select {
		case traceCh <- b:
		default:
			// Do not block on slow receivers.
			// Just recycle the buffer.
			grid.PutByteBuffer(b)
		}
		return nil
	})
}

func (client *peerRESTClient) doListen(ctx context.Context, listenCh chan<- []byte, v url.Values) {
	conn := client.gridConn()
	if conn == nil {
		return
	}
	st, err := listenRPC.Call(ctx, conn, grid.NewURLValuesWith(v))
	if err != nil {
		return