Prometheus TSDB

Oldest record in Prometheus

cd /home/costa/data/prometheus-data ;grep -r minTime --include meta.json | awk '{print $3}' | sort | head -n1 | rev| cut -c5- | rev | { read gmt ; date -d "@$gmt" ; }

snapshot https://gist.github.com/ksingh7/d5e4414d92241e0802e59fa4c585b98b