[TYPO3-Solr] Solr on Debian 7 Wheezy with tomcat 6/7

[Johann Höchtl]

Do not use solr from debian repository. You cannot get this running. There are several plugins and configurations.

But there’s an install script which is named installsolrexistingtomcat.sh which will to everything for you (if you use tomcat7 you need to alter this script a bit => paths)

Of course first you need to remove everything that debian installed with the solr package.

The exception: "Unsupported major.minor version 51.0“  leads to an older java version being used. Please check your /etc/defaults/tomcat to see if theres a JAVA_HOME pointing to your old OpenJDK6


Am 18.09.2014 um 10:52 schrieb Michael Schams <typo3.lists at 2014.trash.schams.net>:

> Hi everyone,
> 
> We reached the limits of EXT:indexed_search several times now and I decided to have a closer look at Solr (long overdue).
> My first impression is: WOW, that's pretty cool :-)
> 
> I installed Tomcat 6.0.41 and Solr 4.8.1 on a dedicated Debian 7.6 Wheezy server by using the install script solr/Resources/Shell/install-solr.sh. That worked absolutely smoothly. Tomcat/Solr was running and I installed EXT:solr 3.0.0 on a TYPO3 6.2 instance on a separate machine. Connections between these boxes worked as well - so all good.
> 
> Then I decided, I should use as much packages from the official Debian repo, so I re-installed the Debian system from scratch and started to fiddle with java-6-openjdk*, Oracle/Sun's j2sdk 7, Tomcat 6* and 7*, Solr 4.8.1 as well as 4.8.10... and always ran into some weird issues, predominately getting Solr running in Tomcat.
> 
> I know, this is not a TYPO3 related issue as such, but I wonder, if someone could recommend a setup under Debian 7 Wheezy?
> 
> My preference at this point in time would be:
> 
> - Tomcat 7 (Debian package "tomcat7")
> - OpenJDK 7 or 8 (Debian packages)
> - or: Oracle's j2sdk 7** or 8**
> - Solr 4.8.1 (or the latest version if possible)
> 
> We will only access the Solr server with TYPO3 CMS 6.2 and EXT:solr 3.0.0 (or newer), so no older versions need to be supported.
> 
> A typical issue I encounter with this setup is for example:
> 
> SEVERE: Exception starting filter SolrRequestFilter
> java.lang.UnsupportedClassVersionError: org/apache/solr/servlet/SolrDispatchFilter : Unsupported major.minor version 51.0 (unable to load class org.apache.solr.servlet.SolrDispatchFilter)
> 
> I am aware of the documentation [1], which relates to Debian 6 Squeeze.
> I also tried "install-solr-existing-tomcat.sh" [2] with tomcat6 and adjusted the script for tomcat7... to no avail.
> 
> Any recommendations, suggestions, tips? :-)
> 
> 
> Cheers
> Michael
> 
> 
> [1] https://forge.typo3.org/projects/extension-solr/wiki/Setup_on_Debian
> 
> *) = Debian packages
> **) =  generate as Debian packages from the upstream distributables of the JDK as provided by Oracle
> 
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