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Posted to users@tomcat.apache.org by efftronics <ra...@efftronics.com> on 2010/10/12 17:00:58 UTC

APR based tomcat native library not found

Hi,
    I am running apache tomcat 6.0.18 , java 1.6 on windows xp platform.
    I copied tcnative-1.dll  and openssl.exe(1.1.14 version) in
     C:\apache-tomcat-6.0.18\bin . But i when i run 
    startup.bat it showing that "APR based tcnative library not found" . I
    also tried with 1.1.8,1.1.0,1.1.19,1.1.20 APR libraries but there is
    no use.Plaease help me.Which version i have to use.Please provide the
    link.
          Thank you.
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Re: APR based tomcat native library not found

Posted by Christopher Schultz <ch...@christopherschultz.net>.
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To whom it may concern,

On 10/12/2010 11:00 AM, efftronics wrote:
>     I am running apache tomcat 6.0.18 , java 1.6 on windows xp platform.
>     I copied tcnative-1.dll  and openssl.exe(1.1.14 version) in
>      C:\apache-tomcat-6.0.18\bin . But i when i run 
>     startup.bat it showing that "APR based tcnative library not found".

It should also dump the value for the system property java.library.path.
What value does it show there?

Note that Tomcat 6.0.18 is over 2 years old. Consider upgrading to the
latest.

> I also tried with 1.1.8,1.1.0,1.1.19,1.1.20 APR libraries but there
> is no use.Plaease help me.Which version i have to use.Please provide
> the link.

http://tomcat.apache.org/tomcat-6.0-doc/apr.html

Note the following, directly from the above link:

"Windows binaries are provided for tcnative-1, which is a statically
compiled .dll which includes OpenSSL and APR."

That means you don't need openssl.exe at all unless you have chosen to
use separate, dynamically linked .dll files. It looks like you're doing
a little of both. If you use separate .dlls, you need: tcnative.dll,
apr.dll, and some kind of openssl library (it's unclear if you need
openssl.exe or something else).

The binaries I find for 1.1.20 say they were built against APR 1.3.9 and
OpenSSL 0.9.8k.

So, it sounds like you need to:

1. Use the OpenSSL version that is expected (0.9.8k instead of whatever
1.1.14 is)

2. Add the APR .dll

3. Double-check your java.library.path and make sure the .dll files are
in there somewhere (or change your java.library.path)

- -chris
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