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

Example 11 with ThreadInfo

use of java.lang.management.ThreadInfo in project metrics by dropwizard.

the class ThreadDeadlockDetectorTest method returnsASetOfThreadsIfAnyAreDeadlocked.

@Test
public void returnsASetOfThreadsIfAnyAreDeadlocked() throws Exception {
    final ThreadInfo thread1 = mock(ThreadInfo.class);
    when(thread1.getThreadName()).thenReturn("thread1");
    when(thread1.getLockName()).thenReturn("lock2");
    when(thread1.getLockOwnerName()).thenReturn("thread2");
    when(thread1.getStackTrace()).thenReturn(new StackTraceElement[] { new StackTraceElement("Blah", "bloo", "Blah.java", 150), new StackTraceElement("Blah", "blee", "Blah.java", 100) });
    final ThreadInfo thread2 = mock(ThreadInfo.class);
    when(thread2.getThreadName()).thenReturn("thread2");
    when(thread2.getLockName()).thenReturn("lock1");
    when(thread2.getLockOwnerName()).thenReturn("thread1");
    when(thread2.getStackTrace()).thenReturn(new StackTraceElement[] { new StackTraceElement("Blah", "blee", "Blah.java", 100), new StackTraceElement("Blah", "bloo", "Blah.java", 150) });
    final long[] ids = { 1, 2 };
    when(threads.findDeadlockedThreads()).thenReturn(ids);
    when(threads.getThreadInfo(eq(ids), anyInt())).thenReturn(new ThreadInfo[] { thread1, thread2 });
    assertThat(detector.getDeadlockedThreads()).containsOnly(String.format(Locale.US, "thread1 locked on lock2 (owned by thread2):%n" + "\t at Blah.bloo(Blah.java:150)%n" + "\t at Blah.blee(Blah.java:100)%n"), String.format(Locale.US, "thread2 locked on lock1 (owned by thread1):%n" + "\t at Blah.blee(Blah.java:100)%n" + "\t at Blah.bloo(Blah.java:150)%n"));
}

Example 12 with ThreadInfo

use of java.lang.management.ThreadInfo in project elasticsearch by elastic.

the class SimpleThreadPoolIT method testThreadNames.

public void testThreadNames() throws Exception {
    ThreadMXBean threadBean = ManagementFactory.getThreadMXBean();
    Set<String> preNodeStartThreadNames = new HashSet<>();
    for (long l : threadBean.getAllThreadIds()) {
        ThreadInfo threadInfo = threadBean.getThreadInfo(l);
        if (threadInfo != null) {
            preNodeStartThreadNames.add(threadInfo.getThreadName());
        }
    }
    logger.info("pre node threads are {}", preNodeStartThreadNames);
    String node = internalCluster().startNode();
    logger.info("do some indexing, flushing, optimize, and searches");
    int numDocs = randomIntBetween(2, 100);
    IndexRequestBuilder[] builders = new IndexRequestBuilder[numDocs];
    for (int i = 0; i < numDocs; ++i) {
        builders[i] = client().prepareIndex("idx", "type").setSource(jsonBuilder().startObject().field("str_value", "s" + i).array("str_values", new String[] { "s" + (i * 2), "s" + (i * 2 + 1) }).field("l_value", i).array("l_values", new int[] { i * 2, i * 2 + 1 }).field("d_value", i).array("d_values", new double[] { i * 2, i * 2 + 1 }).endObject());
    }
    indexRandom(true, builders);
    int numSearches = randomIntBetween(2, 100);
    for (int i = 0; i < numSearches; i++) {
        assertNoFailures(client().prepareSearch("idx").setQuery(QueryBuilders.termQuery("str_value", "s" + i)).get());
        assertNoFailures(client().prepareSearch("idx").setQuery(QueryBuilders.termQuery("l_value", i)).get());
    }
    Set<String> threadNames = new HashSet<>();
    for (long l : threadBean.getAllThreadIds()) {
        ThreadInfo threadInfo = threadBean.getThreadInfo(l);
        if (threadInfo != null) {
            threadNames.add(threadInfo.getThreadName());
        }
    }
    logger.info("post node threads are {}", threadNames);
    threadNames.removeAll(preNodeStartThreadNames);
    logger.info("post node *new* threads are {}", threadNames);
    for (String threadName : threadNames) {
        // or the ones that are occasionally come up from ESSingleNodeTestCase
        if (// TODO: this can't possibly be right! single node and integ test are unrelated!
        threadName.contains("[node_s_0]") || threadName.contains("Keep-Alive-Timer")) {
            continue;
        }
        String nodePrefix = "(" + Pattern.quote(InternalTestCluster.TRANSPORT_CLIENT_PREFIX) + ")?(" + Pattern.quote(ESIntegTestCase.SUITE_CLUSTER_NODE_PREFIX) + "|" + Pattern.quote(ESIntegTestCase.TEST_CLUSTER_NODE_PREFIX) + "|" + Pattern.quote("node_tribe2") + ")";
        assertThat(threadName, RegexMatcher.matches("\\[" + nodePrefix + "\\d+\\]"));
    }
}

Example 13 with ThreadInfo

use of java.lang.management.ThreadInfo in project jetty.project by eclipse.

the class JavaMonitorTools method sampleThreads.

private synchronized void sampleThreads() {
    if ((lastSampled + 50L) < System.currentTimeMillis()) {
        lastSampled = System.currentTimeMillis();
        for (final Thread.State state : Thread.State.values()) {
            states.put(state, 0);
        }
        for (final ThreadInfo thread : threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds())) {
            if (thread != null) {
                final Thread.State state = thread.getThreadState();
                states.put(state, states.get(state) + 1);
            } else {
                states.put(Thread.State.TERMINATED, states.get(Thread.State.TERMINATED) + 1);
            }
        }
    }
}

Example 14 with ThreadInfo

use of java.lang.management.ThreadInfo in project disruptor by LMAX-Exchange.

the class BasicExecutor method dumpThreadInfo.

private String dumpThreadInfo() {
    final StringBuilder sb = new StringBuilder();
    final ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();
    for (Thread t : threads) {
        ThreadInfo threadInfo = threadMXBean.getThreadInfo(t.getId());
        sb.append("{");
        sb.append("name=").append(t.getName()).append(",");
        sb.append("id=").append(t.getId()).append(",");
        sb.append("state=").append(threadInfo.getThreadState()).append(",");
        sb.append("lockInfo=").append(threadInfo.getLockInfo());
        sb.append("}");
    }
    return sb.toString();
}

Example 15 with ThreadInfo

use of java.lang.management.ThreadInfo in project Openfire by igniterealtime.

the class Threading method sampleThreads.

private synchronized void sampleThreads() {
    if ((lastSampled + 50L) < System.currentTimeMillis()) {
        lastSampled = System.currentTimeMillis();
        for (final Thread.State state : Thread.State.values()) {
            states.put(state, 0);
        }
        for (final ThreadInfo thread : threadMXBean.getThreadInfo(threadMXBean.getAllThreadIds())) {
            if (thread != null) {
                final Thread.State state = thread.getThreadState();
                states.put(state, states.get(state) + 1);
            } else {
                states.put(Thread.State.TERMINATED, states.get(Thread.State.TERMINATED) + 1);
            }
        }
    }
}