what tomcat native library should I be using in production?

Question

When I compile my spring mvc app, I get this in the output:

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jdk1.6.0_17\bin;......

What exactly should I use in production that this is referring to?

score 14 · Accepted Answer · answered Feb 09 '10 at 17:48

14

Tomcat-native is a version of Tomcat that uses the highly optimized Apache Portable Runtime (APR), the same framework that powers the Apache HTTP server.

answered Feb 09 '10 at 17:48

Kevin

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ok, so what steps must i take to fix the problem as it says XXX was not found on path.. – bouncingHippo Nov 30 '12 at 16:11

score 6 · Answer 2 · answered Feb 09 '10 at 17:49

I found a post out there:

You can safely ignore this message if you want. Basically it is telling you that an optional shared library (dll on Windows) is not found. The APR is the Apache Portable Runtime. This is a native (non-java) library that can improve the performance of Tomcat in certain situations. On both Windows and Unix/Linux you will need a C compiler to build this library.

score 5 · Answer 3 · answered Feb 09 '10 at 18:05

Take a look at this talk , http://www.infoq.com/presentations/Tuning-Tomcat-Mark-Thomas , where one of the Tomcat developers discuss how to tune Tomcat - including which of the connectors (Like NIO or APr) to consider. The message you get about APR is referring to Tomcat Native

score 3 · Answer 4 · answered Oct 08 '14 at 15:02

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My case: Seeing the same INFO message.

Centos 6.2 x86_64 Tomcat 8.0.14

This fixed the problem for me:

yum install tomcat-native

answered Oct 08 '14 at 15:02

Zeeshan Akhter

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score 2 · Answer 5 · answered May 09 '18 at 10:59

To get APR working on a Windows server:

install the APR native libs into the Tomcat bin directory (for 64 bit use the tcnative files in the x64 subfolder)
add the Tomcat bin folder to the Windows %path% (this adds openssl to your path)

Additional Notes:

You cannot use a Java keystore with the APR connector as it expects certificates in the normal Apache format. To convert a pfx certificate I used:

openssl pkcs12 -in domain.pfx -clcerts -nokeys -out domain.cer
openssl pkcs12 -in domain.pfx -nocerts -nodes  -out domain.key
openssl pkcs12 -in domain.pfx -out domain-ca.crt -nodes -nokeys -cacerts

You will then be able to uncomment / enable the example SSL using the APR connector in Tomcat's server.xml

score 1 · Answer 6 · edited Aug 03 '15 at 05:49

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I was very new to Tomcat and faced the same problem; I think it was because I didn't stop the server properly.

In Eclipse, on the Server tab, right-click Tomcat and click "Clean". Restart the server. It worked for me.

edited Aug 03 '15 at 05:49

VLS

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answered Aug 03 '15 at 04:32

Neha Garg

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what tomcat native library should I be using in production?

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