RE: Please help me improve my question skills (number of tomcata pps)
YES! You've hit it! I AM asking the question about how fast the car will go. At this time, I DON'T care about the type of car or engine! My question is being analyzed far too deeply by the diligent developers on this mail list. The type of responses I was hoping for would have had developers proudly boasting something like: At my company we are successfully running 17 applications in two TC instances or We are running one TC instance with four apps or We have one app. I am not interested in app type or size or anything like that. Based on the information I have seen, I should be forced to conclude that TC is not being used for any real applications, but I KNOW this can not be true - there are far too many intelligent and competent people monitoring the mail list. Unfortunately (for me), no one has yet proclaimed success. I understand that when it comes time to actually implement TC, the questions regarding OS, JVM, type of apps, etc will become VERY important. But I need to try to make some justifications before I can ever get to that point. Thanks all for all your help! -- Jeff -Original Message- From: Adrian [mailto:[EMAIL PROTECTED]] Sent: Monday, June 10, 2002 7:32 PM To: Tomcat Users List Subject: Re: Please help me improve my question skills (number of tomcat apps) Your question cannot be answered without specifying criteria. 1) OS type 2) JVM type 3) Type and Complexity of Application 4) Are you using connectors 5) Are you connecting to databases Your current question is like asking how fast and how far will a car go. I don`t care what kind of car, or engine. Adrian - Original Message - From: Knutsen Jeffrey S [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, June 10, 2002 9:48 AM Subject: Please help me improve my question skills (number of tomcat apps) I have submitted the following question and received no response. I know this isn't a technical problem, but I was hoping for responses from real developers. I thought it was a simple question, and have always received excellent and quick responses from the tomcat mail list in the past, so the problem must be with me or the way I am asking. Can someone please help me improve myself? Is this a stupid question? Have I perhaps asked it incorrectly? I am open and receptive to any constructive criticism available (I can take it, but maybe you could send a direct response if you want to be extremely brutal?!) All I really want to know is how many applications real developers are putting on one machine in the real world. I am just looking for an abstract number, and I am not worried about system configurations at this time. Thanks! ORIGINAL QUESTION: I am doing some Tomcat cost/benefit projections for my company. I need to determine the maximum number of applications that will run on Tomcat and still provide stable performance. I am not interested in a theoretical number at this time, just seeking information about what real developers are actually doing with real applications. At this time, I am not interested in what machine types, OSs, configurations, versions, are being used. I understand the answer to my questions will depend heavily on these issues as well as on the applications themselves. I just need to come up with a realistic number of instances/apps which are being run on a single machine by real users. I am seeking an answer to the following two questions: Number of Tomcat instances I am running on one machine: Number of individual applications I am running in all instances of Tomcat on one machine: Please feel free to respond to the mail list, or to me directly at [EMAIL PROTECTED] (if we don't want to clog the list with answers to this question). I will post a final resolution message to the mail list when I have come to some sort of conclusion. Thanks in advance for your help! -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Please help me improve my question skills (number of tomcatapps)
I have submitted the following question and received no response. I know this isn't a technical problem, but I was hoping for responses from real developers. I thought it was a simple question, and have always received excellent and quick responses from the tomcat mail list in the past, so the problem must be with me or the way I am asking. Can someone please help me improve myself? Is this a stupid question? Have I perhaps asked it incorrectly? I am open and receptive to any constructive criticism available (I can take it, but maybe you could send a direct response if you want to be extremely brutal?!) All I really want to know is how many applications real developers are putting on one machine in the real world. I am just looking for an abstract number, and I am not worried about system configurations at this time. Thanks! ORIGINAL QUESTION: I am doing some Tomcat cost/benefit projections for my company. I need to determine the maximum number of applications that will run on Tomcat and still provide stable performance. I am not interested in a theoretical number at this time, just seeking information about what real developers are actually doing with real applications. At this time, I am not interested in what machine types, OSs, configurations, versions, are being used. I understand the answer to my questions will depend heavily on these issues as well as on the applications themselves. I just need to come up with a realistic number of instances/apps which are being run on a single machine by real users. I am seeking an answer to the following two questions: Number of Tomcat instances I am running on one machine: Number of individual applications I am running in all instances of Tomcat on one machine: Please feel free to respond to the mail list, or to me directly at [EMAIL PROTECTED] (if we don't want to clog the list with answers to this question). I will post a final resolution message to the mail list when I have come to some sort of conclusion. Thanks in advance for your help! -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
RE: Please help me improve my question skills (number of tomcata pps)
Thanks very much for the help. I do understand that there are many variables that will affect the answer to this question. At this time, all I am really after is what is the best that anyone has done, in any configuration. I am interested in real-world successes. Thanks again! -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Monday, June 10, 2002 10:33 AM To: Tomcat Users List Subject: Re: Please help me improve my question skills (number of tomcat apps) On Mon, 10 Jun 2002, Knutsen Jeffrey S wrote: Date: Mon, 10 Jun 2002 08:48:39 -0500 From: Knutsen Jeffrey S [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Subject: Please help me improve my question skills (number of tomcat apps) I have submitted the following question and received no response. I know this isn't a technical problem, but I was hoping for responses from real developers. I thought it was a simple question, and have always received excellent and quick responses from the tomcat mail list in the past, so the problem must be with me or the way I am asking. Can someone please help me improve myself? Is this a stupid question? Have I perhaps asked it incorrectly? I am open and receptive to any constructive criticism available (I can take it, but maybe you could send a direct response if you want to be extremely brutal?!) All I really want to know is how many applications real developers are putting on one machine in the real world. I am just looking for an abstract number, and I am not worried about system configurations at this time. The problem is that there is no generally useful answer to your question as stated. It depends even more on the nature of the applications you are talking about (when the answer might even be zero for a particular server configuration) as the size of the server (an answer based on a 64-CPU mega-server with 4 gigabytes of main memory isn't going to help you on a small single-CPU Linux box with 64 megs). There are no architectural limits on the number of webapps a single Tomcat instance can support, or the number of Tomcat instances on a single server. It all comes down to what resource bottlenecks you run into first in your application environment. In many webapp environments, the first bottleneck encountered is often database access, followed by the number of simultenaous requests being processed. Neither of those bottlenecks has much directly to do with how many different webapps you are talking about. Thanks! Craig ORIGINAL QUESTION: I am doing some Tomcat cost/benefit projections for my company. I need to determine the maximum number of applications that will run on Tomcat and still provide stable performance. I am not interested in a theoretical number at this time, just seeking information about what real developers are actually doing with real applications. At this time, I am not interested in what machine types, OSs, configurations, versions, are being used. I understand the answer to my questions will depend heavily on these issues as well as on the applications themselves. I just need to come up with a realistic number of instances/apps which are being run on a single machine by real users. I am seeking an answer to the following two questions: Number of Tomcat instances I am running on one machine: Number of individual applications I am running in all instances of Tomcat on one machine: Please feel free to respond to the mail list, or to me directly at [EMAIL PROTECTED] (if we don't want to clog the list with answers to this question). I will post a final resolution message to the mail list when I have come to some sort of conclusion. Thanks in advance for your help! -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Number of Tomcat Instances/Applications
I am doing some Tomcat cost/benefit projections for my company. I need to determine the maximum number of applications that will run on Tomcat and still provide stable performance. I am not interested in a theoretical number at this time, just seeking information about what real developers are actually doing with real applications. At this time, I am not interested in what machine types, OSs, configurations, versions, are being used. I understand the answer to my questions will depend heavily on these issues as well as on the applications themselves. I just need to come up with a realistic number of instances/apps which are being run on a single machine by real users. I am seeking an answer to the following two questions: Maximum number of Tomcat instances running on one machine: Maximum number of individual applications running in all instances of Tomcat on one machine: Please feel free to respond to the mail list, or to me directly at [EMAIL PROTECTED] (if we don't want to clog the list with answers to this question). I will post a final resolution message to the mail list when I have come to some sort of conclusion. Thanks in advance for your help! -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Number of Tomcat Instances/Applications (improved question)
I am doing some Tomcat cost/benefit projections for my company. I need to determine the maximum number of applications that will run on Tomcat and still provide stable performance. I am not interested in a theoretical number at this time, just seeking information about what real developers are actually doing with real applications. At this time, I am not interested in what machine types, OSs, configurations, versions, are being used. I understand the answer to my questions will depend heavily on these issues as well as on the applications themselves. I just need to come up with a realistic number of instances/apps which are being run on a single machine by real users. I am seeking an answer to the following two questions: Number of Tomcat instances I am running on one machine: Number of individual applications I am running in all instances of Tomcat on one machine: Please feel free to respond to the mail list, or to me directly at [EMAIL PROTECTED] (if we don't want to clog the list with answers to this question). I will post a final resolution message to the mail list when I have come to some sort of conclusion. Thanks in advance for your help! -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
Tomcat Test Environment v3.3x?
Has anyone experience with the WebSphere Tomcat Test Envrionment? I have found some doc at http://www7.software.ibm.com/vad.nsf/FrameData/Master?OpenDocumentTitle=Ove rviewFSet=1Doc3=4556Doc4=4567 which gives instructions to install and run a Tomcat Test Environment in VisualAge for Java v3.5.3. I searched IBM, but found no reference to Tomcat 3.3x. I have checked the user mail list archive, again with no luck. Can someone please inform me if I am just missing something obvious? I tried replacing the Tomcat directory structure which was installed into VAJava with the one which is extracted by the v3.3a zip file, but the TTE failed to start (not unexpectedly actually). Can someone inform me if it is possible, and possibly point me to some reference, to upgrade the TTE to run version 3.3a? Thanks very much. -- Jeff -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Tomcat Test Environment v3.3x? (improved question)
Has anyone experience with the WebSphere Tomcat Test Envrionment for use within VisualAge for Java? I have found some doc at http://www7.software.ibm.com/vad.nsf/FrameData/Master?OpenDocumentTitle=Ove rviewFSet=1Doc3=4556Doc4=4567 which gives instructions to install and run a Tomcat Test Environment version 3.2.1 in VisualAge for Java v3.5.3. What I would like to do is run Tomcat v3.3x inside of VAJava. I searched IBM, but found no reference to Tomcat 3.3x. I have checked the user mail list archive, again with no luck. Can someone please inform me if I am just missing something obvious? I tried replacing the Tomcat directory structure which was installed into VAJava with the one which is extracted by the v3.3a zip file, but the TTE failed to start (not unexpectedly actually). Can someone inform me if it is possible, and possibly point me to some reference, to upgrade the TTE to run version 3.3a? Thanks very much. -- Jeff -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
Tomcat 4.0.1 with Servlet 2.2
Our organization is new to Tomcat. I am trying to decide between installing Tomcat 3.3.x and the newer Tomcat 4.0.1. I would like to use the latest version, however due to portability (and mostly political) considerations within our environment I am only able to support the Servlet 2.2 and JSP 1.1 specs at this time. Is it possible to install Tomcat 4.0.1, yet configure the server to only support the older spec levels? If it is not configurable, would replacing the servlet.jar file with an older version (perhaps the one from Tomcat 3.3.x) work to accomplish this goal? Would there be any other obvious ramifications to this action? Am I missing any other obvious issues or alternatives? Thank you very much. -- Jeff -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
RE: Tomcat 4.0.1 with Servlet 2.2
Thanks all. Our problem is that we have a quite distributed developer community, and we can not count our developers to constrain themselves to the currently supported specs. Because of an organizational directive, one of our requirements is to maintain portability with our current WebSphere environment, which only supports Servlet 2.2 (for the foreseeable future). So I guess the best-easiest way around this problem is to use Tomcat 3.3a for now, the migrate to 4.x in the future. Thanks again everyone for the help. -- Jeff -Original Message- From: Craig R. McClanahan [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 30, 2002 10:24 AM To: Tomcat Users List Subject: Re: Tomcat 4.0.1 with Servlet 2.2 On Wed, 30 Jan 2002, Knutsen Jeffrey S wrote: Date: Wed, 30 Jan 2002 09:36:42 -0600 From: Knutsen Jeffrey S [EMAIL PROTECTED] Reply-To: Tomcat Users List [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Subject: Tomcat 4.0.1 with Servlet 2.2 Our organization is new to Tomcat. I am trying to decide between installing Tomcat 3.3.x and the newer Tomcat 4.0.1. I would like to use the latest version, however due to portability (and mostly political) considerations within our environment I am only able to support the Servlet 2.2 and JSP 1.1 specs at this time. Is it possible to install Tomcat 4.0.1, yet configure the server to only support the older spec levels? If it is not configurable, would replacing the servlet.jar file with an older version (perhaps the one from Tomcat 3.3.x) work to accomplish this goal? Would there be any other obvious ramifications to this action? Am I missing any other obvious issues or alternatives? One thing that might be an obvious issue is that Servlet 2.3/JSP 1.2 containers are required, by the specifications, to support web applications written to the Servlet 2.2/JSP 1.1 specification requirements. If you've written your application to those specs, and are not relying on unspecified behavior (or bugs) in your container, then your app will be perfectly portable. Trying to do things like changing the servlet.jar file without changing anything else is like trying to run diesel fuel through a car that has a gasoline engine -- it's not going to work :-). Thank you very much. -- Jeff Craig -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED] -- To unsubscribe: mailto:[EMAIL PROTECTED] For additional commands: mailto:[EMAIL PROTECTED] Troubles with the list: mailto:[EMAIL PROTECTED]
