Creating a quantal lxc instance

For a while I tried to create a quantal lxc instance by first installing precise and then doing a distribution upgrade. After some documentation reading and reading of the lxc-ubuntu template, it turns out that's not necessary :-).

Instead, I should just:

lxc-create -t ubuntu -n quantal -- --release quantal

Next, to create a wheezy instance :-)

alfresco 4.2.x solr OverlappingFileLockException

In Alfresco 4.2.c (likely also in 4.2.b and 4.2.a), solr comes with

  alfresco.enableMultiThreadedTracking=true

 In the default setup I get:

    14:02:31,502 ERROR [org.alfresco.solr.tracker.CoreTracker] Tracking failed java.nio.channels.OverlappingFileLockException at sun.nio.ch.SharedFileLockTable.checkList(FileLockTable.java:255) at sun.nio.ch.SharedFileLockTable.add(FileLockTable.java:152) at sun.nio.ch.FileChannelImpl.tryLock(FileChannelImpl.java:1017) at java.nio.channels.FileChannel.tryLock(FileChannel.java:1154) ... 

Stopping solr and setting that false for both archive and workspace (archive|workspace)-SpacesStore/conf/solrcore.properties isn't sufficient. There will be other problems with the solr indexes.

So I just blow away the indexes and have them rebuild.

1. stop solr (and/or alfresco)
2. rm -rf archive/SpacesStore/* workspace/SpacesStore/*
3. rm -rf archive-SpacesStore/alfrescoModels workspace/SpacesStore/alfrescoModels
4. start solr (and/or alfresco).

Blowing away the models like that can lead to solr trying to index items for which the models haven't been indexed yet (leading to more solr related log entries). After everything is indexed though, those error logs should not appear anymore and solr will be stable moving forward.