JDB(v. 3.3-stable)

JDB is very fast parallel database based on json text plain with encryptation

JDB 2.3-stable it's still available but deprecated

Library maked by Laky64

JDB Bechmark

	PHP	Python	Mode	Thread Mode
One Thread	15ms	37ms	Sequential	Single Thread
Two Thread	47ms	85ms	Async	Multi Thread
Four Thread	79ms	149ms	Async	Multi Thread
Eight Thread	143ms	133ms	Async	Multi Thread
Twelve Thread	207ms	402ms	Async	Multi Thread

JDB Structure

Below is how the JDB database is structured

JDB Core Structure

DATABASE	PASSWORD
database1	password1
database2	password2
database3	password3

Database Structure

TABLE	PRIMARY KEY	PRIMARY KEY TYPE
table1	primary_key1	primary_key_type1
table2	primary_key2	primary_key_type2
table3	primary_key3	primary_key_type3

Table Structure

	COLUMN1	COLUMN2	COLUMN3
ROW1	value1	value2	value3
ROW2	value1	value2	value3
ROW3	value1	value2	value3

JDB Core Threads

In the JDB core there are different types of threads each with different jobs, here it is:

• Controller Unit Thread It divides the workload on the various Operation Threads according to the freest one
• I/O Thread It performs backups to disk every 500ms from RAM Database
• Operation Thread It performs computation or query operations, usually more than one of these threads are started

Getting Started

Now Available in Async Multi-Thread, supported Windows Environment and Python Client!

First create the database folder, then create in the database folder with the name of the table to which you want to attribute, in which you want to insert the fields

Installation with composer

With json file (Composer):

{
    ...
    "require": {
        "laky64/jdb": "*"
    }
}

With command line (Composer):

- composer require laky64/jdb

Warning!

Read this documentation carefully so as not to cause malfunctions with JDB

JDB CORE

Requirements:

• PHP > 7.4
• PHP OpenSSL
• PHP Memcache
• Memcached Server
• AmpPHP

Type of Threads Available

• Two Thread 1 I/O Thread, 1 Controller Unit and 2 Operation Thread (Very fast but not optimized for multiple connections)
• Four Thread 1 I/O Thread, 1 Controller Unit and 4 Operation Thread (Fast and optimized for mid level of multiple connections)
• Eight Thread 1 I/O Thread, 1 Controller Unit and 8 Operation Thread (Slow but optimized for high level of multiple connections)
• Twelve Thread 1 I/O Thread, 1 Controller Unit and 12 Operation Thread (Very slow but optimized for very high level of multiple connections)

Make runner for local JDB Server

First you need to run a Memcached Server without stopping, then create a php file to run the JDB Core without stopping (Suggested one for server)

header('Content-Type: text/plain'); //For make readable JDBC Core results
ini_set('memory_limit', '2048M'); //For avoid a memory overload
use laky64\database\JDB_CORE;
include 'vendor/autoload.php';
new JDB_CORE(JDB_CORE::NUM_THREAD, 'database_folder', 'ip_memcached_server', 'port_memcached_server');

Available Clients

• PHP Client
• Python Client

Contributing

Pull requests are welcome. For major changes, please open an issue first to discuss what you would like to change.

Please make sure to update tests as appropriate.

License

MIT