Yesterday I saw the following warning message in my logs:- 2018-10-06T14:11:19+01:00 geronimo postfix/postscreen[8194]: warning: psc_cache_update: btree:/var/lib/postfix/postscreen_cache update average delay is 151 ms
A tenth of a second is an ENORMOUS delay for an SSD, and my immediate thought was/is an incipient disc failure, but the monthly disc tests say 95 percent of the life expectancy remains. I have swept my logs since February and this is the only instance of the message. I am operating a domestic server (50 messages a day), running on a Synology NAS device, with things in the background I can't turn off. Could someone please explain what this message implies. Many thanks Allen C Perhaps I should get some back-ups done :-)
