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Dear J'
What do you mean you are hitting connection limits?! Are you getting
errors? What are you seeing that makes you think that is slow?
Is there a database involved in this application?
I assume you are running linux on your server, with a 2.6 kernel.
run the following commands while your box
1) ps auxH
2) ps auxH |grep -c java
3) vmstat 5 5
4) iostat 5 3
Then we will have a bit of an idea what is going on.
Andrew
On 15/02/2007, at 9:36 PM, j r wrote:
> The reason it is hitting its limits is easy: traffic. We easily
> get enough
> website traffic to overflow the connection limits unless I have
> many boxes
> available to serve. I know these can be configured to handle more
> connections. I know that we should be able to do this in the tomcat
> server. That is why I need those tweaking parameters defined.
>
>
>
> Thanks,
> j
>
> On 2/15/07, Leon Rosenberg <rosenberg.leon@googlemail.com> wrote:
>>
>> First you should investigate why tomcat is hitting its limits.
>> Why do you think it does? Which resource is the limit?
>> Do you have/use any monitoring software? moskito? lambdaprobe?
>> tomcat-manager?
>>
>> regards
>> Leon
>>
>> On 2/15/07, j r <jreynolds11@gmail.com> wrote:
>> > I have searched for exact documentation on this, and I always find
>> > conflicting info. Therefore I am reaching out to this list. I
>> have the
>> > following info and questions:
>> >
>> > - we are running tomcat 5.5.20
>> > - we have the following configs in server.xml:
>> > <Connector port="8009"
>> > enableLookups="false" redirectPort="8443" debug="0"
>> > maxThreads="750" minSpareThreads="100"
>> maxSpareThreads="250"
>> > acceptCount="100" connectionTimeout="5000"
>> > tomcatAuthentication="
>> > false"
>> >
>> > - we have extra capacity (mem, cpu, etc.) on the servers, yet
>> tomcat is
>> > hitting connection limits
>> > - we feel that tomcat can serve more, so what do we tune to make
>> it do
>> so?
>> > - maxThreads?
>> > - minSpareThreads?
>> > - maxSpareThreads?
>> > - acceptCount?
>> >
>> >
>> > Honestly, I would rather love an exact definition of what each
>> of those
>> > would do to the tomcat server if tweaked. Knowing that would be
>> nirvana
>> for
>> > tuning.
>> >
>> >
>> >
>> > -j
>> >
>>
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