private void logRunException(final Exception e) {
    if (shutDown) {
      getLogger().debug("Exception occurred during shutdown", e);
    } else {
      getLogger().warn("Problem handling memcached IO", e);
    }
  }
Log a exception to different levels depending on the state.

Exceptions get logged at debug level when happening during shutdown, but
at warning level when operating normally.

@param e the exception to log.
src/main/java/net/spy/memcached/MemcachedConnection.java