Examples with Node com.alipay.sofa.jraft.Node used on opensource projects

Example 86 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class CliServiceTest method testChangePeers.

@Test
public void testChangePeers() throws Exception {
    final List<PeerId> newPeers = TestUtils.generatePeers(10);
    newPeers.removeAll(this.conf.getPeerSet());
    for (final PeerId peer : newPeers) {
        assertTrue(this.cluster.start(peer.getEndpoint()));
    }
    this.cluster.waitLeader();
    final Node oldLeaderNode = this.cluster.getLeader();
    assertNotNull(oldLeaderNode);
    final PeerId oldLeader = oldLeaderNode.getNodeId().getPeerId();
    assertNotNull(oldLeader);
    assertTrue(this.cliService.changePeers(this.groupId, this.conf, new Configuration(newPeers)).isOk());
    this.cluster.waitLeader();
    final PeerId newLeader = this.cluster.getLeader().getNodeId().getPeerId();
    assertNotEquals(oldLeader, newLeader);
    assertTrue(newPeers.contains(newLeader));
}

Example 87 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class TestCluster method stop.

public boolean stop(final Endpoint listenAddr) throws InterruptedException {
    final Node node = removeNode(listenAddr);
    final CountDownLatch latch = new CountDownLatch(1);
    if (node != null) {
        node.shutdown(new ExpectClosure(latch));
        node.join();
        latch.await();
    }
    final RaftGroupService raftGroupService = this.serverMap.remove(listenAddr.toString());
    raftGroupService.shutdown();
    raftGroupService.join();
    return node != null;
}

Example 88 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class NodeImpl method apply.

@Override
public void apply(final Task task) {
    if (this.shutdownLatch != null) {
        Utils.runClosureInThread(task.getDone(), new Status(RaftError.ENODESHUTDOWN, "Node is shutting down."));
        throw new IllegalStateException("Node is shutting down");
    }
    Requires.requireNonNull(task, "Null task");
    final LogEntry entry = new LogEntry();
    entry.setData(task.getData());
    final EventTranslator<LogEntryAndClosure> translator = (event, sequence) -> {
        event.reset();
        event.done = task.getDone();
        event.entry = entry;
        event.expectedTerm = task.getExpectedTerm();
    };
    switch(this.options.getApplyTaskMode()) {
        case Blocking:
            this.applyQueue.publishEvent(translator);
            break;
        case NonBlocking:
        default:
            if (!this.applyQueue.tryPublishEvent(translator)) {
                String errorMsg = "Node is busy, has too many tasks, queue is full and bufferSize=" + this.applyQueue.getBufferSize();
                Utils.runClosureInThread(task.getDone(), new Status(RaftError.EBUSY, errorMsg));
                LOG.warn("Node {} applyQueue is overload.", getNodeId());
                this.metrics.recordTimes("apply-task-overload-times", 1);
                if (task.getDone() == null) {
                    throw new OverloadException(errorMsg);
                }
            }
            break;
    }
}

Example 89 with Node

use of com.alipay.sofa.jraft.Node in project sofa-jraft by sofastack.

the class Replicator method notifyReplicatorStatusListener.

/**
 * Notify replicator event(such as created, error, destroyed) to replicatorStateListener which is implemented by users.
 *
 * @param replicator replicator object
 * @param event      replicator's state listener event type
 * @param status     replicator's error detailed status
 */
private static void notifyReplicatorStatusListener(final Replicator replicator, final ReplicatorEvent event, final Status status, final ReplicatorState newState) {
    final ReplicatorOptions replicatorOpts = Requires.requireNonNull(replicator.getOpts(), "replicatorOptions");
    final Node node = Requires.requireNonNull(replicatorOpts.getNode(), "node");
    final PeerId peer = Requires.requireNonNull(replicatorOpts.getPeerId(), "peer");
    final List<ReplicatorStateListener> listenerList = node.getReplicatorStatueListeners();
    for (int i = 0; i < listenerList.size(); i++) {
        final ReplicatorStateListener listener = listenerList.get(i);
        if (listener != null) {
            try {
                switch(event) {
                    case CREATED:
                        RpcUtils.runInThread(() -> listener.onCreated(peer));
                        break;
                    case ERROR:
                        RpcUtils.runInThread(() -> listener.onError(peer, status));
                        break;
                    case DESTROYED:
                        RpcUtils.runInThread(() -> listener.onDestroyed(peer));
                        break;
                    case STATE_CHANGED:
                        RpcUtils.runInThread(() -> listener.stateChanged(peer, newState));
                    default:
                        break;
                }
            } catch (final Exception e) {
                LOG.error("Fail to notify ReplicatorStatusListener, listener={}, event={}.", listener, event);
            }
        }
    }
}

Example 90 with Node

use of com.alipay.sofa.jraft.Node in project incubator-hugegraph by apache.

the class RaftGroupManagerImpl method setLeader.

@Override
public String setLeader(String endpoint) {
    PeerId newLeaderId = PeerId.parsePeer(endpoint);
    Node node = this.raftNode.node();
    // If expected endpoint has already been raft leader
    if (node.getLeaderId().equals(newLeaderId)) {
        return newLeaderId.toString();
    }
    if (this.raftNode.selfIsLeader()) {
        // If current node is the leader, transfer directly
        this.transferLeaderTo(endpoint);
    } else {
        // If current node is not leader, forward request to leader
        SetLeaderRequest request = SetLeaderRequest.newBuilder().setEndpoint(endpoint).build();
        try {
            RaftClosure<SetLeaderResponse> future;
            future = this.forwardToLeader(request);
            future.waitFinished();
        } catch (Throwable e) {
            throw new BackendException("Failed to set leader to '%s'", e, endpoint);
        }
    }
    return newLeaderId.toString();
}