1.
RPC Protocols
HAN O SEOK

2.
RPC
• Remote Procedure Calls
• Client-Server based Application

3.
History
• Xerox - Courier
• Apollo Computer - Network Computing
Architecture
• RPC ver. 1 (RFC 1050)
• RPC ver. 2 (RFC 5531)

4.
How Works
Client Server
call rpc function
call service
service executes
request completes
return reply
progrma continues
execute requests

5.
RPC Protocols
SOAP
XML-RPC
JSON-RPC
MSMQ
DTC
RMIThrift
Protocol Buffers
AVRO
.NET Remoting
CORBA
Pyro
DRb

6.
Interface Layer
• High Level Layer - Existed API Call
• Middle Level Layer - Create API By rpcgen
Compiler
• Low Level Layer - Create RCP API

7.
Network Layer & Data
XML ETC JSON
HTTP SOAP
XML-RPC
XML-JSON
avro
TCP/IP thrift
ProtoBuf
thrift
avro
Named
Pipe
IPX

8.
XML-RPC
• HTTP Based POST Request
• Contents of Large Size
• Easy Implementation

9.
Thrift
• Facebook (By X-Googler)
• Numbers of Language Support
C++, C#, Java, Erlang, Haskell, Objective C,
Perl, PHP, Python, Ruby, Squeak
Javascript, Node.js, Smalltalk, OCaml

10.
Thrift on Java
• Ivy (http://ant.apache.org/ivy/)
• lib-thrift
• Support Thrift Server & Client

11.
Thrift Type
• Base Types
boolean, byte, i16, i32, i64 (Signed Integer)
double, string
• Structs
• Containers
list, set, map
• Exceptions
• Services

12.
Thrift Stub Example

13.
Thrift Stub Example

14.
Thrift Stub Example

15.
Thrift Request
• JSONProtocol
[1,”hello”,1,2,{“1”:”str”:hanoseok”}}]
• SimpleJSONProtocol
[“hello”,1,1,{“name”:”hanoseok”}]
• CompactProtocol
?hellohanoseok
• BinaryProtocol

16.
Avro
• HTTP, UDP,TCP Supports
• JSON
• Support Languages
C, C++, Java, Python, Ruby, PHP

17.
Avro differs
• Dynamic Typing - without code generation
• Untagged data - smaller serialization size by
less type information

18.
Avro Files
• .avpr : Protocol File
• .avsc : Schema File
• .genavro : Generate Avro File

19.
Avro Stub Example
• Create Protocol File Using genavro File

20.
Avro Stub Example
• Create Java Stup Using Protocol File

21.
Avro Stub Example

22.
Protocol Buffers
• ProtoBuf Runtime Only provides
serialization and deserialization
• Just generate STUB
• Support Languages : C++, Java, Python

23.
ProtoBuf Stub Example

24.
ProtoBuf Stub Example

25.
• Thrift
Cassandra, HBase, Evernote API, Facebook
• Avro
Cassandra, HBase
• Protocol Buffers
Google Data Communications,
Google App Engine
USING

26.
Comparison
• Language Support :
Thrift > Avro >ProtoBuf
• Scalability :
ProtoBuf > Thrift > Avro
• (De)Serialization Speed :
thrift >= ProtoBuf >= Avro
• Documenation :
ProtoBuf > Avro = Thrift

27.
Performance
• https://github.com/eishay/jvm-serializers/wiki/

28.
Thanks