mod_jk apache 2.4 smartos zone

If, compiling mod_jk, you get

/usr/bin/bash: ../build/libtool: No such file or directory

Then

cd native/
./configure --with-apxs=/opt/local/bin/apxs
mkdir build
cp libtool build/
make
cp ./apache-2.0/mod_jk.so /opt/local/lib/httpd/

tomcat sloooow to start, smartos, kvm: urandom?

A fresh installation of CentOS 7 in a SmartOS KVM virtual machine using a dataset (     image_uuid: d8e65ea2-1f3e-11e5-8557-6b43e0a88b38).
CentOS updated just after the installation.

• apache-tomcat-7.0.64
• Java(TM) SE Runtime Environment (build 1.7.0_80-b15)

I noticed that Tomcat, at startup was very very very, help me, very slow to start.

I used strace to look at what was happening (even if I don't understand anything).

I got a lot of

[pid  1279] futex(0x7f5a880a7154, FUTEX_WAIT_BITSET_PRIVATE, 1, {348, 455527976}, ffffffff) = -1 ETIMEDOUT (Connection timed out)

[pid  1279] futex(0x7f5a880a7128, FUTEX_WAKE_PRIVATE, 1) = 0

Just googled around. I found something similar.

So the solution is: to add the following option to java in the tomcat startup script

-Djava.security.egd=file:/dev/urandom

 (like CATALINA_OPTS="$CATALINA_OPTS -Djava.security.egd=file:/dev/./urandom").

Who knows?

Can't load log handler *.FileHandler

Starting Tomcat (installed from binary http://tomcat.apache.org/download-60.cgi, on a CentOS 5.5 server), I was getting an error like this in ''catalina.out''

Can't load log handler "4host-manager.org.apache.juli.FileHandler"


This was because I set ''JAVA_OPTS'' at the end of the startup script ''catalina.sh'', overwriting all the default ''JAVA_OPTS''...

So the solution is (obviously):

JAVA_OPTS="blablabla $JAVA_OPTS"

How to install Apache Tomcat Native library on CentOS 5.5

If you see this in your tomcat log

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_24/jre/lib/amd64/server:/usr/java/jdk1.6.0_24/jre/lib/amd64:/usr/java/jdk1.6.0_24/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib

Do so:

yum install apr-devel

Download package from http://tomcat.apache.org/download-native.cgi

cd tomcat-native-1.1.20-src/jni/native/

You must have java installed (I use sun-java). Since you are using tomcat, it is already installed, isn't it?

./configure --with-apr=/usr/bin/apr-1-config

In any case you will get (I don't know, I've not investigated)

configure: error: can't locate a valid JDK location

btw

./configure --with-apr=/usr/bin/apr-1-config --with-java-home=/usr/java/jdk1.6.0_24

make

su -

make install

At this point you must inform tomcat where this library is located

We can add
-Djava.library.path=/usr/local/apr/lib
to JAVA_OPTS in the catalina.sh script

or add
export LD_LIBRARY_PATH="/usr/local/apr/lib"
at the begginning of the same script