kangkaisen commented on issue #549: Add a colocate join meta repair tool
URL: https://github.com/apache/incubator-doris/issues/549#issuecomment-455975626
 
 
   for java Http client 
   ```
           Request request = asyncHttpClient.preparePut(url).setBody(content)
                   .setHeader("Expect", "100-continue")
                   .setHeader("Authorization", basicAuthHeader())
                   .setFollowRedirect(true)
                   .build();
   
           Response response =  asyncHttpClient.executeRequest(request).get();
   ```
   the code will run into `MessageAggregator`. `decode`:
   ```
               // Merge the received chunk into the content of the current 
message.
               CompositeByteBuf content = (CompositeByteBuf) 
currentMessage.content();
   ```
   which is normal.
   
   but for curl client,  the code will not  run into above line and will 
finally run into `ByteToMessageDecoder`
   ```
       /**
        * Called when the input of the channel was closed which may be because 
it changed to inactive or because of
        * {@link ChannelInputShutdownEvent}.
        */
       void channelInputClosed(ChannelHandlerContext ctx, List<Object> out) 
throws Exception {
           if (cumulation != null) {
               callDecode(ctx, cumulation, out);
               decodeLast(ctx, cumulation, out);
           } else {
               decodeLast(ctx, Unpooled.EMPTY_BUFFER, out);
           }
       }
   ```
   so the curl client will get a error.

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