case UNAVAILABLE:
assert err.error instanceof UnavailableException;
if (manager.configuration().isMetricsEnabled())
metrics().getErrorMetrics().getUnavailables().inc();
UnavailableException ue = (UnavailableException)err.error;
ConsistencyLevel ucl = ConsistencyLevel.from(ue.consistency);
retry = retryPolicy.onUnavailable(query, ucl, ue.required, ue.alive, queryRetries);
break;
case OVERLOADED:
// Try another node