Examples with Message org.apache.cassandra.net.Message used on opensource projects

Example 11 with Message

use of org.apache.cassandra.net.Message in project eiger by wlloyd.

the class GossipDigestSynVerbHandler method doVerb.

public void doVerb(Message message, String id) {
    InetAddress from = message.getFrom();
    if (logger_.isTraceEnabled())
        logger_.trace("Received a GossipDigestSynMessage from {}", from);
    if (!Gossiper.instance.isEnabled()) {
        if (logger_.isTraceEnabled())
            logger_.trace("Ignoring GossipDigestSynMessage because gossip is disabled");
        return;
    }
    byte[] bytes = message.getMessageBody();
    DataInputStream dis = new DataInputStream(new FastByteArrayInputStream(bytes));
    try {
        GossipDigestSynMessage gDigestMessage = GossipDigestSynMessage.serializer().deserialize(dis, message.getVersion());
        /* If the message is from a different cluster throw it away. */
        if (!gDigestMessage.clusterId_.equals(DatabaseDescriptor.getClusterName())) {
            logger_.warn("ClusterName mismatch from " + from + " " + gDigestMessage.clusterId_ + "!=" + DatabaseDescriptor.getClusterName());
            return;
        }
        List<GossipDigest> gDigestList = gDigestMessage.getGossipDigests();
        if (logger_.isTraceEnabled()) {
            StringBuilder sb = new StringBuilder();
            for (GossipDigest gDigest : gDigestList) {
                sb.append(gDigest);
                sb.append(" ");
            }
            logger_.trace("Gossip syn digests are : " + sb.toString());
        }
        /* Notify the Failure Detector */
        Gossiper.instance.notifyFailureDetector(gDigestList);
        doSort(gDigestList);
        List<GossipDigest> deltaGossipDigestList = new ArrayList<GossipDigest>();
        Map<InetAddress, EndpointState> deltaEpStateMap = new HashMap<InetAddress, EndpointState>();
        Gossiper.instance.examineGossiper(gDigestList, deltaGossipDigestList, deltaEpStateMap);
        GossipDigestAckMessage gDigestAck = new GossipDigestAckMessage(deltaGossipDigestList, deltaEpStateMap);
        Message gDigestAckMessage = Gossiper.instance.makeGossipDigestAckMessage(gDigestAck, message.getVersion());
        if (logger_.isTraceEnabled())
            logger_.trace("Sending a GossipDigestAckMessage to {}", from);
        MessagingService.instance().sendOneWay(gDigestAckMessage, from);
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}

Example 12 with Message

use of org.apache.cassandra.net.Message in project eiger by wlloyd.

the class Gossiper method makeGossipDigestSynMessage.

Message makeGossipDigestSynMessage(List<GossipDigest> gDigests, int version) throws IOException {
    GossipDigestSynMessage gDigestMessage = new GossipDigestSynMessage(DatabaseDescriptor.getClusterName(), gDigests);
    FastByteArrayOutputStream bos = new FastByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(bos);
    GossipDigestSynMessage.serializer().serialize(gDigestMessage, dos, version);
    return new Message(FBUtilities.getBroadcastAddress(), StorageService.Verb.GOSSIP_DIGEST_SYN, bos.toByteArray(), version);
}

Example 13 with Message

use of org.apache.cassandra.net.Message in project eiger by wlloyd.

the class IndexScanVerbHandler method doVerb.

public void doVerb(Message message, String id) {
    try {
        IndexScanCommand command = IndexScanCommand.read(message);
        ColumnFamilyStore cfs = Table.open(command.keyspace).getColumnFamilyStore(command.column_family);
        List<Row> rows = cfs.search(command.index_clause.expressions, command.range, command.index_clause.count, QueryFilter.getFilter(command.predicate, cfs.getComparator()));
        RangeSliceReply reply = new RangeSliceReply(rows);
        Message response = reply.getReply(message);
        if (logger.isDebugEnabled())
            logger.debug("Sending " + reply + " to " + id + "@" + message.getFrom());
        MessagingService.instance().sendReply(response, id, message.getFrom());
    } catch (Exception ex) {
        throw new RuntimeException(ex);
    }
}

Example 14 with Message

use of org.apache.cassandra.net.Message in project eiger by wlloyd.

the class MigrationManager method makeMigrationMessage.

// other half of transformation is in DefinitionsUpdateResponseVerbHandler.
private static Message makeMigrationMessage(Collection<IColumn> migrations, int version) throws IOException {
    FastByteArrayOutputStream bout = new FastByteArrayOutputStream();
    DataOutputStream dout = new DataOutputStream(bout);
    dout.writeInt(migrations.size());
    // problem during upgrades.
    for (IColumn col : migrations) {
        assert col instanceof Column;
        ByteBufferUtil.writeWithLength(col.name(), dout);
        ByteBufferUtil.writeWithLength(col.value(), dout);
    }
    dout.close();
    byte[] body = bout.toByteArray();
    return new Message(FBUtilities.getBroadcastAddress(), StorageService.Verb.DEFINITIONS_UPDATE, body, version);
}

Example 15 with Message

use of org.apache.cassandra.net.Message in project eiger by wlloyd.

the class RangeSliceResponseResolver method resolve.

// Note: this would deserialize the response a 2nd time if getData was called first.
// (this is not currently an issue since we don't do read repair for range queries.)
public Iterable<Row> resolve() throws IOException {
    ArrayList<RowIterator> iters = new ArrayList<RowIterator>(responses.size());
    int n = 0;
    for (Message response : responses) {
        RangeSliceReply reply = RangeSliceReply.read(response.getMessageBody(), response.getVersion());
        n = Math.max(n, reply.rows.size());
        iters.add(new RowIterator(reply.rows.iterator(), response.getFrom()));
    }
    // for each row, compute the combination of all different versions seen, and repair incomplete versions
    // TODO do we need to call close?
    CloseableIterator<Row> iter = MergeIterator.get(iters, pairComparator, new Reducer());
    List<Row> resolvedRows = new ArrayList<Row>(n);
    while (iter.hasNext()) resolvedRows.add(iter.next());
    return resolvedRows;
}