Examples of java.lang.management.MemoryUsage

java.lang.management.MemoryUsage
| + +//////////////// | + +----------------------------------------------+ |--------| init |---------------| used |---------------------------| committed |----------------------------------------------| max
MXBean Mapping
MemoryUsage is mapped to a {@link CompositeData CompositeData}with attributes as specified in the {@link #from from} method. @author Mandy Chung @version 1.17, 11/17/05 @since 1.5

    long inodes = fsn.dir.totalInodes();
    long blocks = fsn.getBlocksTotal();
    long maxobjects = fsn.getMaxObjects();
    MemoryMXBean mem = ManagementFactory.getMemoryMXBean();


    MemoryUsage heap = mem.getHeapMemoryUsage();
    MemoryUsage nonHeap = mem.getNonHeapMemoryUsage();


    long totalHeap = heap.getUsed();
    long maxHeap = heap.getMax();
    long commitedHeap = heap.getCommitted();
    long initHeap = heap.getInit();


    long totalNonHeap = nonHeap.getUsed();
    long maxNonHeap = nonHeap.getMax();
    long commitedNonHeap = nonHeap.getCommitted();


    long used = (totalHeap * 100)/maxHeap;
    long usedNonHeap = (totalNonHeap * 100) / maxNonHeap;

View Full Code Here

        // Uptime
        long secondsUp = probe.getUptime() / 1000;
        outs.printf("%-17s: %d%n", "Uptime (seconds)", secondsUp);


        // Memory usage
        MemoryUsage heapUsage = probe.getHeapMemoryUsage();
        double memUsed = (double)heapUsage.getUsed() / (1024 * 1024);
        double memMax = (double)heapUsage.getMax() / (1024 * 1024);
        outs.printf("%-17s: %.2f / %.2f%n", "Heap Memory (MB)", memUsed, memMax);


        // Data Center/Rack
        outs.printf("%-17s: %s%n", "Data Center", probe.getDataCenter());
        outs.printf("%-17s: %s%n", "Rack", probe.getRack());

View Full Code Here

    TreeMap<byte [], HServerLoad.RegionLoad> regionLoads =
      new TreeMap<byte [], HServerLoad.RegionLoad>(Bytes.BYTES_COMPARATOR);
    for (HRegion region: regions) {
      regionLoads.put(region.getRegionName(), createRegionLoad(region));
    }
    MemoryUsage memory =
      ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
    return new HServerLoad(requestCount.get(),(int)metrics.getRequests(),
      (int)(memory.getUsed() / 1024 / 1024),
      (int) (memory.getMax() / 1024 / 1024), regionLoads,
      this.hlog.getCoprocessorHost().getCoprocessors());
  }

View Full Code Here

    TreeMap<byte [], HServerLoad.RegionLoad> regionLoads =
      new TreeMap<byte [], HServerLoad.RegionLoad>(Bytes.BYTES_COMPARATOR);
    for (HRegion region: regions) {
      regionLoads.put(region.getRegionName(), createRegionLoad(region));
    }
    MemoryUsage memory =
      ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
    return new HServerLoad(requestCount.get(),(int)metrics.getRequests(),
      (int)(memory.getUsed() / 1024 / 1024),
      (int) (memory.getMax() / 1024 / 1024), regionLoads,
      this.hlog.getCoprocessorHost().getCoprocessors());
  }

View Full Code Here

    TreeMap<byte [], HServerLoad.RegionLoad> regionLoads =
      new TreeMap<byte [], HServerLoad.RegionLoad>(Bytes.BYTES_COMPARATOR);
    for (HRegion region: regions) {
      regionLoads.put(region.getRegionName(), createRegionLoad(region));
    }
    MemoryUsage memory =
      ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
    return new HServerLoad(requestCount.get(),(int)metrics.getRequests(),
      (int)(memory.getUsed() / 1024 / 1024),
      (int) (memory.getMax() / 1024 / 1024), regionLoads,
      this.hlog.getCoprocessorHost().getCoprocessors());
  }

View Full Code Here

      throw new IllegalArgumentException(HConstants.HFILE_BLOCK_CACHE_SIZE_KEY +
        " must be between 0.0 and 1.0, and not > 1.0");
    }


    // Calculate the amount of heap to give the heap.
    MemoryUsage mu = ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
    long cacheSize = (long)(mu.getMax() * cachePercentage);
    int blockSize = conf.getInt("hbase.offheapcache.minblocksize",
        HFile.DEFAULT_BLOCKSIZE);
    long offHeapCacheSize =
      (long) (conf.getFloat("hbase.offheapcache.percentage", (float) 0) *
          DirectMemoryUtils.getDirectMemorySize());

View Full Code Here

    final AtomicBoolean fail = new AtomicBoolean();


    System.gc();
    System.gc();
    MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
    MemoryUsage usage = memoryMXBean.getHeapMemoryUsage();
    long max = usage.getMax();
    long used = usage.getUsed();
    long limit = (long) (max * 0.80);
    long difference = limit - used;
    byte[] bufferToFillHeap = new byte[(int) (difference - _20MB)];
    new Thread(new Runnable() {
      @Override

View Full Code Here

        long startTime = _gcInfo.getStartTime();
        long endTime = _gcInfo.getEndTime();
        Map<String, MemoryUsage> usageBeforeGc = _gcInfo.getUsageBeforeGc();
        Map<String, MemoryUsage> usageAfterGc = _gcInfo.getUsageAfterGc();
        
        MemoryUsage before = usageBeforeGc.get(CMS_OLD_GEN);
        long usedBefore = before.getUsed();
        
        MemoryUsage after = usageAfterGc.get(CMS_OLD_GEN);
        long usedAfter = after.getUsed();
        
        long totalTime = endTime - startTime;
        LOG.info("totalTime spent in GC [{0} ms] collected [{1} bytes]", totalTime, (usedBefore - usedAfter));
        MemoryUsage heapMemoryUsage = _memoryMXBean.getHeapMemoryUsage();
        long max = heapMemoryUsage.getMax();
        long used = heapMemoryUsage.getUsed();
        long upperLimit = (long) (max * _ratio);
        if (used > upperLimit) {
          LOG.error("----- WARNING !!!! - Heap used [{0}] over limit of [{1}], taking action to avoid an OOM error.", used,
              upperLimit);
          synchronized (_actions) {

View Full Code Here

        // to send.  If we fail talking to the master, then we'll sleep below
        // on poll of the outboundMsgs blockingqueue.
        if ((now - lastMsg) >= msgInterval || !outboundMessages.isEmpty()) {
          try {
            doMetrics();
            MemoryUsage memory =
              ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
            HServerLoad hsl = new HServerLoad(requestCount.get(),
              (int)(memory.getUsed()/1024/1024),
              (int)(memory.getMax()/1024/1024));
            for (HRegion r: onlineRegions.values()) {
              hsl.addRegionInfo(createRegionLoad(r));
            }
            this.serverInfo.setLoad(hsl);
            this.requestCount.set(0);

View Full Code Here

    MapWritable result = null;
    long lastMsg = 0;
    while(!stopRequested.get()) {
      try {
        this.requestCount.set(0);
        MemoryUsage memory =
          ManagementFactory.getMemoryMXBean().getHeapMemoryUsage();
        HServerLoad hsl = new HServerLoad(0, (int)memory.getUsed()/1024/1024,
          (int)memory.getMax()/1024/1024);
        this.serverInfo.setLoad(hsl);
        if (LOG.isDebugEnabled())
          LOG.debug("sending initial server load: " + hsl);
        lastMsg = System.currentTimeMillis();
        boolean startCodeOk = false;

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of java.lang.management.MemoryUsage

be.bagofwords.application.memory.MemoryManager$CleanupObjectsThread

com.ajjpj.asysmon.measure.scalar.AJmxGcMeasurerer$GcNotificationListener

com.alee.extended.statusbar.WebMemoryBar

com.caucho.db.block.BlockManager

com.caucho.server.resin.MemoryAdmin

com.caucho.util.MemoryPoolAdapter

com.cloudera.flume.util.FlumeVMInfo

com.codahale.metrics.jvm.MemoryUsageGaugeSet

com.ericsson.util.os.OSUtilSunspecific

com.foundationdb.util.GCMonitor

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.

Examples of java.lang.management.MemoryUsage

MXBean Mapping

Related Classes of java.lang.management.MemoryUsage