static boolean sendChunk(InternalDistributedMember recipient, int processorId,
        DistributionManager dm, HeapDataOutputStream chunk, int seriesNum, int msgNum,
        int numSeries, boolean lastInSeries) {
      RemoteFetchKeysReplyMessage reply = new RemoteFetchKeysReplyMessage(recipient, processorId,
          chunk, seriesNum, msgNum, numSeries, lastInSeries);
      Set<?> failures = dm.putOutgoing(reply);
      return (failures == null) || (failures.size() == 0);
    }
@param a byte[] chunk
@param b positive if last chunk
@return true to continue to next chunk
geode-core/src/main/java/org/apache/geode/internal/cache/tx/RemoteFetchKeysMessage.java