Re: Assessing Tomcat's State
Thanks for the link. I didn't know about Nagios; it seems like a pretty useful tool. I'll have to take for a spin. About the Tomcat state issue, I actually got them resolved. I basically followed Tim Funk's tips (see prior posts). I modified some C code to get the UNIX PIDs straight from the kernel and handle the polling for the "shutting down" state, and also found some nice URL classes within the Cocoa frameworks (Objective-C on Mac OS X) to handle the polling for the "starting up" state. I'm a happy camper. -FB On Sunday, June 8, 2003, at 07:10 PM, Yoav Shapira wrote: Howdy, I use nagios for this: www.nagios.org. Yoav Shapira = Yoav Shapira [EMAIL PROTECTED] __ Do you Yahoo!? Yahoo! Calendar - Free online calendar with sync to Outlook(TM). http://calendar.yahoo.com - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Assessing Tomcat's State
That's a good idea. Thanks! Take care, -FB On Saturday, June 7, 2003, at 03:23 PM, Tim Funk wrote: The easy kluge is to hack the startup scripts (or write wrappers) around the startup scripts to maintain this status in some file, for arguements sake: cowbell.txt In startup.sh --> echo "starting" > cowbell.txt In startup.sh, a timer does wgets on a static asset. Once the asset is returned correctly: echo "started" > cowbell.txt In shutdown.sh --> echo "stopping" > cowbell.txt In shutdown.sh --> A timer looking for the java process id. Once the process ID is gone, echo "stopped" > cowbell.txt -Tim Francisco J. Bido wrote: Thanks Tim, Those suggestions work pretty well for checking the "running" and the "stopped" states. The ones giving me a headache are really "starting up" and "shutting down".The only thing I can think of at this point is to monitor the size of catalina.out and trigger an event went it doesn't change. This is nasty since many things can cause the file to appear idle i.e., a busy CPU. Any thoughts on these assessing these remaining states? -FB On Saturday, June 7, 2003, at 02:41 PM, Tim Funk wrote: Depending on your needs if you just need UP or down, you can use wget or a similar agent. You can also set CATALINA_PID in unix before calling the startup scripts and the file referenced by CATALINA_PID will contain the process ID. Or you can write a LifeCycle Listener to trap startup and shutdown events. -Tim Francisco J. Bido wrote: Is there any way to assess Tomcat's state via an environment variable? For example, I would like to poll an environment variable to see if Tomcat is: 1. starting up 2. running 3. shutting down 4. stopped There're a bunch of other states out there but the above fulfill my immediate needs. Parsing through the catalina.out log file is the only way I know how to do this but this is approach is way too clumsy and ugly. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Assessing Tomcat's State
Thanks Tim, Those suggestions work pretty well for checking the "running" and the "stopped" states. The ones giving me a headache are really "starting up" and "shutting down".The only thing I can think of at this point is to monitor the size of catalina.out and trigger an event went it doesn't change. This is nasty since many things can cause the file to appear idle i.e., a busy CPU. Any thoughts on these assessing these remaining states? -FB On Saturday, June 7, 2003, at 02:41 PM, Tim Funk wrote: Depending on your needs if you just need UP or down, you can use wget or a similar agent. You can also set CATALINA_PID in unix before calling the startup scripts and the file referenced by CATALINA_PID will contain the process ID. Or you can write a LifeCycle Listener to trap startup and shutdown events. -Tim Francisco J. Bido wrote: Is there any way to assess Tomcat's state via an environment variable? For example, I would like to poll an environment variable to see if Tomcat is: 1. starting up 2. running 3. shutting down 4. stopped There're a bunch of other states out there but the above fulfill my immediate needs. Parsing through the catalina.out log file is the only way I know how to do this but this is approach is way too clumsy and ugly. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Assessing Tomcat's State
Is there any way to assess Tomcat's state via an environment variable? For example, I would like to poll an environment variable to see if Tomcat is: 1. starting up 2. running 3. shutting down 4. stopped There're a bunch of other states out there but the above fulfill my immediate needs. Parsing through the catalina.out log file is the only way I know how to do this but this is approach is way too clumsy and ugly. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Session Snooper
The link is broken. On Friday, May 30, 2003, at 07:35 AM, bedetrob wrote: Try this one: http://www.krasu.ru/server/examples/jsp/snoop.html Rob -Original Message- From: Francisco J. Bido [mailto:[EMAIL PROTECTED] Sent: Monday, April 21, 2003 8:54 AM To: Tomcat Users List Subject: Re: Session Snooper I see... Any equivalents or close approximations to what Snooper is to provide? Thanks, -FB On Monday, April 21, 2003, at 07:48 AM, [EMAIL PROTECTED] wrote: Sun took the API off because of security concern. I guess that is why it is no longer there anymore. Chao ---Original Message--- From: "Francisco J. Bido" <[EMAIL PROTECTED]> Sent: 04/20/03 02:42 AM To: Tomcat Users List <[EMAIL PROTECTED]> Subject: Session Snooper About a two years ago I was on a project were I used a JSP utility called Snooper to inspect HttpSession objects. I figured it was widely available but I couldn't find a Google hit for it. Can anyone provide an URL or email a copy? It's not hard to create one from scratch but Snooper did some very nice rendering of the inspection results and I don't have too much time at this moment. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: Reading an XML File From a Servlet
Thanks for the tip. I found a very good article at: http://www.javaworld.com/javaworld/jw-05-2000/jw-0518-jdom.htm Best, -FB On Wednesday, March 12, 2003, at 12:53 AM, Dan Tran wrote: Sorry I dont have an example for you, but all you need is a InputStream to your xml file in your war file. Here is the interface to get it InputStream is = servlet.getServletContext().getResourceAsStream(pathName); Hope it helps -Dan - Original Message - From: "Francisco J. Bido" <[EMAIL PROTECTED]> To: "Tomcat Users List" <[EMAIL PROTECTED]> Sent: Tuesday, March 11, 2003 10:45 PM Subject: Reading an XML File From a Servlet Hi, I have a controller servlet which reads its configuration information from an xml file. I can do this relative to my local file system. My question is how to get the servlet to read the xml file from the WEB-INF directory once packaged in a typical WAR file. I'm lost regarding what the steps to follow or where to find a good example on how to achieve this. For example, do I need to declare a resource in the webapp's web.xml? Any help appreciated. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Reading an XML File From a Servlet
Hi, I have a controller servlet which reads its configuration information from an xml file. I can do this relative to my local file system. My question is how to get the servlet to read the xml file from the WEB-INF directory once packaged in a typical WAR file. I'm lost regarding what the steps to follow or where to find a good example on how to achieve this. For example, do I need to declare a resource in the webapp's web.xml? Any help appreciated. Thanks! -FB - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: HTTTP Status 404 Tomcat on MAC os X
1. Did you try restarting Tomcat? 2. Double check your web.xml file since It doesn't look like your servlet is deploying correctly. 3. Also check your catalina.out log for any startup errors. 4. Find a complete example that works and make sure you understand what the web.xml entries mean. Best of Luck, -FB On Friday, February 28, 2003, at 05:31 AM, apratim sharma wrote: hi !!1 i'm getting following error on running servlet created by me HTTP Status 404 - /exp/servlet/first --- - type Status report message /exp/servlet/first description The requested resource (/exp/servlet/first) is not available. --- - Apache Tomcat/4.1.18 Anybody plz help me __ Do you Yahoo!? Yahoo! Tax Center - forms, calculators, tips, more http://taxes.yahoo.com/ - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
