Don't try to be clever with cleanup. It's too tricky to get it right.

lib/roles/reaper.js

@@ -56,18 +56,14 @@ module.exports = function(options) {
     quit.resolve()
   })
 
-  quit.promise.finally(function() {
-    clearInterval(timer)
-    dbapi.close()
-      .timeout(10000)
-      .then(function() {
-        log.info('Quit after cleanup')
-      })
-      .catch(Promise.TimeoutError, function() {
-        log.error('Cleanup operation timed out, closing unsafely')
-        process.exit(1)
-      })
-  })
+  quit.promise
+    .then(function() {
+      process.exit(0)
+    })
+    .catch(function(err) {
+      log.fatal('Error caused quit: ', err.stack)
+      process.exit(1)
+    })
 
   log.info('Reaping devices with no heartbeat')
 }