package com.alibaba.jstorm.daemon.nimbus.metric.merge;
import java.util.HashMap;
import java.util.Map;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.alibaba.jstorm.daemon.nimbus.metric.MetricEvent;
import com.alibaba.jstorm.daemon.nimbus.metric.update.UpdateEvent;
import com.alibaba.jstorm.metric.AsmWindow;
import com.alibaba.jstorm.metric.JStormMetrics;
import com.alibaba.jstorm.metric.MetricType;
import com.alibaba.jstorm.metric.MetricUtils;
import com.alibaba.jstorm.metric.TopologyMetricContext;
import com.alibaba.jstorm.utils.JStormUtils;
import com.alibaba.jstorm.utils.TimeUtils;
import backtype.storm.generated.MetricInfo;
import backtype.storm.generated.MetricSnapshot;
import backtype.storm.generated.TopologyMetric;
public class MergeEvent extends MetricEvent{
private static final Logger LOG = LoggerFactory.getLogger(MergeEvent.class);
@Override
public void run() {
int secOffset = TimeUtils.secOffset();
int offset = 55;
if (secOffset < offset) {
JStormUtils.sleepMs((offset - secOffset) * 1000);
} else if (secOffset == offset) {
// do nothing
} else {
JStormUtils.sleepMs((60 - secOffset + offset) * 1000);
}
LOG.debug("cluster metrics force upload.");
mergeAndUploadClusterMetrics();
}
private void mergeAndUploadClusterMetrics() {
TopologyMetricContext clusterContext = context.getClusterTopologyMetricContext();
TopologyMetric tpMetric = clusterContext.mergeMetrics();
if (tpMetric == null) {
tpMetric = MetricUtils.mkTopologyMetric();
tpMetric.set_topologyMetric(MetricUtils.mkMetricInfo());
}
//reset snapshots metric id
MetricInfo clusterMetrics = tpMetric.get_topologyMetric();
Map<String, Long> metricName2Id = clusterContext.getMemMeta();
for (Map.Entry<String, Map<Integer, MetricSnapshot>> entry : clusterMetrics.get_metrics().entrySet()) {
String metricName = entry.getKey();
MetricType metricType = MetricUtils.metricType(metricName);
Long metricId = metricName2Id.get(metricName);
for (Map.Entry<Integer, MetricSnapshot> metric : entry.getValue().entrySet()) {
MetricSnapshot snapshot = metric.getValue();
snapshot.set_metricId(metricId);
if (metricType == MetricType.HISTOGRAM) {
snapshot.set_points(new byte[0]);
}
// entry.getValue().put(metric.getKey(), snapshot);
}
}
//fill the unacquired metrics with zero
long ts = System.currentTimeMillis();
for (Map.Entry<String, Long> entry : metricName2Id.entrySet()) {
String name = entry.getKey();
if (!clusterMetrics.get_metrics().containsKey(name)) {
Map<Integer, MetricSnapshot> metric = new HashMap<>();
MetricType type = MetricUtils.metricType(name);
metric.put(AsmWindow.M1_WINDOW, new MetricSnapshot(entry.getValue(), ts, type.getT()));
clusterMetrics.put_to_metrics(name, metric);
}
}
//upload to cache
UpdateEvent.pushEvent(JStormMetrics.CLUSTER_METRIC_KEY, tpMetric);
LOG.debug("send update event for cluster metrics, size : {}", clusterMetrics.get_metrics_size());
}
}