# volatile-random -> remove a random key with an expire set
# allkeys->random -> remove a random key, any key
# volatile-ttl -> remove the key with the nearest expire time (minor TTL)
+# noeviction -> don't expire at all, just return an error on write operations
+#
+# Note: with all the kind of policies, Redis will return an error on write
+# operations, when there are not suitable keys for eviction.
+#
+# At the date of writing this commands are: set setnx setex append
+# incr decr rpush lpush rpushx lpushx linsert lset rpoplpush sadd
+# sinter sinterstore sunion sunionstore sdiff sdiffstore zadd zincrby
+# zunionstore zinterstore hset hsetnx hmset hincrby incrby decrby
+# getset mset msetnx exec sort
+#
+# The default is:
#
# maxmemory-policy volatile-lru