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README.md

NSF-1740627

This is README describes how to use the very simple scripts here to clone and build Hyrax. The scripts can also be used to set up a kind of poor-man's nightly, or CI, build.

The scripts in this repo are not the only way to build Hyrax, however. You can easily clone the three main repos and build them using the normal autotools (for libdap and BES) and ant (for the OLFS) process. Because Hyrax is a bit more complicated than a simple webapp, the process has a few more steps, but it's certainly possible to build the server in under 10 minutes on a typical laptop. For instructions see:

  http://docs.opendap.org/index.php/Hyrax_GitHub_Source_Build

Here's how to build using the scripts contained in this project. First, the short version, which will work if you have a machine that meets the prerequisites:

source spath.sh 

./hyrax_clone.sh

./hyrax_build.sh

The longer version:

  1. You need a Linux/OSX/Unix computer that can compile C, C++ and Java. Most of the requirements are fairly plain, with the exception that you'll need a recent copy of bison and flex and newer versions of the autotools software. Since CentOS/RedHat comes with 'yum' and the yum command syntax is fairly concise, I'll use it as shorthand for the packages you need (with the advantage that some users can cut and paste in a plain machine and get the packages installed very quickly):

yum install java-1.7.0-openjdk java-1.7.0-openjdk-devel ant git
gcc-c++ flex bison openssl-devel libuuid-devel readline-devel
zlib-devel libjpeg-devel libxml2-devel curl-devel ant-junit

Then download and build the latest versions of autoconf, automake and libtool. Those can be found at:

http://ftp.gnu.org/gnu/autoconf/autoconf-2.69.tar.gz
http://ftp.gnu.org/gnu/automake/automake-1.14.1.tar.gz
http://ftp.gnu.org/gnu/libtool/libtool-2.4.2.tar.gz

and are very easy to build.

  1. Set up the 'prefix' and 'PATH' environment variables in the shell you're using. Use 'source spath.sh' to do this. This will set the 'prefix' environment variable to pwd/build and add pwd/build/bin to the front of PATH so that libdap, BES and the various modules/handlers for the BES can find the dependencies once they are built.

    source spath.sh

  2. Now clone all of the source repos for Hyrax using the 'hyrax_clone.sh' script. This will take a while, but it's not too bad. The script takes some options: verbose (-v), dry run (-n) and No Dependencies (-D). The default will clone all of the repos including the hyrax-dependencies. If you're building on CentOS and want to use EPEL for the deps, use -D. Using -D will suppress cloning the hyrax-dependencies repo. This script assumes you want to clone the BES and load all of the modules/handlers that normally are released with Hyrax. If thats not what you want to do, go to the web page described earlier and build the code by hand, which will give you complete control over what software is cloned from git, how it is built and so on.

    ./hyrax_clone.sh -v

  3. Build the code using the 'hyrax_build.sh' script. It takes various options: verbose (-v), dry run (-n) and some others; -h provides some help. This script will build all of the code, including the hyrax-dependencies if they are present (so this script works 'intelligently' in conjunction with the hyrax_clone.sh script). The -c and -d options run the 'clean' and 'distcheck' targets of the Makefiles and are useful for automated builds.

    ./hyrax_build.sh -v

  4. Test the server. The hyrax_build.sh script will install the server in $prefix/build. If it completes successfully, the server should be built and installed.

To start the server, first start the BES and then the OLFS. Note that the besctl utility is on your PATH since you sourced 'spath.sh' and therefore have $prefix/bin on your PATH

besctl start

./build/apache-tomcat-7.0.57/bin/startup.sh

Now goto http://localhost:8080/opendap and you should see the server and the test data that is distributed with it. If not here are some things to check:

  • Is the BES running? There should be several processes associated with the BES and you can see them using 'besctl pids'. If not, look at the BES log file ($prefix/build/var/bes.log) for error messages.

  • Is tomcat running? Use 'ps -ef | grep tomcat' to see if it is. If not, look in $prefix/bui.d apache-tomcat-*/logs/catalins.out for clues as to why.

  • Are you working on a machine that has ports like 8080 blocked? Hyrax needs an open port for Tomcat, nominally 8080, plus an open port for the BES. By default the BES uses port 10022.

For more detailed information on Hyrax and its configuration, see:

http://docs.opendap.org/index.php/Documentation

Notes:

To clean the repo, returning it to it's initial state, use:

rm -rf bes build hyrax-dependencies/ libdap logs olfs \
 bes.log libdap.log olfs.log

If one of the distcheck targets failed, then the build dir that it left behind will not be writable by anyone, so chmod 755 or sudo to remove it.

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