If you notice that Solr crawls abort (when looking at the Manifold screen http://servername:7602/mcf-crawler-ui/showjobstatus.jsp ), review the Manifold CF core log, located here: C:\Program Files (x86)\Ektron\Search1.0\ManifoldCF\core\logs\manifoldcf.txt .
Search for "abort" to find an entry like this:
DEBUG 2014-01-23 09:24:51,570 (Worker thread '17') - Aborting job 1387207413469 due to error 'org.apache.manifoldcf.agents.interfaces.ServiceInterruption: Solr exception during indexing (500): parsing error'
If you see this error, navigate to Start > Control Panel > Programs and Features . Here, you can see which Java JDK version is installed. JDK 7 builds 45 and later introduce security updates that cause the above issue.
You need SQL credentials to remove the SOLR config database
Access to the Solr installation file
1.) Download Java Kit 7, Build 51 (Windows x64) from Oracle :
2.) Uninstall Solr by running SolrInstall (right click and "Run as Administrator). You need your SQL credentials to remove the Solr config database.
3.) Re-Install Solr per the steps located here:
Setting up Solr Search > Setting up Solr Search on a Single On-Premises (Local) Server
4.) Reregister your site per these directions:
Part 2: Register your Solr Site
5.) Test the Solr crawl functionality to verify that the error reported in the Issue area (above) is fixed.