private static ContentNodeStats.BucketSpaceStats getStatsForContentNode(ClusterStatsAggregator statsAggregator,
                                                                                NodeInfo nodeInfo,
                                                                                String bucketSpace) {
            ContentNodeStats nodeStats = statsAggregator.getAggregatedStats().getStats().getNodeStats(nodeInfo.getNodeIndex());
            if (nodeStats != null) {
                return nodeStats.getBucketSpace(bucketSpace);
            }
            return null;
        }
Renders web page with cluster status.
clustercontroller-core/src/main/java/com/yahoo/vespa/clustercontroller/core/status/statuspage/VdsClusterHtmlRenderer.java