Everyday I get an error email from my python flask app with the following error:
WriteError: error 5 from memcached_set: (54648992) SERVER HAS FAILED AND IS DISABLED UNTIL TIMED RETRY, host: 127.0.0.1:11211 -> libmemcached/connect.cc:612
Memcached is running and the address is set up to 127.0.0.1 on both the client and the server. When I manually check connection it seems just fine. It only happens periodically.
~ cat /etc/memcached.conf:
# memcached default config file # 2003 - Jay Bonci <firstname.lastname@example.org> # This configuration file is read by the start-memcached script provided as # part of the Debian GNU/Linux distribution. # Run memcached as a daemon. This command is implied, and is not needed for the # daemon to run. See the README.Debian that comes with this package for more # information. -d # Log memcached's output to /var/log/memcached logfile /var/log/memcached.log # Be verbose # -v # Be even more verbose (print client commands as well) # -vv # Start with a cap of 64 megs of memory. It's reasonable, and the daemon default # Note that the daemon will grow to this size, but does not start out holding this much # memory -m 64 # Default connection port is 11211 -p 11211 # Run the daemon as root. The start-memcached will default to running as root if no # -u command is present in this config file -u memcache # Specify which IP address to listen on. The default is to listen on all IP addresses # This parameter is one of the only security measures that memcached has, so make sure # it's listening on a firewalled interface. -l 127.0.0.1 # Limit the number of simultaneous incoming connections. The daemon default is 1024 # -c 1024 # Lock down all paged memory. Consult with the README and homepage before you do this # -k # Return error when memory is exhausted (rather than removing items) # -M # Maximize core file limit # -r
/var/log/memcached.log is empty.