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From "Satya Narayan Dash" <ndsa...@rediffmail.com>
Subject [users@httpd] Is it a Memory Leak in Apache 2.0.47???
Date Sun, 28 Sep 2003 02:18:46 GMT
Hi,

Anyway, I was able to migrate to Apache to 2.0.47 and Tomcat
4.1.27, after lot of intial hiccups. The connector is mod_jk and
they are running smothly in Windows2k and Linux 8.0.

I've an interesting observation. Feeding line feed characters to
Apache 2.0.40 (which) was my earlier version, lead me to memory
exhaustion. (Fixed in SECURITY [CAN-2003-0132]: Apache 
2.0.45),but
did not happen in 2.0.47. Nice...

But...but, when I load Apache / Tomcat with enough JSP / 
Servlet/
HTML requests the memory consumption is increasing and Apache 
does
not seem to release it.

My Application Configuration:

1. Apache serves the HTML pages and JSP/Servlets are redirected 
to
Tomcat.   (Connector - mod_jk / AJP13)

2. Tomcat has no role to play to serve the HTML pages.

    (non-SSL Coyote HTTP/1.1 coyote port is commented out)

3. Apache and Tomcat are running as two independent threads,
with
    Apache starting first.

The memory consumption, for win2k, is shown in this table.
(This is w.r.t. Apache 2.0.40 and the same thing is repeated in
Apache 2.0.47. )

Parent Process      Child Process    No.Of Pages      Running
Time
  (in KB)               (in KB)                          (In
min)

3812                    7952              Nil               10

3812                    12,992            25                20

3812                    15,128            140               20

140                      21,444           302               20

The memory consumption goes up and if I am killing my clients
(which sends HTML/JSP/Servlets requests), then , it hovers 
aroubnd
the same shoot-up value.

Now, can I conclude, if I am bombarding Apache with enough JSP /
Servlet / HTML requests, the memory leak happens???

Let me know about it.

Thanks,
Satya.

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