webdav
hi! i just wondered if there are any plans in supporting the WebDav protocol - or would you recommend using apache as frontend and orion as backend in that case? thanks joe peer ___ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html
OFF TOPIC: Jdbc Driver for MS SQL server?
Hi everybody! sorry for this off topic message, but i know that this list is used by some very experiences J2EE devs and so i couldn't resist to ask a question: my problem is that i am forced to use ms sql server for a project and now I am looking for a good driver available for MS SQL Server 7 by "good" I mean: - good performance - good stability (no or little bugs) - good api compliance (jdbc 2.0+ preferred) I am currently evaluating i-net SPRINTA(tm) 2000 Driver Version 3.04 but before i pay the $999 i would like to hear some comments from people (maybe some people use other drivers they could recommend) any hint would be highly appreciated! thanks, joe peer ___ Tired of slow Internet? Get @Home Broadband Internet http://www.home.com/xinbox/signup.html
Re: load testing tools/procedures
hi, a couple of months ago i downloaded Microsoft's "web application stress tool" from their homepage (dont know the excact url anyomore) and it looked good [but i did not use it for serious testing until know] bye joe - Original Message - From: Robert Krueger [EMAIL PROTECTED] To: Orion-Interest [EMAIL PROTECTED] Sent: Saturday, October 28, 2000 11:25 AM Subject: load testing tools/procedures hi, what are people out there using for load testing when they've finished a web-application? the (affordable) solutions I can think of is JMeter (java.apache.org) or simulating user sessions by coding tests with a package like HttpUnit. I'm particularly interested in testing applications which use sessions and need the simulation of real users (i.e. log in - view catalog - modify shopping basket - submit order - logout kind of stuff). any thoughts on this, anyone? regards, robert (-) Robert Krüger (-) SIGNAL 7 Gesellschaft für Informationstechnologie mbH (-) Brüder-Knauß-Str. 79 - 64285 Darmstadt, (-) Tel: 06151 665401, Fax: 06151 665373 (-) [EMAIL PROTECTED], www.signal7.de
Re: Tieing http session to db connection in orion?!?
hi ! to put some oil into the fire: i got the idea of putting a db connection into the session from the book "Designing Enterprise Applications with the Java 2 Platform, Enterprise Edition" written by the Sun Enterprise Team (Rahul Sharma was the author of the specific chapfter) on page 156, in chapter 6.8 "Guidlines for Connection Management" rahul wrote: "A JSP page or servlet acquires and holds on to a JDBC connection in relation to the life cycle of its HTTP session. It can handle multiple HTTP requests across a single HTTP session from Web clients using the same JDBC connection" He did not mention any backdraws of that method. but one argument brought by some people in this list remains unbeaten: a user session usually lasts 30 min. within this time it is not unusual for a mid-sized Web-Site that several hundred people come to that page, which leads to several hundret concurrent db connections. my opinion is, that unless you find a way to seach and destroy the inactive connections, and unless you have an extreme strong and forgiving database you may get a problem (for example if db hangs because of too much connections, or license problems and so on) [not to mention the second argument with the non-serializability of db connections and the problems with server clusters] any comments? any explainations? joe keith kwiatek wrote: * some people say, it's best practice to put 1 connection into 1 user's http session and use it for all requests of that user This only works if you don't have a lot of users concurrently, say a small intranet application, that doesn't care scalibility. The reason is database connection can't be serialized for sure and connection in http session can't be replicated across your web server farm. Hence each user in a session requires to use the same machine in your web farm. This could be terrible if you intend to serve thousands of users concurrently. Secondly database licensing is an issue. Some database vendors charge you by concurrent opened connection. If your site has a thousand users concurrently, you will need to purchase a thousand licenses (That is the thing scares me most). Agreed with replier..you would NEVER want to do this. If you are not careful you can lose the connections which will ultimately crash the database and/or the web server. VERY bad design. Hello, With regards to the discussion above, and the "tieing of an http session to a single (or multiple) database connections", a lot of people downed this idea, BUT... I actually consider the "one http/db connection" to be a good way for small/medium intranet type applications to use the "transaction managment" of the database (ie oracle's "select for update", two phase commit). OTHERWISE, HOW would you handle the transaction management ?! If you use database connection pooling in an http sessionless environment, how do you handle the dirty read/write situation? What do you do if an http request fetches data for "update", but by the time the update is accomplished, the data has already changed (please don't tell me you you've coded a "check timestamp" for database rows!)? Or does everyone use optimistic locking? OR is this where the powers of EJB state + transaction managment comes in? Thanks, Keith ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
webapp design: how to handle connection pooling
hi everybody, i have a design question: how should i manage (pooled) database connections in my web app? i found different hints from different sources... * some people say, it's best practice to put 1 connection into 1 user's http session and use it for all requests of that user * other people say it's best practice to use a connection for every request. (and if more than one methods are involved, the connection should be given as a method parameter) * again other people argue that they don't care at all about reusing connection, they just open and close them when they need/want to who is right? or, how do you handle it? thanks a lot! joe peer -- mailto:[EMAIL PROTECTED] ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
class/servlet reloading
hi! i am not using ear/war/-files right now, but i am deploying my applications by putting my packages and classes into the \web-inf\classes directory my question is: is there a possibility to force the container to reload these classes without shutting down (= user sessions should surivive, nearly no denial of service time) could you help me with this? thanks! joe ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
Problem with restarting orion: Me too
Hi! I have got _exactly_ the same problem. my config: * win nt 4.0 service pack 5 * sun jdk 1.3 On the mailing list archive I read that various problems witch admin.jar are platform specific - is that true? will there be a fix of that problem? or ist there already a workaround? thanks, joe peer [EMAIL PROTECTED] -Ursprüngliche Nachricht- Von: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]Im Auftrag von Ratz, Peter Gesendet: Dienstag, 25. Juli 2000 08:33 An: Orion-Interest Betreff: Problem with restarting orion Hello, im am new to orion server an i cannot restart/shutdown the server. I type in the following command and get an exception: C:\orionjava -jar admin.jar ormi://localhost admin 123 -restart Error: com.evermind.reflect.UndeclaredExceptionTypeException: java.lang.ClassNotFoundException Thanks Peter ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
orion as a nt service
hi everybody, simple problem: how can i make sure under win nt that orionserver will restart after a system-reboot? - i think, the normal solution would be installing orionserver as a nt service please could you give me some hints how to do _that_? thanks! joe peer [EMAIL PROTECTED] ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
cgi problems in version 1.0.3?
hi orion server team developers, i have downloaded the version 1.0.3 today but suddenly the GGI-Wrapper-Servlet delivers the following exception: java.lang.NullPointerException at com.evermind.server.http.EvermindHttpServletRequest.getRemoteUser(EvermindHttpServletRequest.java:1789) at com.evermind.server.http.CGIServlet.service(JAX) at javax.servlet.http.HttpServlet.service(HttpServlet.java) at com.evermind.server.http.df.o3(JAX) at com.evermind.server.http.df.forward(JAX) at com.evermind.server.http.dm.o9(JAX) at com.evermind.server.http.dm.o8(JAX) at com.evermind.util.e.run(JAX) the only file i changed was orion.jar (upgraded from 1.0 to 1.0.3) [i did not change other files, because their last-edit date did not seem to differ from 1.0] this error happens to the /demo/perl/post.pl as well as to my own perl scripts. the PATH environment varible is set to the bin-directory of the perl interpreter (i tried to set it to the perl.exe directly, but that did not help) when i replaced the orion.jar file with the 1.0 version, everthing worked fine, again...? any suggestions? thanks, joe peer [EMAIL PROTECTED] ___ Say Bye to Slow Internet! http://www.home.com/xinbox/signup.html
