topic Re: Purpose of backup-lucene-indexes in Alfresco Archive

Purpose of backup-lucene-indexes

theorbix — Thu, 19 Jun 2008 11:34:36 GMT

What is the actual purpose of the backup-lucene-indexes under /alf_data?It's clearly a backup of the main Lucene full-text index structure that is located in /alf_data/lucene-indexes.But what I don't understand is when and how the content of the files in backup-lucene-indexes are created and updated

Re: Purpose of backup-lucene-indexes

loftux — Thu, 19 Jun 2008 11:53:39 GMT

It is the folder you should backup for lucene index, see http://wiki.alfresco.com/wiki/Backup_and_Restore#Backing_up_the_Filesystem
It is scheduled to be created each day at 3am.
Never hot backup lucene_index directory, it will most likely cause index corruption.

Peter Löfgren

Re: Purpose of backup-lucene-indexes

theorbix — Fri, 20 Jun 2008 10:30:17 GMT

Thanks Peter.

So I assume that even if I delete this folder, it will be automatically recreated every night…. Ok.

Probably there is a way to disable this automatic backup of indexes, but I also see the potential downsides (it will save disk space, but if the main index becomes corrupt for any reason, the only workaround would be a total rebuild of the index, or the recovery from a tape backup of the main indexes…