Added the failed ckan install with jetty

CkanUbuntuJettyInstallFailure.md

+## CKAN with Solr-Jetty installation notes (failure) on Ubuntu 14
+
+### Assumptions
+The sudo command is effective
+
+### Reference
+We here follow the maintainers [installation guide](http://docs.ckan.org/en/latest/maintaining/installing/index.html).
+
+### Installation per se
+```
+sudo apt-get install python-dev postgresql libpq-dev python-pip python-virtualenv git-core solr-jetty openjdk-6-jdk
+```
+
+The following block is not mandatory. It's purpose it to locates ckan installation in the (current user) home dir:
+```
+cd
+mkdir -p ~/ckan/lib
+sudo ln -s ~/ckan/lib /usr/lib/ckan
+mkdir -p ~/ckan/etc
+sudo ln -s ~/ckan/etc /etc/ckan
+```
+
+Create the ad-hoc python virtual environment
+```
+sudo mkdir -p /usr/lib/ckan/default
+sudo chown `whoami` /usr/lib/ckan/default
+virtualenv --no-site-packages /usr/lib/ckan/default
+. /usr/lib/ckan/default/bin/activate
+```
+
+WARNING: from now on always make sure this python virtual environment is active.
+Make sure by checking the bash prompt that should be prefixed with ``(default)` !
+
+Install CKAN's current stable version and the required modules
+```
+pip install -e 'git+https://github.com/ckan/ckan.git@ckan-2.4.1#egg=ckan'
+pip install -r /usr/lib/ckan/default/src/ckan/requirements.txt
+```
+
+Just making sure the `virtualenv` is ok:
+```
+deactivate
+. /usr/lib/ckan/default/bin/activate
+```
+
+Create the PostgreSQL database `USER` named `ckan_default`
+```
+sudo -u postgres createuser -S -D -R -P ckan_default
+```
+
+Create the PostgreSQL `DATABASE` named `ckan_default`
+```
+sudo -u postgres createdb -O ckan_default ckan_default -E utf-8
+```
+
+Create a `ckan` customization file...
+```
+sudo mkdir -p /etc/ckan/default
+sudo chown -R `whoami` /etc/ckan/
+cd /usr/lib/ckan/default/src/ckan
+paster make-config ckan /etc/ckan/default/development.ini
+```
+
+...and customize ckan
+```
+sudo vim /etc/ckan/default/development.ini
+   ---> sqlalchemy.url : change the "pass" string for the password of ckan_default user
+   ---> ckan.site_url = http://liris-vm-32.insa-lyon.fr
+```
+
+Configure `jetty` (used under the hood by `Solr`)
+```
+sudo vim /etc/default/jetty
+  ---> NO_START=0            # (line 4)
+  ---> JETTY_HOST=127.0.0.1  # (line 15)
+  ---> JETTY_PORT=8983       # (line 18)
+```
+
+Fix the broken launcher as [documented here](https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=719875
+```
+sudo vim /etc/init.d/jetty
+  ---> ROTATELOGS=/usr/bin/rotatelogs      # (line 201)
+```
+
+Launch `jetty` and assert `jetty` is running and OK:
+```
+sudo service jetty start
+sudo apt-get install lynx
+lynx http://localhost:8983
+```
+
+And now assert that `Solr` is served properly by Jetty:
+```
+lynx http://localhost:8983/solr/
+```
+Now `Solr-jetty` fails poorly with the following message:
+```
+    HTTP ERROR 500
+    Problem accessing /solr/index.jsp. Reason:
+    JSP support not configured
+```
+
+### Inquiring on the reasons for such a failure
+In order to inquire why let us retrieve the installed version number of jetty by following
+[this method](https://wiki.eclipse.org/Jetty/FAQ#How_do_I_know_which_version_of_Jetty_I_am_running.3F).
+Let's start by finding out where `start.java` is installed:
+```
+dpkg -l | grep -i jetty
+dpkg -L libjetty-extra libjetty-extra-java libjetty-java solr-jetty jetty | grep -i start.jar
+```
+which thus happens to be ``/usr/share/jetty/``. We can now retrieve the jetty version:
+```
+pushd /usr/share/jetty/;  java -jar start.jar --version; popd
+   ---> null 6.1.24
+```
+And BTW version 6 of jetty seems to be completely outdated (search for the word papyrus
+[on this page](https://github.com/ckan/ckan/issues/1651).
+
+With this version number google tells us that the above `Solr-jetty` error message seems to be a classic ubuntu distribution/packaging problem documented in the numerous following pages:
+  * [Stackoverflow](http://stackoverflow.com/questions/30355839/ckan-local-installation-500-error-on-solr-jsp-support-not-configured)
+  * [UbuntuForums](http://ubuntuforums.org/showthread.php?t=1380876)
+  * [other related entry](http://stackoverflow.com/questions/3521654/missing-jsp-support-in-jetty-or-confusing-log-message)
+
+Eventually note that [this CKAN Github hosted discussion](https://github.com/ckan/ckan/issues/1651) seems to mention that there is a workaround for this `solr-jetty` bug which consists in declaring `/usr/share/java/tomcat-coyote.jar` in the jetty config file `/etc/jetty/start.config`. Alas this failed for me...

Readme.md

@@ -17,8 +17,8 @@
 
 ### Technologies:
   * CKAN:
-     * [Solr-Tomcat successful install from sources on Ubuntu](/CkanUbuntuTomcatInstall.md) 
-     * [[CkanUbuntuJettyFailure|Solr-Jetty fails to install on Ubuntu]]
+     * [Solr-Tomcat successful install from sources on Ubuntu](/CkanUbuntuTomcatInstall.md)
+     * [Solr-Jetty fails to install on Ubuntu](/CkanUbuntuJettyFailure.md)
   * [[https://tech.knime.org/installation-0|Knime]]
     * Open source (GPL), German made
     * [[https://tech.knime.org/community/developers|Installation out of sources]]