I have a dashboard which is taking 10 to 15 sec to load first time , but if I open the same dashboard again it just take 4-6 sec . I am on ES 1.7.1 , Kibana4.1.1
Second query which I have is regarding shards , I mean how many shards are good enough for my index . I am preparing weekly index that holds more than 4 million documents , what I observed,if I increase no of shards from 5 default to like 15 I got good response from ES and kibana .
Now question is how many shards are good enough , can I use 50 + shards ?