Examples with Configuration io.dingodb.raft.conf.Configuration used on opensource projects

Example 6 with Configuration

use of io.dingodb.raft.conf.Configuration in project dingo by dingodb.

the class NodeImpl method removePeer.

@Override
public void removePeer(final PeerId peer, final Closure done) {
    Requires.requireNonNull(peer, "Null peer");
    this.writeLock.lock();
    try {
        Requires.requireTrue(this.conf.getConf().contains(peer), "Peer not found in current configuration");
        final Configuration newConf = new Configuration(this.conf.getConf());
        newConf.removePeer(peer);
        unsafeRegisterConfChange(this.conf.getConf(), newConf, done);
    } finally {
        this.writeLock.unlock();
    }
}

Example 7 with Configuration

use of io.dingodb.raft.conf.Configuration in project dingo by dingodb.

the class ResetPeerRequestProcessor method processRequest0.

@Override
protected Message processRequest0(final CliRequestContext ctx, final CliRequests.ResetPeerRequest request, final RpcRequestClosure done) {
    final Configuration newConf = new Configuration();
    for (final String peerIdStr : request.getNewPeersList()) {
        final PeerId peer = new PeerId();
        if (peer.parse(peerIdStr)) {
            newConf.addPeer(peer);
        } else {
            return // 
            RpcFactoryHelper.responseFactory().newResponse(defaultResp(), RaftError.EINVAL, "Fail to parse peer id %s", peerIdStr);
        }
    }
    LOG.info("Receive ResetPeerRequest to {} from {}, new conf is {}", ctx.node.getNodeId(), done.getRpcCtx().getRemoteAddress(), newConf);
    final Status st = ctx.node.resetPeers(newConf);
    return // 
    RpcFactoryHelper.responseFactory().newResponse(defaultResp(), st);
}

Example 8 with Configuration

use of io.dingodb.raft.conf.Configuration in project dingo by dingodb.

the class ChangePeersRequestProcessor method processRequest0.

@Override
protected Message processRequest0(final CliRequestContext ctx, final CliRequests.ChangePeersRequest request, final RpcRequestClosure done) {
    final List<PeerId> oldConf = ctx.node.listPeers();
    final Configuration conf = new Configuration();
    for (final String peerIdStr : request.getNewPeersList()) {
        final PeerId peer = new PeerId();
        if (peer.parse(peerIdStr)) {
            conf.addPeer(peer);
        } else {
            return // 
            RpcFactoryHelper.responseFactory().newResponse(defaultResp(), RaftError.EINVAL, "Fail to parse peer id %s", peerIdStr);
        }
    }
    LOG.info("Receive ChangePeersRequest to {} from {}, new conf is {}", ctx.node.getNodeId(), done.getRpcCtx().getRemoteAddress(), conf);
    ctx.node.changePeers(conf, status -> {
        if (!status.isOk()) {
            done.run(status);
        } else {
            CliRequests.ChangePeersResponse.Builder rb = CliRequests.ChangePeersResponse.newBuilder();
            for (final PeerId peer : oldConf) {
                rb.addOldPeers(peer.toString());
            }
            for (final PeerId peer : conf) {
                rb.addNewPeers(peer.toString());
            }
            done.sendResponse(rb.build());
        }
    });
    return null;
}

Example 9 with Configuration

use of io.dingodb.raft.conf.Configuration in project dingo by dingodb.

the class LogManagerImpl method setSnapshot.

@Override
public void setSnapshot(final SnapshotMeta meta) {
    LOG.debug("set snapshot: {}.", meta);
    boolean isUnLock = true;
    this.writeLock.lock();
    try {
        if (meta.getLastIncludedIndex() <= this.lastSnapshotId.getIndex()) {
            return;
        }
        final Configuration conf = confFromMeta(meta);
        final Configuration oldConf = oldConfFromMeta(meta);
        final ConfigurationEntry entry = new ConfigurationEntry(new LogId(meta.getLastIncludedIndex(), meta.getLastIncludedTerm()), conf, oldConf);
        this.configManager.setSnapshot(entry);
        final long term = unsafeGetTerm(meta.getLastIncludedIndex());
        final long savedLastSnapshotIndex = this.lastSnapshotId.getIndex();
        this.lastSnapshotId.setIndex(meta.getLastIncludedIndex());
        this.lastSnapshotId.setTerm(meta.getLastIncludedTerm());
        if (this.lastSnapshotId.compareTo(this.appliedId) > 0) {
            this.appliedId = this.lastSnapshotId.copy();
        }
        // NOTICE: not to update disk_id here as we are not sure if this node really
        // has these logs on disk storage. Just leave disk_id as it was, which can keep
        // these logs in memory all the time until they are flushed to disk. By this
        // way we can avoid some corner cases which failed to get logs.
        // See https://github.com/baidu/braft/pull/224/commits/8ef6fdbf70d23f5a4ee147356a889e2c0fa22aac
        // if (this.lastSnapshotId.compareTo(this.diskId) > 0) {
        // this.diskId = this.lastSnapshotId.copy();
        // }
        long firstKeepedIndex = 0L;
        if (term == 0) {
            // last_included_index is larger than last_index
            // FIXME: what if last_included_index is less than first_index?
            firstKeepedIndex = meta.getLastIncludedIndex() + 1;
            truncatePrefix(firstKeepedIndex);
            isUnLock = false;
            writeLock.unlock();
        } else if (term == meta.getLastIncludedTerm()) {
            // TODO if there are still be need?
            if (savedLastSnapshotIndex > 0) {
                firstKeepedIndex = savedLastSnapshotIndex + 1;
                truncatePrefix(firstKeepedIndex);
                isUnLock = false;
                writeLock.unlock();
            }
        } else {
            final long lastIncludeIndex = meta.getLastIncludedIndex() + 1;
            boolean isOK = reset(lastIncludeIndex);
            isUnLock = false;
            writeLock.unlock();
            if (isOK) {
                final ResetClosure c = new ResetClosure(lastIncludeIndex);
                doPublish(c, EventType.RESET);
                LOG.warn("Reset log manager, nextLogIndex={}", lastIncludeIndex);
            } else {
                LOG.warn("Reset log manager failed, nextLogIndex={}.", lastIncludeIndex);
            }
        }
        if (firstKeepedIndex != 0) {
            final TruncatePrefixClosure c = new TruncatePrefixClosure(firstKeepedIndex);
            doPublish(c, EventType.TRUNCATE_PREFIX);
        }
    } finally {
        if (isUnLock) {
            this.writeLock.unlock();
        }
    }
}

Example 10 with Configuration

use of io.dingodb.raft.conf.Configuration in project dingo by dingodb.

the class LogManagerImpl method oldConfFromMeta.

private Configuration oldConfFromMeta(final SnapshotMeta meta) {
    final Configuration oldConf = new Configuration();
    for (int i = 0; i < meta.getOldPeersCount(); i++) {
        final PeerId peer = new PeerId();
        peer.parse(meta.getOldPeers(i));
        oldConf.addPeer(peer);
    }
    for (int i = 0; i < meta.getOldLearnersCount(); i++) {
        final PeerId peer = new PeerId();
        peer.parse(meta.getOldLearners(i));
        oldConf.addLearner(peer);
    }
    return oldConf;
}