### Maintenance

Optimize database room
  After numerous delete or update operations on Dotclear's database, it gets fragmented. Optimizing will allow to defragment it.
  It has no incidence on your data's integrity.
  It is recommended to optimize before any blog export.
Counters
  Initializing comments and trackbacks counters allows to check their exact numbers. This operation can be useful when importing from another blog platform (or when migrating from dotclear 1 to dotclear 2).
Search engine index
  These operations are necessary, after importing content in your blog, to use internal search engine, on public and private pages.
  - Index all posts: allows to index all posts
  - Index all comments: allows to index all comments and trackbacks
Vacuum logs
  Logs record all activity and connection to your blog history. Unless you need to keep this history, consider deleting these logs from time to time.
Empty templates cache directory
  It may be useful to empty this cache when modifying a theme's .html or .css files (or when updating a theme or plugin).
  Notice : with some hosters, the templates cache cannot be emptied with this extension. You may then have to delete the directory /cbtpl/ directly on the server with your FTP software.