andrewbrg commented on issue #1686: URL: https://github.com/apache/incubator-pagespeed-ngx/issues/1686#issuecomment-653814583
@jmarantz @Lofesa Hi guys, i have a small update for you on this matter. So, We moved to a memcached cache and all was good for a few months except in the last few days the 404 issue re-occurred on one of the sites. I noticed again that flushing the pagespeed cache helped initially but the same images would eventaully get re-written to 404s. The cache DB has plenty of free space. I noticed the only thing which seems to have fixed it was going into the server and deleting the pagespeed cache folder and re-creating it again with 777 permissions. So the issue i think is tied in so way to the file cache getting corrupted or something. ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org