Apache Ignite Installation and Use

Apache Ignite is an in memory Distributed database that has powerful parallel computing capabilities and supports SQL. The following is an introduction to the installation and use of Apache Ignite: 1. Install the Java runtime environment: Ensure that the Java runtime environment (JRE) or Java development kit (JDK) is installed and configured with the correct environment variables. 2. Download Apache Ignite: on the official website of Apache Ignite（ https://ignite.apache.org/ ）Download the latest version of Apache Ignite and unzip it to the directory of your choice. 3. Configure Apache Ignite: In the decompression directory of Apache Ignite, open the 'config' folder and edit the 'ignite config. xml' configuration file. -Configure nodes and clusters: Modify the IP address and port number in the "<ipFinder>" node under the "<discoverySpi>" node to configure communication and cluster construction between Ignite nodes. -Configure Data Table: Under the '<dataStorage Configuration>' node, configure the relevant information of the data table. You can set the name, index, partition, number of backups, etc. of the data table. 4. Start Apache Ignite: On the command line, enter the decompression directory of Apache Ignite and execute the following command to start the Ignite node: ./bin/ignite.sh ./config/ignite-config.xml 5. Create a data table: You can create a data table through code or SQL statements. The following is an example of using SQL statements to create a data table: sql CREATE TABLE Person ( id INT(11) PRIMARY KEY, name VARCHAR(50), age INT(3) ) 6. Data insertion, modification, query, and deletion: Data insertion, modification, query, and deletion can be performed through code or SQL statements. The following is an example of using SQL statements for data operations: -Insert data: sql INSERT INTO Person (id, name, age) VALUES (1, 'Alice', 25) -Modify data: sql UPDATE Person SET age = 26 WHERE id = 1 -Query data: sql SELECT * FROM Person WHERE age > 20 -Delete data: sql DELETE FROM Person WHERE id = 1 This completes the installation and use of Apache Ignite. You can further learn and master more features and usage of Apache Ignite according to your own needs.