use of com.twitter.heron.metricsmgr.executor.SinkExecutor in project heron by twitter.
the class MetricsManager method initSinkExecutor.
private SinkExecutor initSinkExecutor(String sinkId) {
IMetricsSink sink;
String classname = (String) config.getConfigForSink(sinkId).get(MetricsSinksConfig.CONFIG_KEY_CLASSNAME);
try {
sink = (IMetricsSink) Class.forName(classname).newInstance();
} catch (InstantiationException e) {
throw new RuntimeException(e + " IMetricsSink class must have a no-arg constructor.");
} catch (IllegalAccessException e) {
throw new RuntimeException(e + " IMetricsSink class must be concrete.");
} catch (ClassNotFoundException e) {
throw new RuntimeException(e + " IMetricsSink class must be a class path.");
}
SlaveLooper sinkExecutorLoop = new SlaveLooper();
Communicator<MetricsRecord> executorInMetricsQueue = new Communicator<MetricsRecord>(null, sinkExecutorLoop);
// Since MetricsCollector is not thread-safe,
// we need to specify individual MetricsCollector and MultiCountMetric
// for different SinkExecutor
MetricsCollector sinkMetricsCollector = new MetricsCollector(sinkExecutorLoop, metricsQueue);
MultiCountMetric internalCounters = new MultiCountMetric();
sinkMetricsCollector.registerMetric(sinkId, internalCounters, heronMetricsExportIntervalSec);
// Set up the SinkContext
SinkContext sinkContext = new SinkContextImpl(topologyName, metricsmgrId, sinkId, internalCounters);
SinkExecutor sinkExecutor = new SinkExecutor(sinkId, sink, sinkExecutorLoop, executorInMetricsQueue, sinkContext);
sinkExecutor.setPropertyMap(config.getConfigForSink(sinkId));
return sinkExecutor;
}
use of com.twitter.heron.metricsmgr.executor.SinkExecutor in project heron by twitter.
the class MetricsManager method start.
public void start() {
LOG.info("Starting the Executors.");
// Execute the SinkExecutor in separate threads
for (SinkExecutor executor : sinkExecutors.values()) {
executors.execute(executor);
}
// The MetricsManagerServer would run in the main thread
// We do it in the final step since it would await the main thread
LOG.info("Starting Metrics Manager Server");
metricsManagerServer.start();
metricsManagerServerLoop.loop();
}
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