Example usage for java.lang.management ThreadMXBean getThreadInfo

Introduction

In this page you can find the example usage for java.lang.management ThreadMXBean getThreadInfo.

Prototype

public ThreadInfo[] getThreadInfo(long[] ids);

Source Link

Document

Returns the thread info for each thread whose ID is in the input array ids with no stack trace.

Usage

From source file:com.thoughtworks.go.server.service.support.ThreadInformationProvider.java

@Override
public void appendInformation(InformationStringBuilder builder) {
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    builder.addSection("Thread information");

    builder.append(String.format("Current: %s, Total: %s, Daemon: %s, Peak: %s\n",
            threadMXBean.getThreadCount(), threadMXBean.getTotalStartedThreadCount(),
            threadMXBean.getDaemonThreadCount(), threadMXBean.getPeakThreadCount()));
    long[] deadlockedThreads = threadMXBean.findDeadlockedThreads();
    if (deadlockedThreads != null && deadlockedThreads.length > 0) {
        builder.append(String.format("Found %s dead locked threads. Here is there information.\n",
                deadlockedThreads.length));
        for (long deadlockedThread : deadlockedThreads) {
            ThreadInfo threadInfo = threadMXBean.getThreadInfo(deadlockedThread);
            LockInfo lockInfo = threadInfo.getLockInfo();
            if (lockInfo != null) {
                builder.append(String.format("LockInfo: %s", lockInfo));
            } else {
                builder.append("This thread is not waiting for any locks\n");
            }//from  w  w w.  j  av  a 2 s .c  o  m
            builder.append(String.format("Monitor Info - Stack Frame where locks were taken.\n"));
            MonitorInfo[] lockedMonitors = threadInfo.getLockedMonitors();
            for (MonitorInfo lockedMonitor : lockedMonitors) {
                builder.append(String.format("Monitor for class '%s' taken at stack frame '%s'.",
                        lockedMonitor.getClassName(), lockedMonitor.getLockedStackFrame()));
            }
            builder.append("The stack trace of the deadlocked thread\n");
            builder.append(Arrays.toString(threadInfo.getStackTrace()));
        }
    }
    builder.addSubSection("All thread stacktraces");
    ThreadInfo[] threadInfos = threadMXBean.dumpAllThreads(true, true);
    for (ThreadInfo threadInfo : threadInfos) {
        builder.append(String.format("%s, %s, %s\n", threadInfo.getThreadId(), threadInfo.getThreadName(),
                threadInfo.getThreadState()));
        MonitorInfo[] lockedMonitors = threadInfo.getLockedMonitors();
        builder.append("Locked Monitors:\n");
        for (MonitorInfo lockedMonitor : lockedMonitors) {
            builder.append(String.format("%s at %s", lockedMonitor, lockedMonitor.getLockedStackFrame()));
        }
        LockInfo[] lockedSynchronizers = threadInfo.getLockedSynchronizers();
        builder.append("Locked Synchronizers:\n");
        for (LockInfo lockedSynchronizer : lockedSynchronizers) {
            builder.append(lockedSynchronizer);
        }
        builder.append("Stacktrace:\n  ");
        builder.append(StringUtils.join(threadInfo.getStackTrace(), "\n  "));
        builder.append("\n\n");
    }
}

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From source file:org.apache.tez.runtime.LogicalIOProcessorRuntimeTask.java

/**
 * Print all threads in JVM (only for debugging)
 *//*from  w ww . ja v  a 2  s .  c  o m*/
void printThreads() {
    //Print the status of all threads in JVM
    ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    long[] threadIds = threadMXBean.getAllThreadIds();
    for (Long id : threadIds) {
        ThreadInfo threadInfo = threadMXBean.getThreadInfo(id);
        // The thread could have been shutdown before we read info about it.
        if (threadInfo != null) {
            if (LOG.isDebugEnabled()) {
                LOG.debug("ThreadId : " + id + ", name=" + threadInfo.getThreadName());
            }
        }
    }
}

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From source file:org.wso2.carbon.integration.test.client.JMXAnalyzerClient.java

public static int getThreadCount(String host, String port) throws IOException {
    String username = "admin";
    String password = "admin";
    int threadCount = 0;
    String threadName = "JMSThreads";
    JMXServiceURL url = new JMXServiceURL("service:jmx:rmi:///jndi/rmi://" + host + ":" + port + "/jmxrmi");
    Map<String, String[]> env = new HashMap<String, String[]>();
    ThreadInfo threadIDInfo;/*from   ww w. j a  va 2  s .c  o m*/

    String[] credentials = { username, password };
    env.put(JMXConnector.CREDENTIALS, credentials);
    JMXConnector jmxConnector = JMXConnectorFactory.connect(url, env);
    MBeanServerConnection mbeanServerConnection = jmxConnector.getMBeanServerConnection();
    final ThreadMXBean remoteThread = ManagementFactory.newPlatformMXBeanProxy(mbeanServerConnection,
            ManagementFactory.THREAD_MXBEAN_NAME, ThreadMXBean.class);
    long[] allThreadIDsArray = remoteThread.getAllThreadIds();

    //get jms thread count
    for (long threadID : allThreadIDsArray) {
        threadIDInfo = remoteThread.getThreadInfo(threadID);
        if (threadIDInfo != null && threadIDInfo.getThreadName() != null
                && threadIDInfo.getThreadName().startsWith(threadName)) {
            threadCount++;
        }
    }
    //close the connection
    jmxConnector.close();
    return threadCount;
}

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From source file:org.wyona.yanel.impl.resources.usecase.thread.UsecaseThread.java

/**
 * Get thread with the given id from repository.
 * @param repository Repository//  w w  w .ja v a2 s. c o  m
 * @param directoryPath Collection path which contains the thread key
 * @param threadID
 * @return thread or null if there is no such thread attached to the repository
 */
public static java.lang.management.ThreadInfo getThreadFromRepository(
        org.wyona.yarep.core.Repository repository, String directoryPath, String threadID)
        throws org.wyona.yarep.core.RepositoryException, java.io.IOException {
    //public static UsecaseThread getThreadFromRepository(org.wyona.yarep.core.Repository repository, String directoryPath, String threadID) throws org.wyona.yarep.core.RepositoryException, java.io.IOException {
    String threadKey = getThreadKey(threadID);
    String threadKeyPath = directoryPath + "/" + threadKey;
    if (repository.existsNode(threadKeyPath)) {
        Node node = repository.getNode(threadKeyPath);
        String javaThreadId = new java.io.BufferedReader(new java.io.InputStreamReader(node.getInputStream()))
                .readLine();

        final java.lang.management.ThreadMXBean thbean = java.lang.management.ManagementFactory
                .getThreadMXBean();
        long[] threadIDs = thbean.getAllThreadIds();
        for (int i = 0; i < threadIDs.length; i++) {
            log.debug("Thread ID: " + threadIDs[i]);
            if (javaThreadId.equals("" + threadIDs[i])) {
                log.debug("Thread with id '" + javaThreadId + "' is running.");
                return thbean.getThreadInfo(threadIDs[i]);
                /*
                                    final Thread[] threads = getAllThreads();
                                    for (Thread thread : threads) {
                if (thread.getId() == threadIDs[i]) {
                    return (UsecaseThread) thread;
                }
                                    }
                                    log.error("No thread with id '" + threadIDs[i] + "' exists!");
                                    return null;
                */
            }
        }
        log.info("No such thread running: " + threadID + ", " + javaThreadId);
        return null;
    } else {
        log.info("No such thread '" + threadID + "' within repository: " + threadKeyPath);
        return null;
    }
    //return (UsecaseThread)session.getAttribute(attrName); 
}

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