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Posted to users@tomcat.apache.org by Gokul <go...@gmail.com> on 2016/05/23 17:11:17 UTC

Soap service in Tomcat - Slow

Hello,

I have a webservice application deployed in Tomcat 7 and getting 6 secs
response time for method calls.

Below is my environment information.

Tomcat Version: Tomcat/7.0.69
Java Version : JRE7
OS: RHEL 6.7

So, everytime when a webservice method is called the total time taken for
each method is minimum 5 seconds. I am trying to find if there is a
specific Tomcat fine tuning that I need to follow.

The webservice connects to Oracle JDBC 11G database and the same version of
webservice app running on IBM Websphere, connecting to the same database is
giving 400 ms as response time.

Any help is appreciated.

-Gokul

Re: Soap service in Tomcat - Slow

Posted by Mark Thomas <ma...@apache.org>.
On 23/05/2016 18:40, Christopher Schultz wrote:
> Gokul,
> 
> On 5/23/16 1:11 PM, Gokul wrote:
>> Hello,
> 
>> I have a webservice application deployed in Tomcat 7 and getting 6
>> secs response time for method calls.
> 
>> Below is my environment information.
> 
>> Tomcat Version: Tomcat/7.0.69 Java Version : JRE7 OS: RHEL 6.7
> 
>> So, everytime when a webservice method is called the total time
>> taken for each method is minimum 5 seconds. I am trying to find if
>> there is a specific Tomcat fine tuning that I need to follow.
> 
>> The webservice connects to Oracle JDBC 11G database and the same
>> version of webservice app running on IBM Websphere, connecting to
>> the same database is giving 400 ms as response time.
> 
> Thread dump during the 5-second pause?

My guess is the thread dump will show no connection pool or maybe a
poorly configured one.

Mark


> 
> Initial guesses:
> 
> 1. DNS reverse-lookup taking a long time (disable DNS lookups)
> 2. Entropy exhaustion for crypto operations (improve entropy source)
> 3. Poorly-configured <Connector> with a 5-second HTTP keepalive timeout
> 
> #2 usually brings everything to a halt, so that's unlikely to be the
> problem if your requests are always taking 5 seconds.
> 
> #3 would only be a problem if you were using the BIO connector and all
> request-processor threads were in use.
> 
> We will need more information to be able to help you. A thread dump is
> the best thing to evaluate.
> 
> -chris
> 
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Re: Soap service in Tomcat - Slow

Posted by Christopher Schultz <ch...@christopherschultz.net>.
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Gokul,

On 5/23/16 1:11 PM, Gokul wrote:
> Hello,
> 
> I have a webservice application deployed in Tomcat 7 and getting 6
> secs response time for method calls.
> 
> Below is my environment information.
> 
> Tomcat Version: Tomcat/7.0.69 Java Version : JRE7 OS: RHEL 6.7
> 
> So, everytime when a webservice method is called the total time
> taken for each method is minimum 5 seconds. I am trying to find if
> there is a specific Tomcat fine tuning that I need to follow.
> 
> The webservice connects to Oracle JDBC 11G database and the same
> version of webservice app running on IBM Websphere, connecting to
> the same database is giving 400 ms as response time.

Thread dump during the 5-second pause?

Initial guesses:

1. DNS reverse-lookup taking a long time (disable DNS lookups)
2. Entropy exhaustion for crypto operations (improve entropy source)
3. Poorly-configured <Connector> with a 5-second HTTP keepalive timeout

#2 usually brings everything to a halt, so that's unlikely to be the
problem if your requests are always taking 5 seconds.

#3 would only be a problem if you were using the BIO connector and all
request-processor threads were in use.

We will need more information to be able to help you. A thread dump is
the best thing to evaluate.

- -chris
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