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Posted to users@tomcat.apache.org by Darek <dc...@infinitesource.ca> on 2005/03/12 09:21:10 UTC
Multiple instances of tomcat
I have a tomcat 4-1-27 running on RedHat 2.4.21. Normally
when you startup tomcat it will create a single instance, I
have however about 28 created right away. I understand that
they all share the same memory, but I don?t think this is a
normal behavior. What can be causing this?
DarekC
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Re: Multiple instances of tomcat
Posted by Darek <dc...@infinitesource.ca>.
All those are threads; tomcat creates 2 at first and the
second forks the rest, if you kill either one tomcat will
exit. I am asking because another server with the same
configuration shows only one single thread.
There are some problems with applications on the first
server, which seem to be related to the memory.
Both servers are running on 2.4.21 kernel and only one of
them shows multiple threads when ps is executed, while both
have tomcat 4.1.27 and j2sdk1.4.2_04. i am not sure what
have I missed. Documentation mentions CATALINA_BASE that
when defined implies multiple virtual hosts. I am not sure
what I have done, while configuration files look exactly
same.
I appreciate your help.
DarekC
On Sat, 12 Mar 2005 07:17:28 -0600
QM <qm...@brandxdev.net> wrote:
>On Sat, Mar 12, 2005 at 12:21:10AM -0800, Darek wrote:
>: I have a tomcat 4-1-27 running on RedHat 2.4.21.
>Normally
>: when you startup tomcat it will create a single
>instance, I
>: have however about 28 created right away. I understand
>that
>: they all share the same memory, but I don?t think this
>is a
>: normal behavior. What can be causing this?
>
>1/ please post a *new* message when writing to the list.
> Replying to
>an old (unrelated) message confuses thread-aware mailers,
>which makes
>your question harder to find (and thus answer).
>
>2/ Are these separate Tomcat instances, or just PIDs?
> Pre-NPTL Linux
>kernels show threads as separate processes. That's likely
>what you're
>seeing.
>
>-QM
>
>--
>
>software -- http://www.brandxdev.net
>tech news -- http://www.RoarNetworX.com
>
>
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>To unsubscribe, e-mail:
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>
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Re: Multiple instances of tomcat
Posted by QM <qm...@brandxdev.net>.
On Sat, Mar 12, 2005 at 12:21:10AM -0800, Darek wrote:
: I have a tomcat 4-1-27 running on RedHat 2.4.21. Normally
: when you startup tomcat it will create a single instance, I
: have however about 28 created right away. I understand that
: they all share the same memory, but I don?t think this is a
: normal behavior. What can be causing this?
1/ please post a *new* message when writing to the list. Replying to
an old (unrelated) message confuses thread-aware mailers, which makes
your question harder to find (and thus answer).
2/ Are these separate Tomcat instances, or just PIDs? Pre-NPTL Linux
kernels show threads as separate processes. That's likely what you're
seeing.
-QM
--
software -- http://www.brandxdev.net
tech news -- http://www.RoarNetworX.com
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