Examples with Status io.dingodb.raft.Status used on opensource projects

Example 11 with Status

use of io.dingodb.raft.Status in project dingo by dingodb.

the class CliServiceImpl method changePeers.

@Override
public Status changePeers(final String groupId, final Configuration conf, final Configuration newPeers) {
    Requires.requireTrue(!StringUtils.isBlank(groupId), "Blank group id");
    Requires.requireNonNull(conf, "Null configuration");
    Requires.requireNonNull(newPeers, "Null new peers");
    final PeerId leaderId = new PeerId();
    final Status st = checkLeaderAndConnect(groupId, conf, leaderId);
    if (!st.isOk()) {
        return st;
    }
    final CliRequests.ChangePeersRequest.Builder rb = // 
    CliRequests.ChangePeersRequest.newBuilder().setGroupId(// 
    groupId).setLeaderId(leaderId.toString());
    for (final PeerId peer : newPeers) {
        rb.addNewPeers(peer.toString());
    }
    try {
        final Message result = this.cliClientService.changePeers(leaderId.getEndpoint(), rb.build(), null).get();
        if (result instanceof CliRequests.ChangePeersResponse) {
            final CliRequests.ChangePeersResponse resp = (CliRequests.ChangePeersResponse) result;
            recordConfigurationChange(groupId, resp.getOldPeersList(), resp.getNewPeersList());
            return Status.OK();
        } else {
            return statusFromResponse(result);
        }
    } catch (final Exception e) {
        return new Status(-1, e.getMessage());
    }
}

Example 12 with Status

use of io.dingodb.raft.Status in project dingo by dingodb.

the class CliServiceImpl method removeLearners.

@Override
public Status removeLearners(final String groupId, final Configuration conf, final List<PeerId> learners) {
    checkLearnersOpParams(groupId, conf, learners);
    final PeerId leaderId = new PeerId();
    final Status st = getLeader(groupId, conf, leaderId);
    if (!st.isOk()) {
        return st;
    }
    if (!this.cliClientService.connect(leaderId.getEndpoint())) {
        return new Status(-1, "Fail to init channel to leader %s", leaderId);
    }
    final CliRequests.RemoveLearnersRequest.Builder rb = // 
    CliRequests.RemoveLearnersRequest.newBuilder().setGroupId(// 
    groupId).setLeaderId(leaderId.toString());
    for (final PeerId peer : learners) {
        rb.addLearners(peer.toString());
    }
    try {
        final Message result = this.cliClientService.removeLearners(leaderId.getEndpoint(), rb.build(), null).get();
        return processLearnersOpResponse(groupId, result, "removing learners: %s", learners);
    } catch (final Exception e) {
        return new Status(-1, e.getMessage());
    }
}

Example 13 with Status

use of io.dingodb.raft.Status in project dingo by dingodb.

the class NodeImpl method readIndex.

@Override
public void readIndex(final byte[] requestContext, final ReadIndexClosure done) {
    if (this.shutdownLatch != null) {
        Utils.runClosureInThread(done, new Status(RaftError.ENODESHUTDOWN, "Node is shutting down."));
        throw new IllegalStateException("Node is shutting down");
    }
    Requires.requireNonNull(done, "Null closure");
    this.readOnlyService.addRequest(requestContext, done);
}

Example 14 with Status

use of io.dingodb.raft.Status in project dingo by dingodb.

the class NodeImpl method resetPeers.

@Override
public Status resetPeers(final Configuration newPeers) {
    Requires.requireNonNull(newPeers, "Null new peers");
    Requires.requireTrue(!newPeers.isEmpty(), "Empty new peers");
    Requires.requireTrue(newPeers.isValid(), "Invalid new peers: %s", newPeers);
    this.writeLock.lock();
    try {
        if (newPeers.isEmpty()) {
            LOG.warn("Node {} set empty peers.", getNodeId());
            return new Status(RaftError.EINVAL, "newPeers is empty");
        }
        if (!this.state.isActive()) {
            LOG.warn("Node {} is in state {}, can't set peers.", getNodeId(), this.state);
            return new Status(RaftError.EPERM, "Bad state: %s", this.state);
        }
        // bootstrap?
        if (this.conf.getConf().isEmpty()) {
            LOG.info("Node {} set peers to {} from empty.", getNodeId(), newPeers);
            this.conf.setConf(newPeers);
            stepDown(this.currTerm + 1, false, new Status(RaftError.ESETPEER, "Set peer from empty configuration"));
            return Status.OK();
        }
        if (this.state == State.STATE_LEADER && this.confCtx.isBusy()) {
            LOG.warn("Node {} set peers need wait current conf changing.", getNodeId());
            return new Status(RaftError.EBUSY, "Changing to another configuration");
        }
        // check equal, maybe retry direct return
        if (this.conf.getConf().equals(newPeers)) {
            return Status.OK();
        }
        final Configuration newConf = new Configuration(newPeers);
        LOG.info("Node {} set peers from {} to {}.", getNodeId(), this.conf.getConf(), newPeers);
        this.conf.setConf(newConf);
        this.conf.getOldConf().reset();
        stepDown(this.currTerm + 1, false, new Status(RaftError.ESETPEER, "Raft node set peer normally"));
        return Status.OK();
    } finally {
        this.writeLock.unlock();
    }
}

Example 15 with Status

use of io.dingodb.raft.Status in project dingo by dingodb.

the class NodeImpl method handleInstallSnapshot.

@Override
public Message handleInstallSnapshot(final RpcRequests.InstallSnapshotRequest request, final RpcRequestClosure done) {
    if (this.snapshotExecutor == null) {
        return // 
        RpcFactoryHelper.responseFactory().newResponse(RpcRequests.InstallSnapshotResponse.getDefaultInstance(), RaftError.EINVAL, "Not supported snapshot");
    }
    final PeerId serverId = new PeerId();
    if (!serverId.parse(request.getServerId())) {
        LOG.warn("Node {} ignore InstallSnapshotRequest from {} bad server id.", getNodeId(), request.getServerId());
        return // 
        RpcFactoryHelper.responseFactory().newResponse(RpcRequests.InstallSnapshotResponse.getDefaultInstance(), RaftError.EINVAL, "Parse serverId failed: %s", request.getServerId());
    }
    this.writeLock.lock();
    try {
        if (!this.state.isActive()) {
            LOG.warn("Node {} ignore InstallSnapshotRequest as it is not in active state {}.", getNodeId(), this.state);
            return // 
            RpcFactoryHelper.responseFactory().newResponse(RpcRequests.InstallSnapshotResponse.getDefaultInstance(), RaftError.EINVAL, "Node %s:%s is not in active state, state %s.", this.groupId, this.serverId, this.state.name());
        }
        if (request.getTerm() < this.currTerm) {
            LOG.warn("Node {} ignore stale InstallSnapshotRequest from {}, term={}, currTerm={}.", getNodeId(), request.getPeerId(), request.getTerm(), this.currTerm);
            return // 
            RpcRequests.InstallSnapshotResponse.newBuilder().setTerm(// 
            this.currTerm).setSuccess(// 
            false).build();
        }
        checkStepDown(request.getTerm(), serverId);
        if (!serverId.equals(this.leaderId)) {
            LOG.error("Another peer {} declares that it is the leader at term {} which was occupied by leader {}.", serverId, this.currTerm, this.leaderId);
            // Increase the term by 1 and make both leaders step down to minimize the
            // loss of split brain
            stepDown(request.getTerm() + 1, false, new Status(RaftError.ELEADERCONFLICT, "More than one leader in the same term."));
            return // 
            RpcRequests.InstallSnapshotResponse.newBuilder().setTerm(// 
            request.getTerm() + 1).setSuccess(// 
            false).build();
        }
    } finally {
        this.writeLock.unlock();
    }
    final long startMs = Utils.monotonicMs();
    try {
        if (LOG.isInfoEnabled()) {
            LOG.info("Node {} received InstallSnapshotRequest from {}, lastIncludedLogIndex={}, lastIncludedLogTerm={}, lastLogId={}.", getNodeId(), request.getServerId(), request.getMeta().getLastIncludedIndex(), request.getMeta().getLastIncludedTerm(), this.logManager.getLastLogId(false));
        }
        this.snapshotExecutor.installSnapshot(request, RpcRequests.InstallSnapshotResponse.newBuilder(), done);
        return null;
    } finally {
        this.metrics.recordLatency("install-snapshot", Utils.monotonicMs() - startMs);
    }
}