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]>
