Comments in line (warning - this is done before coffee):
On 11/3/2012 8:59 PM, vicky wrote:
Thanks christopher.
I am using Probe application for monitoring the Tomcat application , in that
everything is getting displyed fine except the "Min Spare Threads" & " Max
Spare thread"
Ques1 :
======
Both attributes have the value as Zero. As you said in below post that *Max
Spare Threads* is not anymore so Zero valus is expected for this but why the
"Min Spare Thread" value is zero. As per below documentation , default value is
25 for *Min Spare threads*, Any thoughts why is it like that.
http://tomcat.apache.org/tomcat-6.0-doc/config/executor.html
for your reference i am enclosing the server.xml & Probe application screenshot
Normally attachments get stripped by the mailing list. I suspect that
the reason I received them is because we're both on Yahoo.
Your server.xml is not using Executors, and the Probe screen shot shows
the normal HTTP and AJP connector pools as expected.
If you uncomment the Executor element in server.xml and use it in one or
more connectors, you'll see the Executor thread pool in Probe. The name
will be the name that you gave it in server.xml
Min Spare Threads shows up as it is configured in server.xml. Max Spare
Threads appears to follow largestPoolSize (according to VisualVM). This
appears to be a Probe issue.
If you mix and match (for example, using Executors for HTTP/HTTPS and a
private pool for AJP), then you'll see the appropriate thread pools in
Probe.
Ques 2:
======
As MaxThreads & MinThreads are in executor now ,does that mean whatever i
threads count i define here will get shared across Http,Https,Ajp protocol ?
You can mix and match. You can define some Connectors to use the
Executor thread pool, and others to use a private thread pool. You can
define multiple Executor thread pools for sharing between different
groups of Connectors.
If you don't configure a Connector to use an Executor, then it won't.
So in order to use an Executor, you need to configure two items.
1. The Executor
One or more, depending on your use case.
2. The Connector
Every Connector that should use an Executor needs to be configured to
use one explicitly. There are examples in the supplied server.xml
ques3
====
how i can achieve Protocol based (http/Ajp) thread allocation in case if i dont
want it to use it from executor
I don't think you can without using an Executor.
/Thanks/
/Vicky/
*From:* Christopher Schultz <ch...@christopherschultz.net
<mailto:ch...@christopherschultz.net>>
*To:* Tomcat Users List <users@tomcat.apache.org
<mailto:users@tomcat.apache.org>>
*Sent:* Friday, 2 November 2012 11:05 PM
*Subject:* Re: Tomcat 6 query
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Vicky,
On 11/2/12 4:40 AM, vicky007aggar...@yahoo.co.in
<mailto:vicky007aggar...@yahoo.co.in> wrote:
> Thanks mark.
>
> I concern why the minSpareThreads" & "maxSpareThreads" attributes
> dont exist at the below URL anymore
>
>> http://tomcat.apache.org/tomcat-6.0-doc/config/http.html
>
> As in tomcat 5 , i am able to locate http connector
This stuff isn't in the <Connector> anymore: it's in the <Executor>.
So, configure your Tomcat 6 connector to use an executor, then use
minSpareThreads on it. There is no maxSpareThreads anymore, only
maxThreads.
Again:
http://tomcat.apache.org/tomcat-6.0-doc/config/executor.html
- -chris
. . . just my two cents.
/mde/
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