SOLR is reindexing all pages after xwiki restart

[tmortagne]

@AutomationX

Is this expected behavior?

Definitely not.

@AutomationX

This can be seen in the administration by viewing the index queue decrease.

There is a better way to see this. At startup the SOLR module check if there is missing page in the index or SOLR documents to remove and indicate that in the log.