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);
}
/** Add class loading metrics. */
protected void addClassLoadingMetrics(Collection<Metric<?>> result) {
ClassLoadingMXBean classLoadingMxBean = ManagementFactory.getClassLoadingMXBean();
result.add(new Metric<Long>("classes", new Long(classLoadingMxBean.getLoadedClassCount())));
result.add(
new Metric<Long>(
"classes.loaded", new Long(classLoadingMxBean.getTotalLoadedClassCount())));
result.add(
new Metric<Long>("classes.unloaded", new Long(classLoadingMxBean.getUnloadedClassCount())));
}
public class Diagnostics {
private static final String PACKAGE = "org.apache.tomcat.util";
private static final String INDENT1 = " ";
private static final String INDENT2 = "\t";
private static final String INDENT3 = " ";
private static final String CRLF = "\r\n";
private static final String vminfoSystemProperty = "java.vm.info";
private static final SimpleDateFormat timeformat =
new SimpleDateFormat("yyyy-MM-dd HH:mm:ss.SSS");
/* Some platform MBeans */
private static final ClassLoadingMXBean classLoadingMXBean =
ManagementFactory.getClassLoadingMXBean();
private static final CompilationMXBean compilationMXBean =
ManagementFactory.getCompilationMXBean();
private static final OperatingSystemMXBean operatingSystemMXBean =
ManagementFactory.getOperatingSystemMXBean();
private static final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
private static final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
// XXX Not sure whether the following MBeans should better
// be retrieved on demand, i.e. whether they can change
// dynamically in the MBeanServer.
private static final LoggingMXBean loggingMXBean = LogManager.getLoggingMXBean();
private static final MemoryMXBean memoryMXBean = ManagementFactory.getMemoryMXBean();
private static final List<GarbageCollectorMXBean> garbageCollectorMXBeans =
ManagementFactory.getGarbageCollectorMXBeans();
private static final List<MemoryManagerMXBean> memoryManagerMXBeans =
ManagementFactory.getMemoryManagerMXBeans();
private static final List<MemoryPoolMXBean> memoryPoolMXBeans =
ManagementFactory.getMemoryPoolMXBeans();
/**
* Formats the thread dump header for one thread.
*
* @param ti the ThreadInfo describing the thread
* @return the formatted thread dump header
*/
private static String getThreadDumpHeader(ThreadInfo ti) {
StringBuilder sb = new StringBuilder("\"" + ti.getThreadName() + "\"");
sb.append(" Id=" + ti.getThreadId());
sb.append(" cpu=" + threadMXBean.getThreadCpuTime(ti.getThreadId()) + " ns");
sb.append(" usr="******" ns");
sb.append(" blocked " + ti.getBlockedCount() + " for " + ti.getBlockedTime() + " ms");
sb.append(" waited " + ti.getWaitedCount() + " for " + ti.getWaitedTime() + " ms");
if (ti.isSuspended()) {
sb.append(" (suspended)");
}
if (ti.isInNative()) {
sb.append(" (running in native)");
}
sb.append(CRLF);
sb.append(INDENT3 + "java.lang.Thread.State: " + ti.getThreadState());
sb.append(CRLF);
return sb.toString();
}
/**
* Formats the thread dump for one thread.
*
* @param ti the ThreadInfo describing the thread
* @return the formatted thread dump
*/
private static String getThreadDump(ThreadInfo ti) {
StringBuilder sb = new StringBuilder(getThreadDumpHeader(ti));
for (LockInfo li : ti.getLockedSynchronizers()) {
sb.append(INDENT2 + "locks " + li.toString() + CRLF);
}
boolean start = true;
StackTraceElement[] stes = ti.getStackTrace();
Object[] monitorDepths = new Object[stes.length];
MonitorInfo[] mis = ti.getLockedMonitors();
for (int i = 0; i < mis.length; i++) {
monitorDepths[mis[i].getLockedStackDepth()] = mis[i];
}
for (int i = 0; i < stes.length; i++) {
StackTraceElement ste = stes[i];
sb.append(INDENT2 + "at " + ste.toString() + CRLF);
if (start) {
if (ti.getLockName() != null) {
sb.append(INDENT2 + "- waiting on (a " + ti.getLockName() + ")");
if (ti.getLockOwnerName() != null) {
sb.append(" owned by " + ti.getLockOwnerName() + " Id=" + ti.getLockOwnerId());
}
sb.append(CRLF);
}
start = false;
}
if (monitorDepths[i] != null) {
MonitorInfo mi = (MonitorInfo) monitorDepths[i];
sb.append(
INDENT2
+ "- locked (a "
+ mi.toString()
+ ")"
+ " index "
+ mi.getLockedStackDepth()
+ " frame "
+ mi.getLockedStackFrame().toString());
sb.append(CRLF);
}
}
return sb.toString();
}
/**
* Formats the thread dump for a list of threads.
*
* @param tinfos the ThreadInfo array describing the thread list
* @return the formatted thread dump
*/
private static String getThreadDump(ThreadInfo[] tinfos) {
StringBuilder sb = new StringBuilder();
for (ThreadInfo tinfo : tinfos) {
sb.append(getThreadDump(tinfo));
sb.append(CRLF);
}
return sb.toString();
}
/**
* Check if any threads are deadlocked. If any, print the thread dump for those threads.
*
* @return a deadlock message and the formatted thread dump of the deadlocked threads
*/
private static String findDeadlock() {
ThreadInfo[] tinfos = null;
long[] ids = threadMXBean.findDeadlockedThreads();
if (ids != null) {
tinfos = threadMXBean.getThreadInfo(threadMXBean.findDeadlockedThreads(), true, true);
if (tinfos != null) {
StringBuilder sb = new StringBuilder("Deadlock found between the following threads:");
sb.append(CRLF);
sb.append(getThreadDump(tinfos));
return sb.toString();
}
}
return "";
}
/**
* Retrieves a formatted JVM thread dump. The given list of locales will be used to retrieve a
* StringManager.
*
* @param requestedLocales list of locales to use
* @return the formatted JVM thread dump
*/
public static String getThreadDump(Enumeration<Locale> requestedLocales) {
return getThreadDump(StringManager.getManager(PACKAGE, requestedLocales));
}
/**
* Retrieve a JVM thread dump formatted using the given StringManager.
*
* @param requestedSm the StringManager to use
* @return the formatted JVM thread dump
*/
private static String getThreadDump(StringManager requestedSm) {
StringBuilder sb = new StringBuilder();
synchronized (timeformat) {
sb.append(timeformat.format(new Date()));
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.threadDumpTitle"));
sb.append(" ");
sb.append(runtimeMXBean.getVmName());
sb.append(" (");
sb.append(runtimeMXBean.getVmVersion());
String vminfo = System.getProperty(vminfoSystemProperty);
if (vminfo != null) {
sb.append(" " + vminfo);
}
sb.append("):" + CRLF);
sb.append(CRLF);
ThreadInfo[] tis = threadMXBean.dumpAllThreads(true, true);
sb.append(getThreadDump(tis));
sb.append(findDeadlock());
return sb.toString();
}
/**
* Format contents of a MemoryUsage object.
*
* @param name a text prefix used in formatting
* @param usage the MemoryUsage object to format
* @return the formatted contents
*/
private static String formatMemoryUsage(String name, MemoryUsage usage) {
if (usage != null) {
StringBuilder sb = new StringBuilder();
sb.append(INDENT1 + name + " init: " + usage.getInit() + CRLF);
sb.append(INDENT1 + name + " used: " + usage.getUsed() + CRLF);
sb.append(INDENT1 + name + " committed: " + usage.getCommitted() + CRLF);
sb.append(INDENT1 + name + " max: " + usage.getMax() + CRLF);
return sb.toString();
}
return "";
}
/**
* Retrieves a formatted JVM information text. The given list of locales will be used to retrieve
* a StringManager.
*
* @param requestedLocales list of locales to use
* @return the formatted JVM information text
*/
public static String getVMInfo(Enumeration<Locale> requestedLocales) {
return getVMInfo(StringManager.getManager(PACKAGE, requestedLocales));
}
/**
* Retrieve a JVM information text formatted using the given StringManager.
*
* @param requestedSm the StringManager to use
* @return the formatted JVM information text
*/
private static String getVMInfo(StringManager requestedSm) {
StringBuilder sb = new StringBuilder();
synchronized (timeformat) {
sb.append(timeformat.format(new Date()));
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoRuntime"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "vmName: " + runtimeMXBean.getVmName() + CRLF);
sb.append(INDENT1 + "vmVersion: " + runtimeMXBean.getVmVersion() + CRLF);
sb.append(INDENT1 + "vmVendor: " + runtimeMXBean.getVmVendor() + CRLF);
sb.append(INDENT1 + "specName: " + runtimeMXBean.getSpecName() + CRLF);
sb.append(INDENT1 + "specVersion: " + runtimeMXBean.getSpecVersion() + CRLF);
sb.append(INDENT1 + "specVendor: " + runtimeMXBean.getSpecVendor() + CRLF);
sb.append(
INDENT1 + "managementSpecVersion: " + runtimeMXBean.getManagementSpecVersion() + CRLF);
sb.append(INDENT1 + "name: " + runtimeMXBean.getName() + CRLF);
sb.append(INDENT1 + "startTime: " + runtimeMXBean.getStartTime() + CRLF);
sb.append(INDENT1 + "uptime: " + runtimeMXBean.getUptime() + CRLF);
sb.append(
INDENT1 + "isBootClassPathSupported: " + runtimeMXBean.isBootClassPathSupported() + CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoOs"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "name: " + operatingSystemMXBean.getName() + CRLF);
sb.append(INDENT1 + "version: " + operatingSystemMXBean.getVersion() + CRLF);
sb.append(INDENT1 + "architecture: " + operatingSystemMXBean.getArch() + CRLF);
sb.append(
INDENT1 + "availableProcessors: " + operatingSystemMXBean.getAvailableProcessors() + CRLF);
sb.append(
INDENT1 + "systemLoadAverage: " + operatingSystemMXBean.getSystemLoadAverage() + CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoThreadMxBean"));
sb.append(":" + CRLF);
sb.append(
INDENT1
+ "isCurrentThreadCpuTimeSupported: "
+ threadMXBean.isCurrentThreadCpuTimeSupported()
+ CRLF);
sb.append(
INDENT1 + "isThreadCpuTimeSupported: " + threadMXBean.isThreadCpuTimeSupported() + CRLF);
sb.append(INDENT1 + "isThreadCpuTimeEnabled: " + threadMXBean.isThreadCpuTimeEnabled() + CRLF);
sb.append(
INDENT1
+ "isObjectMonitorUsageSupported: "
+ threadMXBean.isObjectMonitorUsageSupported()
+ CRLF);
sb.append(
INDENT1
+ "isSynchronizerUsageSupported: "
+ threadMXBean.isSynchronizerUsageSupported()
+ CRLF);
sb.append(
INDENT1
+ "isThreadContentionMonitoringSupported: "
+ threadMXBean.isThreadContentionMonitoringSupported()
+ CRLF);
sb.append(
INDENT1
+ "isThreadContentionMonitoringEnabled: "
+ threadMXBean.isThreadContentionMonitoringEnabled()
+ CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoThreadCounts"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "daemon: " + threadMXBean.getDaemonThreadCount() + CRLF);
sb.append(INDENT1 + "total: " + threadMXBean.getThreadCount() + CRLF);
sb.append(INDENT1 + "peak: " + threadMXBean.getPeakThreadCount() + CRLF);
sb.append(INDENT1 + "totalStarted: " + threadMXBean.getTotalStartedThreadCount() + CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoStartup"));
sb.append(":" + CRLF);
for (String arg : runtimeMXBean.getInputArguments()) {
sb.append(INDENT1 + arg + CRLF);
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoPath"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "bootClassPath: " + runtimeMXBean.getBootClassPath() + CRLF);
sb.append(INDENT1 + "classPath: " + runtimeMXBean.getClassPath() + CRLF);
sb.append(INDENT1 + "libraryPath: " + runtimeMXBean.getLibraryPath() + CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoClassLoading"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "loaded: " + classLoadingMXBean.getLoadedClassCount() + CRLF);
sb.append(INDENT1 + "unloaded: " + classLoadingMXBean.getUnloadedClassCount() + CRLF);
sb.append(INDENT1 + "totalLoaded: " + classLoadingMXBean.getTotalLoadedClassCount() + CRLF);
sb.append(INDENT1 + "isVerbose: " + classLoadingMXBean.isVerbose() + CRLF);
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoClassCompilation"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "name: " + compilationMXBean.getName() + CRLF);
sb.append(
INDENT1 + "totalCompilationTime: " + compilationMXBean.getTotalCompilationTime() + CRLF);
sb.append(
INDENT1
+ "isCompilationTimeMonitoringSupported: "
+ compilationMXBean.isCompilationTimeMonitoringSupported()
+ CRLF);
sb.append(CRLF);
for (MemoryManagerMXBean mbean : memoryManagerMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoMemoryManagers", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: " + mbean.isValid() + CRLF);
sb.append(INDENT1 + "mbean.getMemoryPoolNames: " + CRLF);
String[] names = mbean.getMemoryPoolNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2 + name + CRLF);
}
sb.append(CRLF);
}
for (GarbageCollectorMXBean mbean : garbageCollectorMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoGarbageCollectors", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: " + mbean.isValid() + CRLF);
sb.append(INDENT1 + "mbean.getMemoryPoolNames: " + CRLF);
String[] names = mbean.getMemoryPoolNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2 + name + CRLF);
}
sb.append(INDENT1 + "getCollectionCount: " + mbean.getCollectionCount() + CRLF);
sb.append(INDENT1 + "getCollectionTime: " + mbean.getCollectionTime() + CRLF);
sb.append(CRLF);
}
sb.append(requestedSm.getString("diagnostics.vmInfoMemory"));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isVerbose: " + memoryMXBean.isVerbose() + CRLF);
sb.append(
INDENT1
+ "getObjectPendingFinalizationCount: "
+ memoryMXBean.getObjectPendingFinalizationCount()
+ CRLF);
sb.append(formatMemoryUsage("heap", memoryMXBean.getHeapMemoryUsage()));
sb.append(formatMemoryUsage("non-heap", memoryMXBean.getNonHeapMemoryUsage()));
sb.append(CRLF);
for (MemoryPoolMXBean mbean : memoryPoolMXBeans) {
sb.append(requestedSm.getString("diagnostics.vmInfoMemoryPools", mbean.getName()));
sb.append(":" + CRLF);
sb.append(INDENT1 + "isValid: " + mbean.isValid() + CRLF);
sb.append(INDENT1 + "getType: " + mbean.getType() + CRLF);
sb.append(INDENT1 + "mbean.getMemoryManagerNames: " + CRLF);
String[] names = mbean.getMemoryManagerNames();
Arrays.sort(names);
for (String name : names) {
sb.append(INDENT2 + name + CRLF);
}
sb.append(INDENT1 + "isUsageThresholdSupported: " + mbean.isUsageThresholdSupported() + CRLF);
try {
sb.append(INDENT1 + "isUsageThresholdExceeded: " + mbean.isUsageThresholdExceeded() + CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
sb.append(
INDENT1
+ "isCollectionUsageThresholdSupported: "
+ mbean.isCollectionUsageThresholdSupported()
+ CRLF);
try {
sb.append(
INDENT1
+ "isCollectionUsageThresholdExceeded: "
+ mbean.isCollectionUsageThresholdExceeded()
+ CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getUsageThreshold: " + mbean.getUsageThreshold() + CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(INDENT1 + "getUsageThresholdCount: " + mbean.getUsageThresholdCount() + CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(
INDENT1 + "getCollectionUsageThreshold: " + mbean.getCollectionUsageThreshold() + CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
try {
sb.append(
INDENT1
+ "getCollectionUsageThresholdCount: "
+ mbean.getCollectionUsageThresholdCount()
+ CRLF);
} catch (UnsupportedOperationException ex) {
// IGNORE
}
sb.append(formatMemoryUsage("current", mbean.getUsage()));
sb.append(formatMemoryUsage("collection", mbean.getCollectionUsage()));
sb.append(formatMemoryUsage("peak", mbean.getPeakUsage()));
sb.append(CRLF);
}
sb.append(requestedSm.getString("diagnostics.vmInfoSystem"));
sb.append(":" + CRLF);
Map<String, String> props = runtimeMXBean.getSystemProperties();
ArrayList<String> keys = new ArrayList<String>(props.keySet());
Collections.sort(keys);
for (String prop : keys) {
sb.append(INDENT1 + prop + ": " + props.get(prop) + CRLF);
}
sb.append(CRLF);
sb.append(requestedSm.getString("diagnostics.vmInfoLogger"));
sb.append(":" + CRLF);
List<String> loggers = loggingMXBean.getLoggerNames();
Collections.sort(loggers);
for (String logger : loggers) {
sb.append(
INDENT1
+ logger
+ ": level="
+ loggingMXBean.getLoggerLevel(logger)
+ ", parent="
+ loggingMXBean.getParentLoggerName(logger)
+ CRLF);
}
sb.append(CRLF);
return sb.toString();
}
}
/** Exports stats related to the JVM and runtime environment. */
public static void export() {
final OperatingSystemMXBean osMbean = ManagementFactory.getOperatingSystemMXBean();
if (osMbean instanceof com.sun.management.OperatingSystemMXBean) {
final com.sun.management.OperatingSystemMXBean sunOsMbean =
(com.sun.management.OperatingSystemMXBean) osMbean;
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("system_free_physical_memory_mb") {
@Override
public Long read() {
return sunOsMbean.getFreePhysicalMemorySize() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("system_free_swap_mb") {
@Override
public Long read() {
return sunOsMbean.getFreeSwapSpaceSize() / BYTES_PER_MB;
}
})
.add(
Rate.of(
new StatImpl<Long>("process_cpu_time_nanos") {
@Override
public Long read() {
return sunOsMbean.getProcessCpuTime();
}
})
.withName("process_cpu_cores_utilized")
.withScaleFactor(SECS_PER_NANO)
.build())
.build());
}
if (osMbean instanceof com.sun.management.UnixOperatingSystemMXBean) {
final com.sun.management.UnixOperatingSystemMXBean unixOsMbean =
(com.sun.management.UnixOperatingSystemMXBean) osMbean;
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("process_max_fd_count") {
@Override
public Long read() {
return unixOsMbean.getMaxFileDescriptorCount();
}
})
.add(
new StatImpl<Long>("process_open_fd_count") {
@Override
public Long read() {
return unixOsMbean.getOpenFileDescriptorCount();
}
})
.build());
}
final Runtime runtime = Runtime.getRuntime();
final ClassLoadingMXBean classLoadingBean = ManagementFactory.getClassLoadingMXBean();
MemoryMXBean memoryBean = ManagementFactory.getMemoryMXBean();
final MemoryUsage heapUsage = memoryBean.getHeapMemoryUsage();
final MemoryUsage nonHeapUsage = memoryBean.getNonHeapMemoryUsage();
final ThreadMXBean threads = ManagementFactory.getThreadMXBean();
final RuntimeMXBean runtimeMXBean = ManagementFactory.getRuntimeMXBean();
Stats.exportAll(
ImmutableList.<Stat<? extends Number>>builder()
.add(
new StatImpl<Long>("jvm_time_ms") {
@Override
public Long read() {
return System.currentTimeMillis();
}
})
.add(
new StatImpl<Integer>("jvm_available_processors") {
@Override
public Integer read() {
return runtime.availableProcessors();
}
})
.add(
new StatImpl<Long>("jvm_memory_free_mb") {
@Override
public Long read() {
return runtime.freeMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_max_mb") {
@Override
public Long read() {
return runtime.maxMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_mb_total") {
@Override
public Long read() {
return runtime.totalMemory() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Integer>("jvm_class_loaded_count") {
@Override
public Integer read() {
return classLoadingBean.getLoadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_class_total_loaded_count") {
@Override
public Long read() {
return classLoadingBean.getTotalLoadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_class_unloaded_count") {
@Override
public Long read() {
return classLoadingBean.getUnloadedClassCount();
}
})
.add(
new StatImpl<Long>("jvm_gc_collection_time_ms") {
@Override
public Long read() {
long collectionTimeMs = 0;
for (GarbageCollectorMXBean bean :
ManagementFactory.getGarbageCollectorMXBeans()) {
collectionTimeMs += bean.getCollectionTime();
}
return collectionTimeMs;
}
})
.add(
new StatImpl<Long>("jvm_gc_collection_count") {
@Override
public Long read() {
long collections = 0;
for (GarbageCollectorMXBean bean :
ManagementFactory.getGarbageCollectorMXBeans()) {
collections += bean.getCollectionCount();
}
return collections;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_used") {
@Override
public Long read() {
return heapUsage.getUsed() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_committed") {
@Override
public Long read() {
return heapUsage.getCommitted() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_heap_mb_max") {
@Override
public Long read() {
return heapUsage.getMax() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_used") {
@Override
public Long read() {
return nonHeapUsage.getUsed() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_committed") {
@Override
public Long read() {
return nonHeapUsage.getCommitted() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_memory_non_heap_mb_max") {
@Override
public Long read() {
return nonHeapUsage.getMax() / BYTES_PER_MB;
}
})
.add(
new StatImpl<Long>("jvm_uptime_secs") {
@Override
public Long read() {
return runtimeMXBean.getUptime() / 1000;
}
})
.add(
new StatImpl<Double>("system_load_avg") {
@Override
public Double read() {
return osMbean.getSystemLoadAverage();
}
})
.add(
new StatImpl<Integer>("jvm_threads_peak") {
@Override
public Integer read() {
return threads.getPeakThreadCount();
}
})
.add(
new StatImpl<Long>("jvm_threads_started") {
@Override
public Long read() {
return threads.getTotalStartedThreadCount();
}
})
.add(
new StatImpl<Integer>("jvm_threads_daemon") {
@Override
public Integer read() {
return threads.getDaemonThreadCount();
}
})
.add(
new StatImpl<Integer>("jvm_threads_active") {
@Override
public Integer read() {
return threads.getThreadCount();
}
})
.build());
// Export per memory pool gc time and cycle count like Ostrich
// This is based on code in Bridcage: https://cgit.twitter.biz/birdcage/tree/ \
// ostrich/src/main/scala/com/twitter/ostrich/stats/StatsCollection.scala
Stats.exportAll(
Iterables.transform(
ManagementFactory.getGarbageCollectorMXBeans(),
new Function<GarbageCollectorMXBean, Stat<? extends Number>>() {
@Override
public Stat<? extends Number> apply(final GarbageCollectorMXBean gcMXBean) {
return new StatImpl<Long>(
"jvm_gc_" + Stats.normalizeName(gcMXBean.getName()) + "_collection_count") {
@Override
public Long read() {
return gcMXBean.getCollectionCount();
}
};
}
}));
Stats.exportAll(
Iterables.transform(
ManagementFactory.getGarbageCollectorMXBeans(),
new Function<GarbageCollectorMXBean, Stat<? extends Number>>() {
@Override
public Stat<? extends Number> apply(final GarbageCollectorMXBean gcMXBean) {
return new StatImpl<Long>(
"jvm_gc_" + Stats.normalizeName(gcMXBean.getName()) + "_collection_time_ms") {
@Override
public Long read() {
return gcMXBean.getCollectionTime();
}
};
}
}));
Stats.exportString(
new StatImpl<String>("jvm_input_arguments") {
@Override
public String read() {
return runtimeMXBean.getInputArguments().toString();
}
});
for (final String property : System.getProperties().stringPropertyNames()) {
Stats.exportString(
new StatImpl<String>("jvm_prop_" + Stats.normalizeName(property)) {
@Override
public String read() {
return System.getProperty(property);
}
});
}
}
public ClassLoadingGaugeSet() {
this(ManagementFactory.getClassLoadingMXBean());
}