Mysql5.1 handle socket testing and write the java code.

1. MYSQL Handler Socket
Philip zhong
5 .10 .2011

2. Outline
 Why using Handler Socket
 How to build Handler Socket Plug-in
 Handler Socket configuration parameter
 Handler Socket java client program
 Best Practice for java client
 Helpful sites

3. Why using Handler Socket

5. item with handlesocket without handlesocket
Process=16 and QPS:130429 QPS:95291
request=1000000*16 Mysql server Mysql server
Cpu(s): 29.0%us, 20.6%sy Cpu(s): 71.2%us, 20.8%sy
Process=32 and QPS:268294 QPS:103165
request=1000000*32 Mysql server Mysql server Cpu(s):
Cpu(s): 58.1%us, 27.8%sy 71.1%us, 21.1%sy
Process=64 and QPS:291960 QPS:104180
request=1000000*64 Mysql server Cpu(s): Mysql server Cpu(s):
58.8%us, 28.7%sy 71.3%us, 22.3%sy

6. How to build Handler Socket Plug-in

7. ./autogen.sh
./configure --
prefix=/home/oracle/mysql5.1.55/lib/mysql/pl
ugin --with-mysql-source=/package/mysql-
5.1.55 --with-mysql-
bindir=/home/oracle/mysql5.1.55/bin --with-
mysql-
plugindir=/home/oracle/mysql5.1.55/lib/mysql
/plugin
make
make install

8. mysql> install plugin handlersocket soname
'handlersocket.so';

9. Handler Socket configuration
parameter

10. • handlersocket_port (default = '9998')
• handlersocket_port_wr (default = '9999')
• handlersocket_threads (default = 16, min = 1, max = 3000)
• handlersocket_threads_wr (default = 1, min = 1, max = 3000)
• handlersocket_sndbuf (default = 0, min = 0, max = 1677216)
• handlersocket_rcvbuf (default = 0, min = 0, max = 1677216)
• handlersocket_readsize (default = 0, min = 0, max = 1677216)
• handlersocket_wrlock_timeout (default = 12, min = 0, max = 3600)
• handlersocket_timeout (default = 300, min = 30, max = 3600)
• open_files_limit = 65535
• innodb_buffer_pool_size =8G

11. Handler Socket java client program

12. Dependent Packages
hs4j-0.1.jar
log4j-1.2.8.jar
slf4j-api-1.5.6.jar
slf4j-log4j12-1.3.0.jar

13. Java Key methods(1)
• public HSClientImpl(InetSocketAddress
inetSocketAddress, int poolSize)
• public IndexSession openIndexSession(String
dbname, String tableName,String indexName,
String[] columns)
• public IndexSession openIndexSession(int
indexId, String dbname, String
tableName, String indexName, String[]
columns)

14. Java Key methods(2)
• public boolean insert(String[] values)
• public int delete(String[] keys)
• public int delete(String[] keys, FindOperator
operator)
• public int delete(String[] keys, FindOperator
operator, int limit,int offset)
• public int update(String[] keys, String[] values,
FindOperator operator)

15. Java Key methods(3)
• public int update(String[] keys, String[] values,
FindOperator operator,int limit, int offset)
• public ResultSet find(String[] keys)
• public ResultSet find(String[] keys,
FindOperator operator, int limit,int offset)
• public ModifyStatement createStatement()

16. Create the MYSQL tables
create table mt_data
(
guid varchar(18) not null,
orgid int(9) not null,
tabid int(9) not null,
name varchar(128) not null,
IsDeleted char(1) not null,
createtime datetime not null,
modifytime datetime not null,
....
primary key(guid,orgid)
) ENGINE=InnoDB CHARSET=utf8;

17. Java example code fragment
• HSClient hsClient = new HSClientImpl(new
InetSocketAddress("10.224.56.188", 9999), connectionPoolSize);
• final String[] columns = { "guid", "orgid", "tabid", "name",
"IsDeleted", "createtime", "modifytime", "value0",
"value1", "value2", "value3", "value4", "value5", "value6",
"value7", "value8", "value9", "value10", "value11",
"value12", "value13", "value14", "value15" };
IndexSession session =
hsClient.openIndexSession("meetingdb","mt_data", "PRIMARY",
columns);
• Bind values
final String[] values3 = new String[9];
values3[0] = guid;
values3[1] = "1";
……
• session.insert(values)
• hsClient.shutdown();

18. Best Practice for java client

19. • HSClient is thread-safe, so you must use it as
SINGLETON object in your application.
• Open index is an expensive operation, so
reuse an opened index id as much as possible.
• IndexSession is thread-safe,so please reuse an
opened IndexSession as much as possible.
• Use IndexSession rather than HSClient
• Use ModifyStatement to insert/update data

20. ModifyStatement example code
ModifyStatement stmt =
this.session.createStatement();
stmt.setInt(1, 0);
stmt.setString(2, "dennis");
stmt.setInt(4, 27);
stmt.setString(5, "2010-11-28 13:24:00");
stmt.update(keys, FindOperator.EQ);

21. Helpful sites

22. • http://code.google.com/p/hs4j/
• http://yoshinorimatsunobu.blogspot.com/201
0/10/using-mysql-as-nosql-story-for.html
• https://github.com/ahiguti/HandlerSocket-
Plugin-for-MySQL