Examples with ZKPeer com.linkedin.d2.quorum.ZKPeer used on opensource projects

Example 6 with ZKPeer

use of com.linkedin.d2.quorum.ZKPeer in project rest.li by linkedin.

the class TestD2ZKQuorumFailover method testD2WithQuorumFollowerServerKilled.

public void testD2WithQuorumFollowerServerKilled() throws Exception {
    setup();
    // Kill quorum peer follower zk server
    ZKPeer follower = _quorum.getQuorumFollower();
    // Simulate zk server crash
    follower.killPeerZkServer();
    assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    assertFalse(follower.getZKServer().isRunning(), "quorum Peer #" + follower.getId() + "/port " + follower.getClientPort() + " server has not shut down.");
    assertQuorumProcessAllRequests(D2_CONFIG_DATA);
}

Example 7 with ZKPeer

use of com.linkedin.d2.quorum.ZKPeer in project rest.li by linkedin.

the class TestD2ConfigWithZKQuorum method testD2ConfigWithZKQuorumV3DegraderCustomPartitionLeaderPeerDown.

public void testD2ConfigWithZKQuorumV3DegraderCustomPartitionLeaderPeerDown() throws Exception {
    setup();
    String connectionString = _quorum.getHosts();
    ZKPeer leader = _quorum.getQuorumLeader();
    leader.shutdownPeer();
    assertEquals(LoadBalancerClientCli.runDiscovery(connectionString, "/d2", D2_CONFIG_DEFAULT_PARTITION_DATA), 0);
}

Example 8 with ZKPeer

use of com.linkedin.d2.quorum.ZKPeer in project rest.li by linkedin.

the class TestD2ZKQuorumFailover method testD2WithQuorumLeaderPeerDown.

public void testD2WithQuorumLeaderPeerDown() throws Exception {
    setup();
    assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    // Shutdown zk _quorum leader peer
    ZKPeer peer = _quorum.getQuorumLeader();
    if (peer != null) {
        int peerId = peer.getId();
        peer.shutdownPeer();
        // Verify requests are processed while leader goes down
        long start = System.currentTimeMillis();
        while (_quorum.getQuorumLeader() != null && _quorum.getQuorumLeader().equals(peer) && System.currentTimeMillis() < (start + TIMEOUT)) {
            assertQuorumProcessAllRequests(D2_CONFIG_DATA);
        }
        start = System.currentTimeMillis();
        while (_quorum.getQuorumLeader() == null && System.currentTimeMillis() < (start + TIMEOUT)) {
            // wait while zookeeper is establishing a new leader
            assertQuorumProcessAllRequests(D2_CONFIG_DATA);
        }
        if (_quorum.getQuorumLeader() == null) {
            _quorum.restartAll();
        } else {
            assertTrue(!_quorum.getQuorumLeader().equals(peer), "No new _quorum leader was established. New leader id=" + _quorum.getQuorumLeader().getId());
            // Restart leader peer
            _quorum.restart(peerId);
        }
        start = System.currentTimeMillis();
        peer = _quorum.get(peerId);
        // Verify requests are processed while peer is restarting
        while (System.currentTimeMillis() < (start + TIMEOUT) && (peer.getZKServer() == null || !_quorum.areAllPeersUp() || !peer.getZKServer().isRunning())) {
            assertQuorumProcessAllRequests(D2_CONFIG_DATA);
        }
        // After restart
        assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    } else {
        fail("Quorum is unable to identify zk leader. No tests were executed.");
    }
}

Example 9 with ZKPeer

use of com.linkedin.d2.quorum.ZKPeer in project rest.li by linkedin.

the class TestD2ZKQuorumFailover method testD2WithQuorumFollowerPeerDown.

public void testD2WithQuorumFollowerPeerDown() throws Exception {
    setup();
    // Shutdown zk _quorum follower peer (non-leader member of a zk _quorum)
    ZKPeer follower = _quorum.getQuorumFollower();
    follower.shutdownPeer();
    // Assert requests are processed while follower goes down
    long start = System.currentTimeMillis();
    while (follower.getZKServer() != null && System.currentTimeMillis() < start + TIMEOUT) {
        assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    }
    assertFalse(follower.isRunning(), "_quorum Peer #" + follower.getId() + "/port " + follower.getClientPort() + " server has not shut down.");
    // Restart peer
    _quorum.restart(follower.getId());
    // Assert requests processed while follower is restarting
    start = System.currentTimeMillis();
    while ((_quorum.getPeerZKServer(follower.getId()) == null || !_quorum.getPeerZKServer(follower.getId()).isRunning()) && System.currentTimeMillis() < start + TIMEOUT) {
        assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    }
    // Assert requests are processed after peer restart
    assertQuorumProcessAllRequests(D2_CONFIG_DATA);
}

Example 10 with ZKPeer

use of com.linkedin.d2.quorum.ZKPeer in project rest.li by linkedin.

the class TestD2ZKQuorumFailover method testD2WithQuorumLeaderServerKilled.

public void testD2WithQuorumLeaderServerKilled() throws Exception {
    setup();
    // Kill _quorum leader peer zk server
    ZKPeer peer = _quorum.getQuorumLeader();
    if (peer != null) {
        peer.killPeerZkServer();
        assertQuorumProcessAllRequests(D2_CONFIG_DATA);
        assertFalse(peer.getZKServer().isRunning(), "_quorum Peer #" + peer.getId() + "/port " + peer.getClientPort() + " server has not shut down.");
        // Restart peer zk server
        peer.startupPeerZkServer();
        // Assert requests are processed while peer is restarting
        long start = System.currentTimeMillis();
        while (peer.getZKServer() == null && System.currentTimeMillis() < start + TIMEOUT) {
            assertQuorumProcessAllRequests(D2_CONFIG_DATA);
        }
        _quorum.assertAllPeersUp();
        // After restart
        assertQuorumProcessAllRequests(D2_CONFIG_DATA);
    } else {
        fail("Quorum unable to identify zk leader. No tests were executed.");
    }
}