upd: timer_interval calc, negative flush interval message to debug
upd: timer_interval calc, negative flush interval message to debug

maier/nad,circonus-labs/nad,HeinrichHartmann/nad,circonus-labs/nad,circonus-labs/nad,maier/nad,maier/nad,maier/nad,circonus-labs/nad,HeinrichHartmann/nad,maier/nad,HeinrichHartmann/nad,HeinrichHartmann/nad,HeinrichHartmann/nad,maier/nad,circonus-labs/nad,circonus-labs/nad,HeinrichHartmann/nad