Examples with GarbageCollectorMXBean java.lang.management.GarbageCollectorMXBean used on opensource projects

Example 1 with GarbageCollectorMXBean

use of java.lang.management.GarbageCollectorMXBean in project hadoop by apache.

the class JvmPauseMonitor method getGcTimes.

private Map<String, GcTimes> getGcTimes() {
    Map<String, GcTimes> map = Maps.newHashMap();
    List<GarbageCollectorMXBean> gcBeans = ManagementFactory.getGarbageCollectorMXBeans();
    for (GarbageCollectorMXBean gcBean : gcBeans) {
        map.put(gcBean.getName(), new GcTimes(gcBean));
    }
    return map;
}

Example 2 with GarbageCollectorMXBean

use of java.lang.management.GarbageCollectorMXBean in project flink by apache.

the class TaskExecutorMetricsInitializer method instantiateGarbageCollectorMetrics.

private static void instantiateGarbageCollectorMetrics(MetricGroup metrics) {
    List<GarbageCollectorMXBean> garbageCollectors = ManagementFactory.getGarbageCollectorMXBeans();
    for (final GarbageCollectorMXBean garbageCollector : garbageCollectors) {
        MetricGroup gcGroup = metrics.addGroup(garbageCollector.getName());
        gcGroup.<Long, Gauge<Long>>gauge("Count", new Gauge<Long>() {

            @Override
            public Long getValue() {
                return garbageCollector.getCollectionCount();
            }
        });
        gcGroup.<Long, Gauge<Long>>gauge("Time", new Gauge<Long>() {

            @Override
            public Long getValue() {
                return garbageCollector.getCollectionTime();
            }
        });
    }
}

Example 3 with GarbageCollectorMXBean

use of java.lang.management.GarbageCollectorMXBean in project flink by apache.

the class MemoryLogger method getGarbageCollectorStatsAsString.

/**
	 * Gets the garbage collection statistics from the JVM.
	 *
	 * @param gcMXBeans The collection of garbage collector beans.
	 * @return A string denoting the number of times and total elapsed time in garbage collection.
	 */
public static String getGarbageCollectorStatsAsString(List<GarbageCollectorMXBean> gcMXBeans) {
    StringBuilder bld = new StringBuilder("Garbage collector stats: ");
    for (GarbageCollectorMXBean bean : gcMXBeans) {
        bld.append('[').append(bean.getName()).append(", GC TIME (ms): ").append(bean.getCollectionTime());
        bld.append(", GC COUNT: ").append(bean.getCollectionCount()).append(']');
        bld.append(", ");
    }
    if (!gcMXBeans.isEmpty()) {
        bld.setLength(bld.length() - 2);
    }
    return bld.toString();
}

Example 4 with GarbageCollectorMXBean

use of java.lang.management.GarbageCollectorMXBean in project flink by apache.

the class MetricUtils method instantiateGarbageCollectorMetrics.

private static void instantiateGarbageCollectorMetrics(MetricGroup metrics) {
    List<GarbageCollectorMXBean> garbageCollectors = ManagementFactory.getGarbageCollectorMXBeans();
    for (final GarbageCollectorMXBean garbageCollector : garbageCollectors) {
        MetricGroup gcGroup = metrics.addGroup(garbageCollector.getName());
        gcGroup.gauge("Count", new Gauge<Long>() {

            @Override
            public Long getValue() {
                return garbageCollector.getCollectionCount();
            }
        });
        gcGroup.gauge("Time", new Gauge<Long>() {

            @Override
            public Long getValue() {
                return garbageCollector.getCollectionTime();
            }
        });
    }
}

Example 5 with GarbageCollectorMXBean

use of java.lang.management.GarbageCollectorMXBean in project hbase by apache.

the class JvmPauseMonitor method getGcTimes.

private Map<String, GcTimes> getGcTimes() {
    Map<String, GcTimes> map = Maps.newHashMap();
    List<GarbageCollectorMXBean> gcBeans = ManagementFactory.getGarbageCollectorMXBeans();
    for (GarbageCollectorMXBean gcBean : gcBeans) {
        map.put(gcBean.getName(), new GcTimes(gcBean));
    }
    return map;
}