In the forum at several instances the recommandation is given: “Delete the tmp files” .
What is the function of the Piwik tmp folder (…/piwik/tmp/) and what is the fuction of the cache folder (…/piwik/tmp/cache).
When are the files in these folders created ?
When are the files in these folders needed?
Under which circumstances these files can be deleted?
What information is lost after deleteing these files?
Many thanks in advance for answering.