Examples with Recyclable io.dingodb.raft.util.Recyclable used on opensource projects

Example 1 with Recyclable

use of io.dingodb.raft.util.Recyclable in project dingo by dingodb.

the class Replicator method sendEntries.

/**
 * Send log entries to follower, returns true when success, otherwise false and unlock the id.
 *
 * @param nextSendingIndex next sending index
 * @return send result.
 */
private boolean sendEntries(final long nextSendingIndex) {
    LOG.debug("Send Entries to : " + this.options.getPeerId().getEndpoint() + " with Index : " + nextSendingIndex);
    final RpcRequests.AppendEntriesRequest.Builder rb = RpcRequests.AppendEntriesRequest.newBuilder();
    if (!fillCommonFields(rb, nextSendingIndex - 1, false)) {
        // unlock id in installSnapshot
        installSnapshot();
        return false;
    }
    ByteBufferCollector dataBuf = null;
    final int maxEntriesSize = this.raftOptions.getMaxEntriesSize();
    final RecyclableByteBufferList byteBufList = RecyclableByteBufferList.newInstance();
    try {
        for (int i = 0; i < maxEntriesSize; i++) {
            final RaftOutter.EntryMeta.Builder emb = RaftOutter.EntryMeta.newBuilder();
            if (!prepareEntry(nextSendingIndex, i, emb, byteBufList)) {
                break;
            }
            rb.addEntries(emb.build());
        }
        if (rb.getEntriesCount() == 0) {
            if (nextSendingIndex < this.options.getLogManager().getFirstLogIndex()) {
                installSnapshot();
                return false;
            }
            // _id is unlock in _wait_more
            waitMoreEntries(nextSendingIndex);
            return false;
        }
        if (byteBufList.getCapacity() > 0) {
            dataBuf = ByteBufferCollector.allocateByRecyclers(byteBufList.getCapacity());
            for (final ByteBuffer b : byteBufList) {
                dataBuf.put(b);
            }
            final ByteBuffer buf = dataBuf.getBuffer();
            buf.flip();
            rb.setData(ZeroByteStringHelper.wrap(buf));
        }
    } finally {
        RecycleUtil.recycle(byteBufList);
    }
    final RpcRequests.AppendEntriesRequest request = rb.build();
    if (LOG.isDebugEnabled()) {
        LOG.debug("Node {} send AppendEntriesRequest to {} term {} lastCommittedIndex {} prevLogIndex {} prevLogTerm {} logIndex {} count {}", this.options.getNode().getNodeId(), this.options.getPeerId(), this.options.getTerm(), request.getCommittedIndex(), request.getPrevLogIndex(), request.getPrevLogTerm(), nextSendingIndex, request.getEntriesCount());
    }
    this.statInfo.runningState = RunningState.APPENDING_ENTRIES;
    this.statInfo.firstLogIndex = rb.getPrevLogIndex() + 1;
    this.statInfo.lastLogIndex = rb.getPrevLogIndex() + rb.getEntriesCount();
    final Recyclable recyclable = dataBuf;
    final int v = this.version;
    final long monotonicSendTimeMs = Utils.monotonicMs();
    final int seq = getAndIncrementReqSeq();
    this.appendEntriesCounter++;
    Future<Message> rpcFuture = null;
    try {
        rpcFuture = this.rpcService.appendEntries(this.options.getPeerId().getEndpoint(), request, -1, new RpcResponseClosureAdapter<RpcRequests.AppendEntriesResponse>() {

            @Override
            public void run(final Status status) {
                // TODO: recycle on send success, not response received.
                RecycleUtil.recycle(recyclable);
                onRpcReturned(Replicator.this.id, RequestType.AppendEntries, status, request, getResponse(), seq, v, monotonicSendTimeMs);
            }
        });
    } catch (final Throwable t) {
        RecycleUtil.recycle(recyclable);
        ThrowUtil.throwException(t);
    }
    addInflight(RequestType.AppendEntries, nextSendingIndex, request.getEntriesCount(), request.getData().size(), seq, rpcFuture);
    return true;
}