Tomcat not loading APR

English Network/Internet
1

Hi all!

On my tomcat6 log I have the following:

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/jdk1.6.0_16/jre/lib/i386/server:/usr/java/jdk1.6.0_16/jre/lib/i386:/usr/java/jdk1.6.0_16/jre/../lib/i386:/usr/lib64/mpi/gcc/openmpi/lib64:/usr/lib64:/usr/lib64:/usr/java/packages/lib/i386:/lib:/usr/lib

Nonetheless, when executing

locate libapr

I have:

/usr/lib64/libapr-1.so.0
/usr/lib64/libapr-1.so.0.3.3
/usr/lib64/libaprutil-1.so.0
/usr/lib64/libaprutil-1.so.0.3.4
/usr/share/doc/packages/libapr-util1
/usr/share/doc/packages/libapr-util1/CHANGES
/usr/share/doc/packages/libapr-util1/LICENSE
/usr/share/doc/packages/libapr-util1/NOTICE
/usr/share/doc/packages/libapr1
/usr/share/doc/packages/libapr1/CHANGES
/usr/share/doc/packages/libapr1/LICENSE
/usr/share/doc/packages/libapr1/NOTICE

Note that /usr/lib64 is part of the java.library.path.

Why doesn’t tomcat recognizes the /usr/lib64/libapr-1.so.0 or /usr/lib64/libapr-1.so.0.3.3?

Best regards,
Jorge

2

you need to install libtcnative package with yast.

Apart from that, even with that library, I cannot get Tomcat to pick up the APR lib.

strange…if someone has a clue on this…


osprod1@opensmc:~/bin> ls -l /usr/lib64/libtc*
lrwxrwxrwx 1 root root     23 2010-03-10 13:58 /usr/lib64/libtcnative-1.so.0 -> libtcnative-1.so.0.1.17
-rwxr-xr-x 1 root root 141728 2009-11-01 13:08 /usr/lib64/libtcnative-1.so.0.1.17
osprod1@opensmc:~/bin> ls -l /usr/lib64/libapr*
lrwxrwxrwx 1 root root     17 2010-03-02 12:53 /usr/lib64/libapr-1.so.0 -> libapr-1.so.0.3.8
-rwxr-xr-x 1 root root 185272 2009-10-24 06:03 /usr/lib64/libapr-1.so.0.3.8
lrwxrwxrwx 1 root root     21 2010-03-02 13:50 /usr/lib64/libaprutil-1.so.0 -> libaprutil-1.so.0.3.9
-rwxr-xr-x 1 root root 143960 2009-10-19 21:34 /usr/lib64/libaprutil-1.so.0.3.9

but still getting the error

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /wos1/java/jdk1.6.0_18/jre/lib/amd64/server:/wos1/java/jdk1.6.0_18/jre/lib/amd64:/wos1/java/jdk1.6.0_18/jre/../lib/amd64:/usr/lib64/mpi/gcc/openmpi/lib64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
3

Not sure because I didn’t try enabling it myself but did you compile the wrapper library?
Apache Tomcat 6.0 - Apache Portable Runtime (APR) based Native library for Tomcat

4

compile it’s not needed since Suse provides the library already compiled (as you can see in my previous post).

5

Setting the following soft-links in your lib directory will resolve this and enable tomcat to load APR.

ln -s libapr-1.so.0.3.8 libapr-1.so
ln -s libtcnative-1.so.0.1.17 libtcnative-1.so

6

thanks, it’s working now :wink:

7

Thanks, this information is useful.