Hello
Sorry for bring up this all message, but did you solved? I have the same problem now, and since I have a cron job to restart apache every X minutes, and tomcat used all the memory, the whole httpd goes down. If anybody can give some lights here, I'll much apreciate . -- Best regards, SW> Hi, SW> I would like to bring up the issue that even if I use lastest JRE1.3. The problem still exists. AND even if I load test a SW> jsp file which contains nothing to execute. The problem still exists. So, I guess that: SW> 1. If the mod_jk is compiled with -DEAPI and you are using ajp13. There is still memory leak. SW> 2. But if you compile it without -DEAPI, the java heap seems to be constant for that. However, I don't know why the SW> allocated memory for the JVM still increases. SW> Thx. and Regards. SW> Steve. SW> -----Original Message----- SW> From: hanasaki [mailto:[EMAIL PROTECTED]] SW> Sent: Saturday, March 02, 2002 12:10 AM SW> To: Tomcat Users List SW> Subject: Re: Jetty .vs. tomcat SW> Just a thought. Try the most current Production JDK (1.4) and the most SW> current Tomcat (4+). That JDK version is a bit old. I am not preaching SW> "always do the latest and greatest" or "Use Beta Stuff in Prod". SW> Also, It might not hurt to check your code. It is possible to introduce SW> a "memory leak" in your own code by accidently maintaining a reference SW> to objects you no longer use. If the ref count never goes to zero, it SW> will never be scheduled for GC. SW> Steve Wong wrote: >> Hi mingfai, >> >> I am trying other application servers because I have some problems using >tomcat in a production environment. >> >> The environment is Solaris 8, JRE1.2.2, tomcat3.3, Apache1.3.23 with mod_ssl >and mod_jk. >> What I discovered is that when I use apache benchmark tool(ab) to generate >many requests on apache, the java heap allocated >> in tomcat continuously increases. Up to a point that there is OutOfMemoryError. >> If I generate the requests on tomcat instead, there is no problem. >> I am using the OptimizeIt to see the above result. >> >> And What I can find in cvs log of mod_jk is that there was a memory leak bug >in May last year. But this bug is said to be fixed. >> If I use Apache1.3.23 without mod_ssl, I find that the java heap remains >stable. However, I discovered that the allocated memory >> of the java process of tomcat continuously increases. Because I am afraid that >there will be OutOfMemeryError in the production >> environment. So, I restart the tomcat process regularly. >> >> Have you discovered the same things for your web application?? >> >> Thx. and Regards. >> Steve. >> >> -----Original Message----- >> From: Ming Fai [mailto:[EMAIL PROTECTED]] >> Sent: Friday, March 01, 2002 4:05 PM >> To: Tomcat Users List >> Subject: RE: Jetty .vs. tomcat >> >> >> hi Steve, >> >> I'm a Tomcat user. from what I read on the web, I believe Jetty does >> outperform Tomcat significantly in static pages and also outperform Tomcat >> to a unknown degree in dynamic pages. so, why i still choose Tomcat? >> >> My main consideration is in scalability. Multiple instance of Tomcat can be >> run and load balanced with Apache and mod_jk. I believe it can achieve a >> very high scalability in handling simultanceous requests. Other >> considerations are: good integration with other Apache and commercial >> products, better support (i personally think the 'support' from Apache group >> is better than other open src groups), full implementation of JCP >> specification etc. >> >> And Tomcat should not be used together with Apache if there is heavy loading >> of static pages. >> >> Other than Tomcat and Jetty, Resin is also quite famous. And there are other >> commercial choice like WebLogic, JRun and Orion. You should make decision >> base on your need. >> >> In my opinion, if your site is small in scale, and requires a very good >> response time, then Jetty or Resin are your choice. Otherwise, Tomcat is a >> good choice in general and it is a proven product. It occupies about 50% of >> the servlet engine market as of mid 2001. >> (http://www.devx.com/judgingjava/articles/sixyears/printable/sixyearsp2.asp# >> fig7) >> >> Any comment are welcome! >> >> Regards, >> mingfai >> >> >> >> >> >> >> >>>-----Original Message----- >>>From: Steve Wong [mailto:[EMAIL PROTECTED]] >>>Sent: Friday, March 01, 2002 3:17 PM >>>To: [EMAIL PROTECTED] >>>Subject: Jetty .vs. tomcat >>> >>> >>> >>> How will you compare jetty with tomcat? >>> Which one will you choose for a production environment? Why? >>> Any Performance figures about these 2 servlet containers? >>> >>>Thx. and Regards. >>>Steve. >>> >>>-- >>>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]> >> >> >> -- >> 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]>