alright - it was a real unlucky coincidence … seems like the piwik.piwik_archive_blob_2018_02 table got corrupted yesterday - and because of this Archive Cronjob didn’t finish properly and started reprocessing all & everything since last successful execution …
Archive Process start: “Archiving was last executed without error 1 days 0 hours ago”
Replaced broken Table with older one out of our Backups - now Archive Cronjob won’t reprocess every Website every Hour again … 
Feature Request:
- don’t reprocess all Websites if archiving fails fore some specific Websites (in my Case - 123 Websites out of 1107 triggered Error because of broken Table) - but all 1107 were reprocessed every Hour - maybe it’s possible to only reprocess the Websites which triggered the Error …
- E-Mail Notification of Admin if Archive Cronjob fails with Error (Wouldn’t have noticed that Error for a long time if - by pure coincidence - I wouldn’t have installed libmaxminddb + MaxMind-DB-Reader-php C Module the same day and closely looked into performance metrics because of that …
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