ignore update_capabilites if unsupported

catch and carry on.

Closes: #996

gnocchi/cli/metricd.py

@@ -242,8 +242,12 @@ class MetricProcessor(MetricProcessBase):
                 LOG.error("Unexpected error processing assigned job",
                           exc_info=True)
         LOG.debug("%d metrics processed from %d sacks", m_count, s_count)
-        # Update statistics
-        self.coord.update_capabilities(self.GROUP_ID, self.store.statistics)
+        try:
+            # Update statistics
+            self.coord.update_capabilities(self.GROUP_ID,
+                                           self.store.statistics)
+        except tooz.NotImplemented:
+            pass
         if sacks == self._get_sacks_to_process():
             # We just did a full scan of all sacks, reset the timer
             self._last_full_sack_scan.reset()