Re: Working with the class server

Why do you say that? If the writer leaves then the entries written  
will eventually be removed when their leases expire. The writer's  
codebase does not have to be coupled with the writer itself.

HTH

Dennis

On Aug 4, 2008, at 508AM, Guy Korland wrote:

> The problem with codebase, as I wrote before, is that if the Writer  
> leaves/fails then the data in the space can't be read/take by any  
> other user.
>
> Guy
>
> From: Dennis Reedy [mailto:[email protected]]
> Sent: Monday, August 04, 2008 2:46 AM
> To: [email protected]
> Subject: Re: Working with the class server
>
> Perhaps you can check to ensure your writer JVM has defined a  
> codebase that can serve the jars in question. This is most likely  
> the issue you are encountering.
>
> HTH
>
> Dennis
>
>
> On Aug 3, 2008, at 310PM, Guy Korland wrote:
>
>
> Hi Asaf,
>
> In general what you need to do is to set a Codebase server.
> BTW, in Gigaspaces we found out that setting such server is not  
> scalable and in fact many times acts as a single point of failure.
> So, what we developed (which is also available as part of our  
> community free addition) is a dynamic class loader.
>
> Once the space stores an instance of an Entry (or an Entry's field)  
> the class is dynamically stored in the space and seamlessly provided  
> to the "taker" when needed.
>
> GUy
>
> From: Asaf Lahav [mailto:[email protected]]
> Sent: Sunday, August 03, 2008 5:15 PM
> To: [email protected]
> Subject: Working with the class server
>
> I need some clarification on how to employ the class server.
> I have a couple of jvm's. one writing entries and the other taking  
> them.
> The entry class I'm using is very simple:
>
> import net.jini.entry.AbstractEntry;
> public class JavaspaceTaggingEntry extends AbstractEntry{
>                 private static final long serialVersionUID =  
> -1559963129857857100L;
>                 public String myName = null;
> }
>
> The writer jvm, naturally has the entry class definitions in its  
> class path. The taker doesn't.
> I tried putting the entry jar into the lib-dl folder under the jinni  
> started kit and made sure the Class Server server points to it so it  
> would be available through it.
> The problem is that when I attempt to take the entry, I got a class  
> not found exception.
>
> What is the right way to employ the class server?
>
>
>
>
>
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