check if reverse socket still viable when cleaning up channels.
check if reverse socket still viable when cleaning up channels.

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