It depends what edition of Websphere you are talking about. None of the
editions are WebServers in themselves although they all come with the IBM
HTTP Server.
The standard edition is just a servlet runner and also supports JSP.
The advanced edition is a servlet runner and also supports the EJB
specification.
You should look at http://www.software.ibm.com/webservers/appserv/ to find
out more about the various editions.
So in terms of your question of if the Webserver crashes then it will crash
the appserver is not neccesarily true. The Servlet Service will probably
keep on operating, but the problem that you will have is that servlets are
usually accessed via an HTML page so you wont be able to access them. If you
use Apache as your webserver the chances that Apache crashes before
Websphere does is in my opinion very small.
If you are looking for something that truly has high availability and is
absolutely mission critical, then you are probably going to want to consider
replicating your application over 2 or more machines and using IBM
Performance Pack to load balance and take care of server failure.
Hope this helps.
Eytan
> -----Original Message-----
> From: A mailing list for discussion about Sun Microsystem's Java Servlet
> API Technology. [mailto:[EMAIL PROTECTED]]On Behalf Of
> George Svedloff
> Sent: Saturday, August 14, 1999 6:19 PM
> To: [EMAIL PROTECTED]
> Subject: Question about IBM Web Sphere
>
>
> I am considering using IBM Web Sphere for a Web application. I have a
> question - what exactly is it:
>
> a) A Web Server with Servlet support?
> b) An EJB server
> c) Both
>
> If the answer is (c), as I suspect, do the Web Server/Servler Runner and
> the EJB Server run in the same process? If yes, how does it solve the
> high-availability issue - if the Web server crashes, for example, it will
> also crash the App Server.
>
> Thanks,
>
> George Svedloff
>
> __________________________________________________________________
> _________
> To unsubscribe, send email to [EMAIL PROTECTED] and include
> in the body
> of the message "signoff SERVLET-INTEREST".
>
> Archives: http://archives.java.sun.com/archives/servlet-interest.html
> Resources: http://java.sun.com/products/servlet/external-resources.html
> LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
>
___________________________________________________________________________
To unsubscribe, send email to [EMAIL PROTECTED] and include in the body
of the message "signoff SERVLET-INTEREST".
Archives: http://archives.java.sun.com/archives/servlet-interest.html
Resources: http://java.sun.com/products/servlet/external-resources.html
LISTSERV Help: http://www.lsoft.com/manuals/user/user.html
