private void addStatePendingTime(long currentTime, NodeInfo nodeInfo, HtmlTable.Row row) {
            if (nodeInfo.getLatestNodeStateRequestTime() == null) {
                row.addCell(new HtmlTable.Cell("-").addProperties(CENTERED_PROPERTY));
            } else {
                row.addCell(new HtmlTable.Cell(HtmlTable.escape(RealTimer.printDuration(
                        currentTime - nodeInfo.getLatestNodeStateRequestTime()))));
            }
        }
Renders web page with cluster status.
clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/status/statuspage/VdsClusterHtmlRenderer.java