initial commit of idx_migration tool
initial commit of idx_migration tool

replay/metrictank,replay/metrictank,replay/metrictank,raintank/metrictank,raintank/raintank-metric,raintank/metrictank,raintank/raintank-metric,raintank/metrictank,raintank/metrictank,replay/metrictank,raintank/raintank-metric