RE: Orion Performance Tuning
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Robert S. Sfeir Sent: Wednesday, July 25, 2001 8:51 PM To: Orion-Interest Subject: Orion Performance Tuning Hello all, I've gone through and read most of the information posted from this list about improving the performance of Orion, and increasing the number of threads Orion uses to improve its overall performance under load. What I've been able to do so far, and it's helped a lot, is: 1- Added the -Xms and -Xmx switches to make sure Orion starts and uses more memory, they're set at 100MB and 300MB respectively, and Orion uses 175MB as soon as I start it up, and doesn't seem to grow past 177MB as the day goes one and it gets used. 2- I added the -server switch in front of the java command so we make sure we use the Server version of the HotSpot VM. (Boy does this thing pick up speed when using the -server switch!) Is there anything else that can be done, short of clustering, to further increase Orion's performance? My main objective is to make sure we don't get any more weird hangs and long wait times in Orion for no apparent reason. Perhaps increasing the number of threads Orion uses? I can't seem to find any definite answer on that. Our servlet seems to be fine, but sometimes when clicking through a test web site, one url request seemed to just sit there and hang, as if Orion was dead, but I could click and request a different URL and get immediate response. So I assumed it was threads in Orion which were not being managed properly. After making reading the posts to the list and making the the 2 changes above, the problem seemed to have gone away for the most part, except it still happens from time to time in Netscape, IE doesn't seem to have this problem. I can quit Netscape and go back in and the problem is gone for a while. There is no specific time frame for it to happen. It does happen consistently when I click, then stop for about 30-60 seconds, then click again or reload, and it just sits there and waits for the world to come to an end of something. Very bizarre. Maybe you run the server and the browser on the same computer and usual Netscape is very hungry on processor time, a problem encountered by me very often in a combination of IIS and Netscape; Use Task Manager to see if this is the problem; Any ideas you may have would be of great help. Thanks R Robert S. Sfeir Director of Software Development PERCEPTICON corporation, in Joint Venture With JTransit San Francisco, CA 94123 pw - http://www.percepticon.com/ jw - http://jtransit.com e- [EMAIL PROTECTED]
RE: need help getting started
You don't need to hear, you feel that; -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Randahl Fink Isaksen Sent: Friday, March 02, 2001 11:23 AM To: Orion-Interest Subject: RE: need help getting started my main reason for switching was that orion is much faster than tomcat. Isn't that so? Now, where did you here that ?? Randahl But, you are right, I had the feeling that it was way over kill...I am also looking into resin, I guess that is over kill, too for functionality, but like I said I was looking for speed gains. - Original Message - From: "Randahl Fink Isaksen" [EMAIL PROTECTED] To: "Orion-Interest" [EMAIL PROTECTED] Sent: Thursday, March 01, 2001 2:10 PM Subject: RE: need help getting started I would definately *NOT* recommend moving away from Tomcat if you only use JSP and servlets. Tomcat is the reference implementation, it is free, and unless you need a product with a lot of additional features (GUI helper tools, EJBs, remote debugging, etc.) there is no reason to open up a can of worms. I really like the Orion server but that is for its EJB capabilities. I think the Orion team strives for making it a great EJB server. - The aim is not specifically to make it the best JSP/Servlet platform available, so I would not expect it to be ahead of Tomcat in that sence. Orion is a great product, but also a more complicated product, so if you can use a less complex system and still fulfill your needs, then I sure recommend you do so. However, should you get to the point where you simply don't think using just a relational database and several truck loads of SQL really makes your day, THEN JOIN THE CLUB - that is why many of use Orion Server and Enterprise Java Beans. Yours Sincerely Randahl -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of John de la Garza Sent: 1. marts 2001 19:01 To: Orion-Interest Subject: need help getting started I have been using tomcat for some time now and am having issues with it... I am thinking about using Orion. I don't do any ejb stuff and only need a servlet container and web server. I am having trouble using formbased security. I couldn't get it to work with the users set up in the principals file. When I would go to a protected area I would just get a message saying 'not allowed here' or something like that but I would not get prompted for a pw username. I actually don't want to use the principals file but have the usernames and passwds in a data base. Can anyone here refer me to some documentation on this?
RE: O/R mapping
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Sean P. McNamara Sent: mardi 23 janvier 2001 20:41 To: Orion-Interest Subject: RE: O/R mapping While I agree that the 3-table approach is not necessary to do 1-M mappings, and that there are performance reasons that make the 2-table method attractive, the 3-table method has the benefit that it doesn't allow the fact that the object in the M (many) position to intrude upon it's table structure. While this is perhaps not completely germaine to EJB (I'm not so familiar with the details of the spec,) we have found value in the 3-table approach in general O/R use. I guess this is a good design point; But if the client come and say way this is so slow; I say because it use a join, ..., and this is slower than ... ugly; If you make use of the 3-table method, the table that contains the row-data is then only specific to the OBJECT that is stored in the relationship. For instance, if I have: COMPANY --- EMPLOYEE 1 * in one application, and CLIENT EMPLOYEE 1 * in another application, we are not forced to deal with extraneous columns relating the EMPLOYEE to either a COMPANY or a CLIENT (I realize a better model might be to have company and client both subclasses of EMPLOYER, or some such thing.) This example is perhaps even better if we consider the use of EMPLOYEE alone without it's COMPANY or CLIENT relationship. Using the third table for the mapping keeps the individual component entities well isolated, which can be a good thing. Don't know if that was clear, but we've seen a use for the overhead of the 3rd table. Yes, in your case is clear; but if I don't have this case, I don't care about that; The speed is very important; I love CMP; Is the most useful thing from EJB; I believe a ejb container can do more for CMP; He can have options for example, for this relation 1-m use only 2 tables (how I guess is very clear); or if I do a find, for this find use lazy loading for some cmp-field, don't use ll for another cmp-field; If I do a find with a lot of records returned, get from the database in piece of 30 records ( or something like that); Dumitru Sbenghe writes: SV: O/R mappingI care; If you store a 1-m relation in 3 tables, to get the corresponding data from the third table for a PK from the first table, you must join the second table with the third table; A join is slower than a simple select; If you store a 1-m relation in only two table (the normal way) , you do that with only a simple select. ... Someone else previously ... I'd like to point out that a third table is only needed for a N-M (many-to-many) relationship. In the case of a 1-N relationship, simply have a foreign key to the master table. -- Sean P. McNamara [EMAIL PROTECTED] SOMA Technologies, Inc. [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED]
RE: O/R mapping
Title: SV: O/R mapping I care; If you store a 1-m relation in 3 tables, to get the corresponding data from the third table for aPK from the first table, you must join the second table with the third table; A join is slower than a simple select; If you store a 1-m relation in onlytwo table (the normal way) , you do that with only a simple select. -Original Message-From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Magnus RydinSent: mardi 23 janvier 2001 14:51To: Orion-InterestSubject: SV: O/R mapping One of the things I like best with EJB is that I dont have to care about how my objects are stored (Yes, im a CMP fanatic). So my personal contribution to the subject must be:who cares how many tables are used 'back there' ? :) -Ursprungligt meddelande- Från: Daniel Cardin [mailto:[EMAIL PROTECTED]] Skickat: den 23 januari 2001 05:01 Till: Orion-Interest Ämne: RE: O/R mapping I'd like to point out that a third table is only needed for a N-M (many-to-many) relationship. In the case of a 1-N relationship, simply have a foreign key to the master table. For example : Customer object refers to a Country object you a Customer will only have one Country object. you do NOT need a third table to map this. Simply add a field in Customer that contains the foreign key to the Country object. The EJB 2.0 mapping is Simple Customer ... public abstract Country getCountry(); public abstract void setCountry(Country aCountry); and in Country public abstract Collection getCustomers(); public abstract void setCustomer(Collection customers); This is fully supported by Orion, which will populate the collection object automatically. Cheers, Daniel -Message d'origine- De : Tony J Brooks [mailto:[EMAIL PROTECTED]] Envoyé : 22 janvier, 2001 11:27 À : Orion-Interest Objet : RE: O/R mapping Hi Theis, As much as I can remember, there *is* - definitely - a need for an intermediate third table to contain the mapping information. By using this third table, you eliminate data replication/redundancy in the other two tables. To my knowledge this is a common technique. ER tools typically create such an intermediate table for you when you select a relationship to be 'zero/one/many to many'. Whether you see that on your diagram is another matter, but you will definitely see it in your DB ;) Apologies if I have misunderstood your question. Bye for now, Tony. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: 22 January 2001 15:10 To: Orion-Interest Subject: O/R mapping Hi! I have been reading the complex-or example and ploughed through the atm example. In the complex-or example it is stated that collections are mapped to an another table and that the reason for this is normalization. The Atm example is also following this principle. Is this really correct? I have never seen the necessity for mapping anone to many relation to a third table (even though it was a long time ago I read the rules of normalization I'm very doubtful that this is correct). Could someone tell me the rational behind this. If this not true, how does the xml look like (in the orion-ejb-jar.xml) when you only map the relation as a foreign key? Regards /Theis
RE: Kawa
Yesterday, I download the Kawa 5.0 Entreprise from Allaire site and I didn't find any "out-of-the-box" support for Orion; Only Weblogic, Jrun and J2ee-ri; Perhaps on the web page they talk about a future version !? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Ervin Jakab Sent: vendredi 5 janvier 2001 21:41 To: Orion-Interest Subject: Kawa Maybe some of you are interested to find out that Kawa 5.0 Enterprise from Allaire has out-of-the-box support for Orion deployment. Check this out: http://www.allaire.com/products/kawa/productinformation/enterprise.cfm .
RE: to boldly go where no man has gone before
I home my english is ok; I hope this list is not a list for kids 5 years old -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres Sent: jeudi 14 decembre 2000 16:50 To: Orion-Interest Subject: Re: to boldly go where no man has gone before Take it to alt.rec.etiquette. If you can read the post, and you know the answer, then reply. Otherwise, don't. tim.
RE: to boldly go where no man has gone before
Stop this shit -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Tim Endres Sent: jeudi 14 decembre 2000 16:50 To: Orion-Interest Subject: Re: to boldly go where no man has gone before Take it to alt.rec.etiquette. If you can read the post, and you know the answer, then reply. Otherwise, don't. tim.
RE: Deploying the java pet store?
at www.orionsupport.com -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Robert Nicholson Sent: Friday, October 20, 2000 8:33 AM To: Orion-Interest Subject: Deploying the java pet store? Where can I find the instructions on deploying the new java pet store with Orion 1.3.8? --- Robert Nicholson Email: [EMAIL PROTECTED] AOL : rydmerlin
How to pass parameters to JVM
How to config orion to pass parameters to java.exe. Example from jserv config wrapper.bin.parameters=-mx128m -Dapp.config=c:/windows/etc/app.conf I haven't found this in orion documentation. Thanks
RE: How to pass parameters to JVM
No need for answer. I found it in an old message. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dumitru Sbenghe Sent: Wednesday, October 11, 2000 5:55 PM To: Orion-Interest Subject: How to pass parameters to JVM How to config orion to pass parameters to java.exe. Example from jserv config wrapper.bin.parameters=-mx128m -Dapp.config=c:/windows/etc/app.conf I haven't found this in orion documentation. Thanks
