1.
HandlerSocket

2.
HandlerSocket

3.
MySQL Plugin

4.
Handler

5.
Handler

6.
Handler

7.
HandlerSocket

8.
HandlerSocket plugin
Client for Java

9.
HandlerSocket plugin
Client for Java
http://code.google.com/p/handlersocketforjava/

10.
HandlerSocket plugin
Client for Java
https://github.com/ahiguti/HandlerSocket-Plugin-for-MySQL/blob/master/README

11.
HandlerSocket

12.
HandlerSocket
HandlerSocket hs = new HandlerSocket();
try{
(Java)
System.out.println("open connection.");
hs.open(host, port);
System.out.println("open index.");
hs.command().openIndex(id, db, table, index, fieldList);
System.out.println("operations.");
for(int i = 0 ; i <= size ; i++){
if(i != 0 && i % loop == 0){
System.out.println("tcommand size : " + hs.getCommandSize() + "byte");
List<HandlerSocketResult> results = hs.execute();
System.out.println("tresult size : " + hs.getCurrentResponseSize() + "byte");
if(verbose){
System.out.println("result.");
for(HandlerSocketResult result : results){
System.out.println("t" + result.toString());
}
}
if(i == size)
break;
}
String[] keys = new String[]{String.valueOf(i)};
hs.command().find(id, keys);
}
}finally{
System.out.println("close connection.");
hs.close();
}

13.
HandlerSocket

14.
Using MySQL as a NoSQL - A
story for exceeding 750,000 qps
on a commodity server
http://yoshinorimatsunobu.blogspot.com/2010/10/using-mysql-as-nosql-story-for.html

15.
Test Case1:TableA
JDBC(SQL)
HandlerSocket
400
300
average time(μs)
200
100
0
0 2500 5000 7500 10000
query per second

16.
Test Case2:TableB
JDBC(SQL)
HandlerSocket
70
52.5
average time(μs)
35
17.5
0
0 10000 20000 30000 40000
query per second

17.
Test Case3:TableB
JDBC(SQL)
HandlerSocket
1400
1050
average time(μs)
700
350
0
0 425 850 1275 1700
query per second

18.
monitoring result
(vmstat-disk io)

19.
monitoring result
(vmstat-context switch)

20.
monitoring result
(vmstat-CPU)