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

Example 46 with MemoryUsage

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

the class HRegionServer method buildServerLoad.

ClusterStatusProtos.ServerLoad buildServerLoad(long reportStartTime, long reportEndTime) throws IOException {
    // We're getting the MetricsRegionServerWrapper here because the wrapper computes requests
    // per second, and other metrics  As long as metrics are part of ServerLoad it's best to use
    // the wrapper to compute those numbers in one place.
    // In the long term most of these should be moved off of ServerLoad and the heart beat.
    // Instead they should be stored in an HBase table so that external visibility into HBase is
    // improved; Additionally the load balancer will be able to take advantage of a more complete
    // history.
    MetricsRegionServerWrapper regionServerWrapper = metricsRegionServer.getRegionServerWrapper();
    Collection<Region> regions = getOnlineRegionsLocalContext();
    long usedMemory = -1L;
    long maxMemory = -1L;
    final MemoryUsage usage = MemorySizeUtil.safeGetHeapMemoryUsage();
    if (usage != null) {
        usedMemory = usage.getUsed();
        maxMemory = usage.getMax();
    }
    ClusterStatusProtos.ServerLoad.Builder serverLoad = ClusterStatusProtos.ServerLoad.newBuilder();
    serverLoad.setNumberOfRequests((int) regionServerWrapper.getRequestsPerSecond());
    serverLoad.setTotalNumberOfRequests((int) regionServerWrapper.getTotalRequestCount());
    serverLoad.setUsedHeapMB((int) (usedMemory / 1024 / 1024));
    serverLoad.setMaxHeapMB((int) (maxMemory / 1024 / 1024));
    Set<String> coprocessors = getWAL(null).getCoprocessorHost().getCoprocessors();
    Builder coprocessorBuilder = Coprocessor.newBuilder();
    for (String coprocessor : coprocessors) {
        serverLoad.addCoprocessors(coprocessorBuilder.setName(coprocessor).build());
    }
    RegionLoad.Builder regionLoadBldr = RegionLoad.newBuilder();
    RegionSpecifier.Builder regionSpecifier = RegionSpecifier.newBuilder();
    for (Region region : regions) {
        if (region.getCoprocessorHost() != null) {
            Set<String> regionCoprocessors = region.getCoprocessorHost().getCoprocessors();
            Iterator<String> iterator = regionCoprocessors.iterator();
            while (iterator.hasNext()) {
                serverLoad.addCoprocessors(coprocessorBuilder.setName(iterator.next()).build());
            }
        }
        serverLoad.addRegionLoads(createRegionLoad(region, regionLoadBldr, regionSpecifier));
        for (String coprocessor : getWAL(region.getRegionInfo()).getCoprocessorHost().getCoprocessors()) {
            serverLoad.addCoprocessors(coprocessorBuilder.setName(coprocessor).build());
        }
    }
    serverLoad.setReportStartTime(reportStartTime);
    serverLoad.setReportEndTime(reportEndTime);
    if (this.infoServer != null) {
        serverLoad.setInfoServerPort(this.infoServer.getPort());
    } else {
        serverLoad.setInfoServerPort(-1);
    }
    // for the replicationLoad purpose. Only need to get from one service
    // either source or sink will get the same info
    ReplicationSourceService rsources = getReplicationSourceService();
    if (rsources != null) {
        // always refresh first to get the latest value
        ReplicationLoad rLoad = rsources.refreshAndGetReplicationLoad();
        if (rLoad != null) {
            serverLoad.setReplLoadSink(rLoad.getReplicationLoadSink());
            for (ClusterStatusProtos.ReplicationLoadSource rLS : rLoad.getReplicationLoadSourceList()) {
                serverLoad.addReplLoadSource(rLS);
            }
        }
    }
    return serverLoad.build();
}

Example 47 with MemoryUsage

use of java.lang.management.MemoryUsage in project cassandra by apache.

the class GCInspector method handleNotification.

public void handleNotification(final Notification notification, final Object handback) {
    String type = notification.getType();
    if (type.equals(GarbageCollectionNotificationInfo.GARBAGE_COLLECTION_NOTIFICATION)) {
        // retrieve the garbage collection notification information
        CompositeData cd = (CompositeData) notification.getUserData();
        GarbageCollectionNotificationInfo info = GarbageCollectionNotificationInfo.from(cd);
        String gcName = info.getGcName();
        GcInfo gcInfo = info.getGcInfo();
        long duration = gcInfo.getDuration();
        /*
             * The duration supplied in the notification info includes more than just
             * application stopped time for concurrent GCs. Try and do a better job coming up with a good stopped time
             * value by asking for and tracking cumulative time spent blocked in GC.
             */
        GCState gcState = gcStates.get(gcName);
        if (gcState.assumeGCIsPartiallyConcurrent) {
            long previousTotal = gcState.lastGcTotalDuration;
            long total = gcState.gcBean.getCollectionTime();
            gcState.lastGcTotalDuration = total;
            // may be zero for a really fast collection
            duration = total - previousTotal;
        }
        StringBuilder sb = new StringBuilder();
        sb.append(info.getGcName()).append(" GC in ").append(duration).append("ms.  ");
        long bytes = 0;
        Map<String, MemoryUsage> beforeMemoryUsage = gcInfo.getMemoryUsageBeforeGc();
        Map<String, MemoryUsage> afterMemoryUsage = gcInfo.getMemoryUsageAfterGc();
        for (String key : gcState.keys(info)) {
            MemoryUsage before = beforeMemoryUsage.get(key);
            MemoryUsage after = afterMemoryUsage.get(key);
            if (after != null && after.getUsed() != before.getUsed()) {
                sb.append(key).append(": ").append(before.getUsed());
                sb.append(" -> ");
                sb.append(after.getUsed());
                if (!key.equals(gcState.keys[gcState.keys.length - 1]))
                    sb.append("; ");
                bytes += before.getUsed() - after.getUsed();
            }
        }
        while (true) {
            State prev = state.get();
            if (state.compareAndSet(prev, new State(duration, bytes, prev)))
                break;
        }
        String st = sb.toString();
        if (GC_WARN_THRESHOLD_IN_MS != 0 && duration > GC_WARN_THRESHOLD_IN_MS)
            logger.warn(st);
        else if (duration > MIN_LOG_DURATION)
            logger.info(st);
        else if (logger.isTraceEnabled())
            logger.trace(st);
        if (duration > STAT_THRESHOLD)
            StatusLogger.log();
        // if we just finished an old gen collection and we're still using a lot of memory, try to reduce the pressure
        if (gcState.assumeGCIsOldGen)
            LifecycleTransaction.rescheduleFailedDeletions();
    }
}

Example 48 with MemoryUsage

use of java.lang.management.MemoryUsage in project databus by linkedin.

the class JavaStatsRequestProcessor method processHeapMemoryStats.

private void processHeapMemoryStats(DatabusRequest request) throws IOException {
    MemoryUsage memStats = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
    writeJsonObjectToResponse(memStats, request);
}

Example 49 with MemoryUsage

use of java.lang.management.MemoryUsage in project databus by linkedin.

the class JavaStatsRequestProcessor method processNonHeapMemoryStats.

private void processNonHeapMemoryStats(DatabusRequest request) throws IOException {
    MemoryUsage memStats = ManagementFactory.getMemoryMXBean().getNonHeapMemoryUsage();
    writeJsonObjectToResponse(memStats, request);
}

Example 50 with MemoryUsage

use of java.lang.management.MemoryUsage in project orientdb by orientechnologies.

the class SpeedTestData method startTimer.

/*
   * (non-Javadoc)
   * 
   * @see com.orientechnologies.common.test.SpeedTest#startTimer(java.lang.String)
   */
public void startTimer(final String iName) {
    Runtime.getRuntime().runFinalization();
    Runtime.getRuntime().gc();
    try {
        Thread.sleep(TIME_WAIT);
    } catch (InterruptedException e) {
    }
    final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    final MemoryUsage heapMemoryUsage = memoryMXBean.getHeapMemoryUsage();
    final MemoryUsage nonHeapMemoryUsage = memoryMXBean.getNonHeapMemoryUsage();
    currentTestName = iName;
    currentTestHeapCommittedMemory = heapMemoryUsage.getCommitted();
    currentTestHeapUsedMemory = heapMemoryUsage.getUsed();
    currentTestHeapMaxMemory = heapMemoryUsage.getMax();
    currentTestNonHeapCommittedMemory = nonHeapMemoryUsage.getCommitted();
    currentTestNonHeapUsedMemory = nonHeapMemoryUsage.getUsed();
    currentTestNonHeapMaxMemory = nonHeapMemoryUsage.getMax();
    System.out.println("-> Started the test of '" + currentTestName + "' (" + cycles + " cycles)");
    currentTestTimer = System.currentTimeMillis();
}