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On 13/03/2007, at 11:22 AM, Roman Medina-Heigl Hernandez wrote:
Hello,
Server version: Apache Tomcat/5.5.17
Server number: 5.5.17.0
OS Version: 2.4.34-grsec-rslabs-k7
JVM Version: 1.4.2_10-b03
PS: A 2nd issue (not related to chroot) that I would like to
clarify, if
you're so kind: when I run the web app in Tomcat (version showed
above) I
got several processes (69 in particular). It seems to be related to
the
following FAQ:
Actually, you get 69 'threads'. Linux 2.4 kernel shows (and deals
with) threads
as processes.
http://tomcat.apache.org/faq/unix.html#ps
But I've read FAQ entry (and followed the two links in the entry)
and it is
unclear to me where there is some workaround in latest 2.4 kernels
(I'm
using 2.4.34; don't wanna switch to 2.6 yet). The FAQ talks about
lightweight processes (the "threads", as seen by Linux 2.4), but
how could
I check that they're really light? I'm trying to "measure" the
possible
impact of "linux threading problem" over my application. Some URLs
or help
would be welcomed. I've also set "LD_ASSUME_KERNEL=2.4" and
exported the
variable, without any apparent change of behaviour.
Look for NPTL and Linux in Google...
for example: http://kerneltrap.org/node/429
I would seriously recommend upgrading to a 2.6 kernel - (unless
performance
for your web app is irrelevant)
It would also be time to think about an upgrade to Java 1.5 or 1.6.
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