# Unless specified otherwise, by default Redis will save the DB:
# * After 3600 seconds (an hour) if at least 1 key changed
# * After 300 seconds (5 minutes) if at least 100 keys changed
# * After 60 seconds if at least 10000 keys changed
#
# You can set these explicitly by uncommenting the three following lines.
#
save 3600 1
save 300 100
save 60 10000
我解释下意思,3600秒内有1个key 的值发生变化,300秒内有100个key的值发生变化,60秒内有10000个key的值发生变化,redis默认只要达到上述任一一个条件就会备份,这种策略真不好理解,感觉第一个条件把后面两个覆盖了,任何修改key都会触发第一个条件啊