コード例 #1
0
  /** Return all of the neighbors with whom we share the provided range. */
  static Set<InetAddress> getNeighbors(String table, Range<Token> toRepair) {
    StorageService ss = StorageService.instance;
    Map<Range<Token>, List<InetAddress>> replicaSets = ss.getRangeToAddressMap(table);
    Range<Token> rangeSuperSet = null;
    for (Range<Token> range : ss.getLocalRanges(table)) {
      if (range.contains(toRepair)) {
        rangeSuperSet = range;
        break;
      } else if (range.intersects(toRepair)) {
        throw new IllegalArgumentException(
            "Requested range intersects a local range but is not fully contained in one; this would lead to imprecise repair");
      }
    }
    if (rangeSuperSet == null || !replicaSets.containsKey(toRepair)) return Collections.emptySet();

    Set<InetAddress> neighbors = new HashSet<InetAddress>(replicaSets.get(rangeSuperSet));
    neighbors.remove(FBUtilities.getBroadcastAddress());
    // Excluding all node with version <= 0.7 since they don't know how to
    // create a correct merkle tree (they build it over the full range)
    Iterator<InetAddress> iter = neighbors.iterator();
    while (iter.hasNext()) {
      InetAddress endpoint = iter.next();
      if (Gossiper.instance.getVersion(endpoint) <= MessagingService.VERSION_07) {
        logger.info(
            "Excluding "
                + endpoint
                + " from repair because it is on version 0.7 or sooner. You should consider updating this node before running repair again.");
        iter.remove();
      }
    }
    return neighbors;
  }
コード例 #2
0
    @Override
    public void init(String keyspace) {
      Iterator<InetAddress> hostiter = hosts.iterator();
      while (hostiter.hasNext()) {
        try {
          // Query endpoint to ranges map and schemas from thrift
          InetAddress host = hostiter.next();
          Cassandra.Client client =
              createThriftClient(
                  host.getHostAddress(), rpcPort, this.user, this.passwd, this.transportFactory);

          setPartitioner(client.describe_partitioner());
          Token.TokenFactory tkFactory = getPartitioner().getTokenFactory();

          for (TokenRange tr : client.describe_ring(keyspace)) {
            Range<Token> range =
                new Range<>(
                    tkFactory.fromString(tr.start_token),
                    tkFactory.fromString(tr.end_token),
                    getPartitioner());
            for (String ep : tr.endpoints) {
              addRangeForEndpoint(range, InetAddress.getByName(ep));
            }
          }

          String query =
              String.format(
                  "SELECT * FROM %s.%s WHERE keyspace_name = '%s'",
                  Keyspace.SYSTEM_KS, SystemKeyspace.SCHEMA_COLUMNFAMILIES_CF, keyspace);
          CqlResult result =
              client.execute_cql3_query(
                  ByteBufferUtil.bytes(query), Compression.NONE, ConsistencyLevel.ONE);
          for (CqlRow row : result.rows) {
            CFMetaData metadata = CFMetaData.fromThriftCqlRow(row);
            knownCfs.put(metadata.cfName, metadata);
          }
          break;
        } catch (Exception e) {
          if (!hostiter.hasNext())
            throw new RuntimeException("Could not retrieve endpoint ranges: ", e);
        }
      }
    }