Examples with RaftException io.dingodb.raft.error.RaftException used on opensource projects

Example 1 with RaftException

use of io.dingodb.raft.error.RaftException in project dingo by dingodb.

the class Replicator method installSnapshot.

void installSnapshot() {
    if (getState() == State.Snapshot) {
        LOG.warn("Replicator {} is installing snapshot, ignore the new request.", this.options.getPeerId());
        unlockId();
        return;
    }
    boolean doUnlock = true;
    if (!rpcService.connect(options.getPeerId().getEndpoint())) {
        LOG.error("Fail to check install snapshot connection to peer={}, give up to send install snapshot request.", options.getPeerId().getEndpoint());
        block(Utils.nowMs(), RaftError.EHOSTDOWN.getNumber());
        return;
    }
    try {
        Requires.requireTrue(this.reader == null, "Replicator %s already has a snapshot reader, current state is %s", this.options.getPeerId(), getState());
        this.reader = this.options.getSnapshotStorage().open();
        if (this.reader == null) {
            final NodeImpl node = this.options.getNode();
            final RaftException error = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_SNAPSHOT);
            error.setStatus(new Status(RaftError.EIO, "Fail to open snapshot"));
            unlockId();
            doUnlock = false;
            node.onError(error);
            return;
        }
        final String uri = this.reader.generateURIForCopy();
        if (uri == null) {
            final NodeImpl node = this.options.getNode();
            final RaftException error = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_SNAPSHOT);
            error.setStatus(new Status(RaftError.EIO, "Fail to generate uri for snapshot reader"));
            releaseReader();
            unlockId();
            doUnlock = false;
            node.onError(error);
            return;
        }
        final RaftOutter.SnapshotMeta meta = this.reader.load();
        if (meta == null) {
            final String snapshotPath = this.reader.getPath();
            final NodeImpl node = this.options.getNode();
            final RaftException error = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_SNAPSHOT);
            error.setStatus(new Status(RaftError.EIO, "Fail to load meta from %s", snapshotPath));
            releaseReader();
            unlockId();
            doUnlock = false;
            node.onError(error);
            return;
        }
        final RpcRequests.InstallSnapshotRequest.Builder rb = RpcRequests.InstallSnapshotRequest.newBuilder();
        rb.setTerm(this.options.getTerm());
        rb.setGroupId(this.options.getGroupId());
        rb.setServerId(this.options.getServerId().toString());
        rb.setPeerId(this.options.getPeerId().toString());
        rb.setMeta(meta);
        rb.setUri(uri);
        this.statInfo.runningState = RunningState.INSTALLING_SNAPSHOT;
        this.statInfo.lastLogIncluded = meta.getLastIncludedIndex();
        this.statInfo.lastTermIncluded = meta.getLastIncludedTerm();
        final RpcRequests.InstallSnapshotRequest request = rb.build();
        setState(State.Snapshot);
        // noinspection NonAtomicOperationOnVolatileField
        this.installSnapshotCounter++;
        final long monotonicSendTimeMs = Utils.monotonicMs();
        final int stateVersion = this.version;
        final int seq = getAndIncrementReqSeq();
        final Future<Message> rpcFuture = this.rpcService.installSnapshot(this.options.getPeerId().getEndpoint(), request, new RpcResponseClosureAdapter<RpcRequests.InstallSnapshotResponse>() {

            @Override
            public void run(final Status status) {
                onRpcReturned(Replicator.this.id, RequestType.Snapshot, status, request, getResponse(), seq, stateVersion, monotonicSendTimeMs);
            }
        });
        addInflight(RequestType.Snapshot, this.nextIndex, 0, 0, seq, rpcFuture);
    } finally {
        if (doUnlock) {
            unlockId();
        }
    }
}

Example 2 with RaftException

use of io.dingodb.raft.error.RaftException in project dingo by dingodb.

the class SnapshotExecutorImpl method reportError.

private void reportError(final int errCode, final String fmt, final Object... args) {
    final RaftException error = new RaftException(ErrorType.ERROR_TYPE_SNAPSHOT);
    error.setStatus(new Status(errCode, fmt, args));
    this.fsmCaller.onError(error);
}

Example 3 with RaftException

use of io.dingodb.raft.error.RaftException in project dingo by dingodb.

the class LogManagerImpl method reportError.

private void reportError(final int code, final String fmt, final Object... args) {
    this.hasError = true;
    final RaftException error = new RaftException(ErrorType.ERROR_TYPE_LOG);
    error.setStatus(new Status(code, fmt, args));
    this.fsmCaller.onError(error);
}

Example 4 with RaftException

use of io.dingodb.raft.error.RaftException in project dingo by dingodb.

the class FSMCallerImpl method init.

@Override
public boolean init(final FSMCallerOptions opts) {
    this.logManager = opts.getLogManager();
    this.fsm = opts.getFsm();
    this.closureQueue = opts.getClosureQueue();
    this.afterShutdown = opts.getAfterShutdown();
    this.node = opts.getNode();
    this.nodeMetrics = this.node.getNodeMetrics();
    this.lastAppliedIndex.set(opts.getBootstrapId().getIndex());
    notifyLastAppliedIndexUpdated(this.lastAppliedIndex.get());
    this.lastAppliedTerm = opts.getBootstrapId().getTerm();
    this.disruptor = // 
    DisruptorBuilder.<ApplyTask>newInstance().setEventFactory(// 
    new ApplyTaskFactory()).setRingBufferSize(// 
    opts.getDisruptorBufferSize()).setThreadFactory(// 
    new NamedThreadFactory("JRaft-FSMCaller-Disruptor-", true)).setProducerType(// 
    ProducerType.MULTI).setWaitStrategy(// 
    new BlockingWaitStrategy()).build();
    this.disruptor.handleEventsWith(new ApplyTaskHandler());
    this.disruptor.setDefaultExceptionHandler(new LogExceptionHandler<Object>(getClass().getSimpleName()));
    this.taskQueue = this.disruptor.start();
    if (this.nodeMetrics.getMetricRegistry() != null) {
        this.nodeMetrics.getMetricRegistry().register("jraft-fsm-caller-disruptor", new DisruptorMetricSet(this.taskQueue));
    }
    this.error = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_NONE);
    LOG.info("Starts FSMCaller successfully.");
    return true;
}

Example 5 with RaftException

use of io.dingodb.raft.error.RaftException in project dingo by dingodb.

the class FSMCallerImpl method doSnapshotLoad.

private void doSnapshotLoad(final LoadSnapshotClosure done) {
    Requires.requireNonNull(done, "LoadSnapshotClosure is null");
    final SnapshotReader reader = done.start();
    if (reader == null) {
        done.run(new Status(RaftError.EINVAL, "open SnapshotReader failed"));
        return;
    }
    final RaftOutter.SnapshotMeta meta = reader.load();
    if (meta == null) {
        done.run(new Status(RaftError.EINVAL, "SnapshotReader load meta failed"));
        if (reader.getRaftError() == RaftError.EIO) {
            final RaftException err = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_SNAPSHOT, RaftError.EIO, "Fail to load snapshot meta");
            setError(err);
        }
        return;
    }
    final LogId lastAppliedId = new LogId(this.lastAppliedIndex.get(), this.lastAppliedTerm);
    final LogId snapshotId = new LogId(meta.getLastIncludedIndex(), meta.getLastIncludedTerm());
    if (lastAppliedId.compareTo(snapshotId) > 0) {
        done.run(new Status(RaftError.ESTALE, "Loading a stale snapshot last_applied_index=%d " + "last_applied_term=%d snapshot_index=%d snapshot_term=%d", lastAppliedId.getIndex(), lastAppliedId.getTerm(), snapshotId.getIndex(), snapshotId.getTerm()));
        return;
    }
    if (!this.fsm.onSnapshotLoad(reader)) {
        done.run(new Status(-1, "StateMachine onSnapshotLoad failed"));
        final RaftException e = new RaftException(EnumOutter.ErrorType.ERROR_TYPE_STATE_MACHINE, RaftError.ESTATEMACHINE, "StateMachine onSnapshotLoad failed");
        setError(e);
        return;
    }
    if (meta.getOldPeersCount() == 0) {
        // Joint stage is not supposed to be noticeable by end users.
        final Configuration conf = new Configuration();
        for (int i = 0, size = meta.getPeersCount(); i < size; i++) {
            final PeerId peer = new PeerId();
            Requires.requireTrue(peer.parse(meta.getPeers(i)), "Parse peer failed");
            conf.addPeer(peer);
        }
        this.fsm.onConfigurationCommitted(conf);
    }
    this.lastAppliedIndex.set(meta.getLastIncludedIndex());
    this.lastAppliedTerm = meta.getLastIncludedTerm();
    done.run(Status.OK());
}