modify `max-open-shards` dynamically`; fix #10
modify `max-open-shards` dynamically`; fix #10

jainishshah17/tutum-docker-influxdb,bogus-py/influxdb,sstarcher/influxdb,claydotio/tutum-docker-influxdb,norrland/influxdb,koksan83/influxdb,vinayakbhadage/docker-influxdb-collectd,aheusingfeld/influxdb,twendt/docker-influxdb,cagdascirit/docker-influxdb,MDrollette/influxdb,samartioli/influxdb,chosenken/influxdb,ReadyTalk/influxdb,nqn/influx-graphite,savoirfairelinux/docker-influxdb,tutumcloud/influxdb,timraymond/influxdb-docker