private static void checkGarbageCollectionNotificationInfoContent(
      GarbageCollectionNotificationInfo notif) throws Exception {
    System.out.println("GC notification for " + notif.getGcName());
    System.out.print("Action: " + notif.getGcAction());
    System.out.println(" Cause: " + notif.getGcCause());
    GcInfo info = notif.getGcInfo();
    System.out.print("GC Info #" + info.getId());
    System.out.print(" start:" + info.getStartTime());
    System.out.print(" end:" + info.getEndTime());
    System.out.println(" (" + info.getDuration() + "ms)");
    Map<String, MemoryUsage> usage = info.getMemoryUsageBeforeGc();

    List<String> pnames = new ArrayList<String>();
    for (Map.Entry entry : usage.entrySet()) {
      String poolname = (String) entry.getKey();
      pnames.add(poolname);
      MemoryUsage busage = (MemoryUsage) entry.getValue();
      MemoryUsage ausage = (MemoryUsage) info.getMemoryUsageAfterGc().get(poolname);
      if (ausage == null) {
        throw new RuntimeException("After Gc Memory does not exist" + " for " + poolname);
      }
      System.out.println("Usage for pool " + poolname);
      System.out.println("   Before GC: " + busage);
      System.out.println("   After GC: " + ausage);
    }

    // check if memory usage for all memory pools are returned
    List<MemoryPoolMXBean> pools = ManagementFactory.getMemoryPoolMXBeans();
    for (MemoryPoolMXBean p : pools) {
      if (!pnames.contains(p.getName())) {
        throw new RuntimeException(
            "GcInfo does not contain " + "memory usage for pool " + p.getName());
      }
    }
  }
Example #2
0
  /**
   * Returns a map of MBeans with ObjectName as the key and MBeanInfo value of a given domain. If
   * domain is <tt>null</tt>, all MBeans are returned. If no MBean found, an empty map is returned.
   */
  public Map<ObjectName, MBeanInfo> getMBeans(String domain) throws IOException {

    ObjectName name = null;
    if (domain != null) {
      try {
        name = new ObjectName(domain + ":*");
      } catch (MalformedObjectNameException e) {
        // should not reach here
        assert (false);
      }
    }
    Set<ObjectName> mbeans = server.queryNames(name, null);
    Map<ObjectName, MBeanInfo> result = new HashMap<ObjectName, MBeanInfo>(mbeans.size());
    Iterator<ObjectName> iterator = mbeans.iterator();
    while (iterator.hasNext()) {
      Object object = iterator.next();
      if (object instanceof ObjectName) {
        ObjectName o = (ObjectName) object;
        try {
          MBeanInfo info = server.getMBeanInfo(o);
          result.put(o, info);
        } catch (IntrospectionException e) {
          // TODO: should log the error
        } catch (InstanceNotFoundException e) {
          // TODO: should log the error
        } catch (ReflectionException e) {
          // TODO: should log the error
        }
      }
    }
    return result;
  }
Example #3
0
 /** Gets a proxy client for a given local virtual machine. */
 public static ProxyClient getProxyClient(LocalVirtualMachine lvm) throws IOException {
   final String key = getCacheKey(lvm);
   ProxyClient proxyClient = cache.get(key);
   if (proxyClient == null) {
     proxyClient = new ProxyClient(lvm);
     cache.put(key, proxyClient);
   }
   return proxyClient;
 }
Example #4
0
 /** Gets a proxy client for a given "hostname:port". */
 public static ProxyClient getProxyClient(
     String hostName, int port, String userName, String password) throws IOException {
   final String key = getCacheKey(hostName, port, userName, password);
   ProxyClient proxyClient = cache.get(key);
   if (proxyClient == null) {
     proxyClient = new ProxyClient(hostName, port, userName, password);
     cache.put(key, proxyClient);
   }
   return proxyClient;
 }
 List<Edge> detectDeadlock() {
   Collection<Map<String, MapLockState>> collection =
       (Collection<Map<String, MapLockState>>) callOnAllMembers(new LockInformationCallable());
   List<Vertex> graph = new ArrayList<Vertex>();
   for (Map<String, MapLockState> mapLockStateMap : collection) {
     for (MapLockState map : mapLockStateMap.values()) {
       for (Object key : map.getLockOwners().keySet()) {
         Vertex owner = new Vertex(map.getLockOwners().get(key));
         Vertex requester = new Vertex(map.getLockRequested().get(key));
         int index = graph.indexOf(owner);
         if (index >= 0) {
           owner = graph.get(index);
         } else {
           graph.add(owner);
         }
         index = graph.indexOf(requester);
         if (index >= 0) {
           requester = graph.get(index);
         } else {
           graph.add(requester);
         }
         Edge edge = new Edge();
         edge.from = requester;
         edge.to = owner;
         edge.key = key;
         edge.mapName = map.getMapName();
         edge.globalLock = map.isGlobalLock();
         owner.addIncoming(edge);
         requester.addOutgoing(edge);
       }
     }
   }
   List<Edge> list = new ArrayList<Edge>();
   if (graph != null && graph.size() > 0) {
     try {
       graph.get(0).visit(list);
     } catch (RuntimeException e) {
     }
   }
   return list;
 }
Example #6
0
 private synchronized NameValueMap getCachedAttributes(ObjectName objName, Set<String> attrNames)
     throws InstanceNotFoundException, ReflectionException, IOException {
   NameValueMap values = cachedValues.get(objName);
   if (values != null && values.keySet().containsAll(attrNames)) {
     return values;
   }
   attrNames = new TreeSet<String>(attrNames);
   Set<String> oldNames = cachedNames.get(objName);
   if (oldNames != null) {
     attrNames.addAll(oldNames);
   }
   values = new NameValueMap();
   final AttributeList attrs =
       conn.getAttributes(objName, attrNames.toArray(new String[attrNames.size()]));
   for (Attribute attr : attrs.asList()) {
     values.put(attr.getName(), attr.getValue());
   }
   cachedValues.put(objName, values);
   cachedNames.put(objName, attrNames);
   return values;
 }
Example #7
0
  private void tryConnect(boolean requireRemoteSSL) throws IOException {
    if (jmxUrl == null && "localhost".equals(hostName) && port == 0) {
      // Monitor self
      this.jmxc = null;
      this.mbsc = ManagementFactory.getPlatformMBeanServer();
      this.server = Snapshot.newSnapshot(mbsc);
    } else {
      // Monitor another process
      if (lvm != null) {
        if (!lvm.isManageable()) {
          lvm.startManagementAgent();
          if (!lvm.isManageable()) {
            // FIXME: what to throw
            throw new IOException(lvm + "not manageable");
          }
        }
        if (this.jmxUrl == null) {
          this.jmxUrl = new JMXServiceURL(lvm.connectorAddress());
        }
      }
      Map<String, Object> env = new HashMap<String, Object>();
      if (requireRemoteSSL) {
        env.put("jmx.remote.x.check.stub", "true");
      }
      // Need to pass in credentials ?
      if (userName == null && password == null) {
        if (isVmConnector()) {
          // Check for SSL config on reconnection only
          if (stub == null) {
            checkSslConfig();
          }
          this.jmxc = new RMIConnector(stub, null);
          jmxc.connect(env);
        } else {
          this.jmxc = JMXConnectorFactory.connect(jmxUrl, env);
        }
      } else {
        env.put(JMXConnector.CREDENTIALS, new String[] {userName, password});
        if (isVmConnector()) {
          // Check for SSL config on reconnection only
          if (stub == null) {
            checkSslConfig();
          }
          this.jmxc = new RMIConnector(stub, null);
          jmxc.connect(env);
        } else {
          this.jmxc = JMXConnectorFactory.connect(jmxUrl, env);
        }
      }
      this.mbsc = jmxc.getMBeanServerConnection();
      this.server = Snapshot.newSnapshot(mbsc);
    }
    this.isDead = false;

    try {
      ObjectName on = new ObjectName(THREAD_MXBEAN_NAME);
      this.hasPlatformMXBeans = server.isRegistered(on);
      this.hasHotSpotDiagnosticMXBean =
          server.isRegistered(new ObjectName(HOTSPOT_DIAGNOSTIC_MXBEAN_NAME));
      // check if it has 6.0 new APIs
      if (this.hasPlatformMXBeans) {
        MBeanOperationInfo[] mopis = server.getMBeanInfo(on).getOperations();
        // look for findDeadlockedThreads operations;
        for (MBeanOperationInfo op : mopis) {
          if (op.getName().equals("findDeadlockedThreads")) {
            this.supportsLockUsage = true;
            break;
          }
        }

        on = new ObjectName(COMPILATION_MXBEAN_NAME);
        this.hasCompilationMXBean = server.isRegistered(on);
      }
    } catch (MalformedObjectNameException e) {
      // should not reach here
      throw new InternalError(e.getMessage());
    } catch (IntrospectionException e) {
      InternalError ie = new InternalError(e.getMessage());
      ie.initCause(e);
      throw ie;
    } catch (InstanceNotFoundException e) {
      InternalError ie = new InternalError(e.getMessage());
      ie.initCause(e);
      throw ie;
    } catch (ReflectionException e) {
      InternalError ie = new InternalError(e.getMessage());
      ie.initCause(e);
      throw ie;
    }

    if (hasPlatformMXBeans) {
      // WORKAROUND for bug 5056632
      // Check if the access role is correct by getting a RuntimeMXBean
      getRuntimeMXBean();
    }
  }
  private void createRuntimeProps(MemberStateImpl memberState) {
    Runtime runtime = Runtime.getRuntime();
    ThreadMXBean threadMxBean = ManagementFactory.getThreadMXBean();
    RuntimeMXBean runtimeMxBean = ManagementFactory.getRuntimeMXBean();
    ClassLoadingMXBean clMxBean = ManagementFactory.getClassLoadingMXBean();
    MemoryMXBean memoryMxBean = ManagementFactory.getMemoryMXBean();
    MemoryUsage heapMemory = memoryMxBean.getHeapMemoryUsage();
    MemoryUsage nonHeapMemory = memoryMxBean.getNonHeapMemoryUsage();

    Map<String, Long> map = new HashMap<String, Long>();
    map.put(
        "runtime.availableProcessors", Integer.valueOf(runtime.availableProcessors()).longValue());
    map.put("date.startTime", runtimeMxBean.getStartTime());
    map.put("seconds.upTime", runtimeMxBean.getUptime());

    map.put("memory.maxMemory", runtime.maxMemory());
    map.put("memory.freeMemory", runtime.freeMemory());
    map.put("memory.totalMemory", runtime.totalMemory());
    map.put("memory.heapMemoryMax", heapMemory.getMax());
    map.put("memory.heapMemoryUsed", heapMemory.getUsed());
    map.put("memory.nonHeapMemoryMax", nonHeapMemory.getMax());
    map.put("memory.nonHeapMemoryUsed", nonHeapMemory.getUsed());
    map.put("runtime.totalLoadedClassCount", clMxBean.getTotalLoadedClassCount());
    map.put(
        "runtime.loadedClassCount", Integer.valueOf(clMxBean.getLoadedClassCount()).longValue());
    map.put("runtime.unloadedClassCount", clMxBean.getUnloadedClassCount());
    map.put("runtime.totalStartedThreadCount", threadMxBean.getTotalStartedThreadCount());
    map.put("runtime.threadCount", Integer.valueOf(threadMxBean.getThreadCount()).longValue());
    map.put(
        "runtime.peakThreadCount", Integer.valueOf(threadMxBean.getPeakThreadCount()).longValue());
    map.put(
        "runtime.daemonThreadCount",
        Integer.valueOf(threadMxBean.getDaemonThreadCount()).longValue());
    memberState.setRuntimeProps(map);
  }