2 when I do java -jar orion.jar I get an error message flagging a problem with HTTP initialization. How do I debug/trouble shoot this. Are there any debug flags? Cheers, Ash % java -jar orion.jar Error starting HTTP-Server: Permission denied Orion/1.4.5 initialized _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Orion CMP
Where does Orion store its CMP data? I know it uses HSQL and I believe HSQL - where are the HSQL datafiles physically located? If I change in data-source.xml does that mean my CMP data is also now going to go to a different database? I modified data-sources.xml as below and yet I keep getting D:\Orion\orion\demo\ejb\productjava -classpath .;..\..\..\orion.jar;..\..\..\ej b.jar;..\..\..\jndi.jar ProductClient Communication error: Error reading application-client descriptor: Error looking up EJBHome: Lookup error: java.net.ConnectException: Connection refused: no furt her information; nested exception is: java.net.ConnectException: Connection refused: no further information Any further information on configuring orion to use Oracle DB as persistent store would help. Cheers, Ash ?xml version="1.0"? !DOCTYPE data-sources PUBLIC "Orion data-sources" "http://www.orionserver.com/dtds/data-sources.dtd" data-sources !-- An example/default DataSource that uses an ordinary JDBC-driver (in this case hsql) to create the connections. This tag creates all the needed kinds of data-sources, transactional, pooled and EJB-aware sources. The source generally used in application code is the "EJB" one - it provides transactional safety and connection pooling. -- !-- data-source class="com.evermind.sql.DriverManagerDataSource" name="Hypersonic" location="jdbc/HypersonicCoreDS" xa-location="jdbc/xa/HypersonicXADS" ejb-location="jdbc/HypersonicDS" connection-driver="org.hsql.jdbcDriver" username="sa" password="" url="jdbc:HypersonicSQL:./database/defaultdb" inactivity-timeout="30" /-- data-source class="com.evermind.sql.DriverManagerDataSource" name="Oracle" location="jdbc/OracleCoreDS" xa-location="jdbc/xa/OracleXADS" ejb-location="jdbc/OracleDS" connection-driver="oracle.jdbc.driver.OracleDriver" username="orion" password="orion" url="jdbc:oracle:thin:@mysun-box:1521:mydb" inactivity-timeout="30" / /data-sources
CMP default datasource
I could change the cmt datasource (from HyperSonic to mySql) by changing in the application-deployments directory (thanks to pointer from UnicMan). But does anyone know what one can do in ones own ejbs to have the CMP bean persisted to mySql by default. Cheers, Ash _ Get your FREE download of MSN Explorer at http://explorer.msn.com
Re: Help me please domain was nul message is killing me here...
orion/config/default-web-site.xml should do it. If it doesnt work please send a bit more info. on the problem like when you get the problem if you have a small sample app just zip it up. Cheers, Ash Alex Paransky wrote: Does anyone know what the "domain was null" message means? How do I get rid of it. Where do I specify a domain? HEELP, someone please. I have been posting this question for the last 3 weeks, and still I have no answers. Please, please please, help. -AP_ PS: Is this what it takes to get a question answered? Is there a different forum for paying customers? If I pay $1500, will I get my questions answered faster?
Re: ejb-jar file location
Put the ear file path or directory path in orion/config/server.xml. This will enable orion to find your server class. Now for the client to find it use application.xml and orion-application.xml. These files are under META-INF just below client root directory. If orion server is in a remote box modify jndi.properties accordingly. Cheers, Ash Frank LaRosa wrote: Hi, I'm just getting started with Orion, but I have experience with Weblogic server. I created a simple EJB jar file which I'd like to deploy on Orion and access via an external client. I'm stuck trying to figure out where I need to place my jar file in the server's directory structure and which, if any, of the configuration files I need to update to let Orion know it's there. I tried a variety of locations, but all I am able to get is a JNDI not-found error when I try to look up the home interface. I am not even sure where I specify the JNDI name? In Weblogic this is done through a weblogic-specific deployment file. Thanks.
