set doc count size to 1000 to improve ES query performance.
set doc count size to 1000 to improve ES query performance.

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