This document discusses the HandlerSocket plugin for MySQL. It provides a Java client for HandlerSocket that allows high-performance operations on MySQL databases. Code examples are given showing how to open a connection, execute commands, and retrieve results. Performance test results are also presented showing HandlerSocket outperforming standard JDBC access in terms of query response times. System monitoring outputs are displayed relating to disk I/O, context switching, and CPU usage.

1. HandlerSocket

2. HandlerSocket

3. MySQL Plugin

4. Handler

6. Handler

7. Handler

8. HandlerSocket

9. HandlerSocket plugin
Client for Java

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

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

12. HandlerSocket

13. 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();
}

14. HandlerSocket

16. 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

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

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

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

21. monitoring result
(vmstat-disk io)

22. monitoring result
(vmstat-context switch)

23. monitoring result
(vmstat-CPU)