spark1.6.3
elasticsearch 5.4
bulk api
```
(Netty4Utils:117)-NoSuchMethodError io.netty.buffer.CompositeByteBuf.addComponents(ZLjava/lang/Iterable;)Lio/netty/buffer/CompositeByteBuf; at org.elasticsearch.transport.netty4.Netty4Utils.toByteBuf(Netty4Utils.java:78) at org.elasticsearch.transport.netty4.Netty4Transport.sendMessage(Netty4Transport.java:422) at org.elasticsearch.transport.netty4.Netty4Transport.sendMessage(Netty4Transport.java:93) at org.elasticsearch.transport.TcpTransport.internalSendMessage(TcpTransport.java:1058) at org.elasticsearch.transport.TcpTransport.sendRequestToChannel(TcpTransport.java:1040)
```
解决方案
```
.put("transport.type","netty3") .put("http.type", "netty3")
```