Has established three shards mongo, deployed on 3 machines, respectively, each shard amount of data about 1 g, but in addition to machine 8 g memory footprint almost 7.6 g, the index is only about 200 n,
Through mongostat monitoring found that virtual memory vsize use only about 500 m, around res40m,
But can't imagine why reach nearly 8 G memory footprint, the amount of data is where come of? For help

CodePudding user response:

Ps - aux see which process occupies vsize, res