fix unit for ES timings
fix unit for ES timings

raintank/raintank-metric,raintank/raintank-metric,replay/metrictank,raintank/metrictank,raintank/metrictank,raintank/metrictank,raintank/metrictank,replay/metrictank,raintank/raintank-metric,replay/metrictank,replay/metrictank,OOM-Killer/metrictank,OOM-Killer/metrictank,OOM-Killer/metrictank