Influxdb > why my shards are not deleted

influxdb

#1

I would like to know why my shards are still stored

When i run show shards command, I get shards from december 2017, even if their expiry time is set to december 2017 (see picture below).

I also noticed that directories corresponding to shards in /var/lib/influxdb/data/telegraf/autogen are not deleted !

I would like to knwo also, if I create many retention policies, does it mean that each retention policy will store data in its own directory, so I will have data duplication ?