Examples with OSMXBean org.apache.zookeeper.server.util.OSMXBean used on opensource projects

Example 6 with OSMXBean

use of org.apache.zookeeper.server.util.OSMXBean in project zookeeper by apache.

the class NIOConnectionFactoryFdLeakTest method testFileDescriptorLeak.

@Test
public void testFileDescriptorLeak() throws Exception {
    OSMXBean osMbean = new OSMXBean();
    if (osMbean.getUnix() != true) {
        LOG.info("Unable to run test on non-unix system");
        return;
    }
    long startFdCount = osMbean.getOpenFileDescriptorCount();
    LOG.info("Start fdcount is: " + startFdCount);
    for (int i = 0; i < 50; ++i) {
        NIOServerCnxnFactory factory = new NIOServerCnxnFactory();
        factory.configure(new InetSocketAddress("127.0.0.1", PortAssignment.unique()), 10);
        factory.start();
        Thread.sleep(100);
        factory.shutdown();
    }
    long endFdCount = osMbean.getOpenFileDescriptorCount();
    LOG.info("End fdcount is: " + endFdCount);
    // On my box, if selector.close() is not called fd diff is > 700.
    Assert.assertTrue("Possible fd leakage", ((endFdCount - startFdCount) < 50));
}

Example 7 with OSMXBean

use of org.apache.zookeeper.server.util.OSMXBean in project zookeeper by apache.

the class ClientTest method testClientCleanup.

/**
     * Verify that the client is cleaning up properly. Open/close a large
     * number of sessions. Essentially looking to see if sockets/selectors
     * are being cleaned up properly during close.
     *
     * @throws Throwable
     */
@Test
public void testClientCleanup() throws Throwable {
    OSMXBean osMbean = new OSMXBean();
    if (osMbean.getUnix() == false) {
        LOG.warn("skipping testClientCleanup, only available on Unix");
        return;
    }
    final int threadCount = 3;
    final int clientCount = 10;
    /* Log the number of fds used before and after a test is run. Verifies
         * we are freeing resources correctly. Unfortunately this only works
         * on unix systems (the only place sun has implemented as part of the
         * mgmt bean api).
         */
    long initialFdCount = osMbean.getOpenFileDescriptorCount();
    VerifyClientCleanup[] threads = new VerifyClientCleanup[threadCount];
    for (int i = 0; i < threads.length; i++) {
        threads[i] = new VerifyClientCleanup("VCC" + i, clientCount);
        threads[i].start();
    }
    for (int i = 0; i < threads.length; i++) {
        threads[i].join(CONNECTION_TIMEOUT);
        Assert.assertTrue(threads[i].current == threads[i].count);
    }
    // if this Assert.fails it means we are not cleaning up after the closed
    // sessions.
    long currentCount = osMbean.getOpenFileDescriptorCount();
    final String logmsg = "open fds after test ({}) are not significantly higher than before ({})";
    if (currentCount > initialFdCount + 10) {
        // consider as error
        LOG.error(logmsg, Long.valueOf(currentCount), Long.valueOf(initialFdCount));
    } else {
        LOG.info(logmsg, Long.valueOf(currentCount), Long.valueOf(initialFdCount));
    }
}

Example 8 with OSMXBean

use of org.apache.zookeeper.server.util.OSMXBean in project zookeeper by apache.

the class QuorumUtil method tearDown.

public void tearDown() throws Exception {
    LOG.info("TearDown started");
    OSMXBean osMbean = new OSMXBean();
    if (osMbean.getUnix() == true) {
        LOG.info("fdcount after test is: " + osMbean.getOpenFileDescriptorCount());
    }
    shutdownAll();
    JMXEnv.tearDown();
}

Example 9 with OSMXBean

use of org.apache.zookeeper.server.util.OSMXBean in project zookeeper by apache.

the class QuorumBase method setUp.

protected void setUp(boolean withObservers) throws Exception {
    LOG.info("QuorumBase.setup " + getTestName());
    setupTestEnv();
    JMXEnv.setUp();
    setUpAll();
    port1 = PortAssignment.unique();
    port2 = PortAssignment.unique();
    port3 = PortAssignment.unique();
    port4 = PortAssignment.unique();
    port5 = PortAssignment.unique();
    portLE1 = PortAssignment.unique();
    portLE2 = PortAssignment.unique();
    portLE3 = PortAssignment.unique();
    portLE4 = PortAssignment.unique();
    portLE5 = PortAssignment.unique();
    portClient1 = PortAssignment.unique();
    portClient2 = PortAssignment.unique();
    portClient3 = PortAssignment.unique();
    portClient4 = PortAssignment.unique();
    portClient5 = PortAssignment.unique();
    hostPort = "127.0.0.1:" + portClient1 + ",127.0.0.1:" + portClient2 + ",127.0.0.1:" + portClient3 + ",127.0.0.1:" + portClient4 + ",127.0.0.1:" + portClient5;
    LOG.info("Ports are: " + hostPort);
    s1dir = ClientBase.createTmpDir();
    s2dir = ClientBase.createTmpDir();
    s3dir = ClientBase.createTmpDir();
    s4dir = ClientBase.createTmpDir();
    s5dir = ClientBase.createTmpDir();
    startServers(withObservers);
    OSMXBean osMbean = new OSMXBean();
    if (osMbean.getUnix() == true) {
        LOG.info("Initial fdcount is: " + osMbean.getOpenFileDescriptorCount());
    }
    LOG.info("Setup finished");
}