Voldemort Installation and Use

Voldemort is an open source distributed key value storage system that can be used for high-throughput distributed storage and access to large-scale data. The following is an introduction to the installation and usage of the Voldemort database, as well as some examples, including creating data tables, inserting, modifying, querying, and deleting data. ##Voldemort Installation Process 1. Download the Voldemort installation package: You can download it from the official website（ https://www.project-voldemort.com/downloads.html ）Download the latest Voldemort installation package. Select the version that is suitable for your operating system, download and extract it to the target folder. 2. Configure the Voldemort cluster: Open the Voldemort installation directory and enter the 'config' folder. There is a 'server. properties' file in this folder, which is the main configuration file for Voldemort. You can modify this file according to your own needs. 3. Configure storage nodes: There is a 'stores. xml' file in the 'config' folder, which is the configuration file for the Voldemort storage node. In this file, the structure of the data table and replication strategies for different nodes can be defined. You can modify the 'stores. xml' file to meet your needs as described in the document. 4. Start the Voldemort cluster: Open the command line terminal in the Voldemort installation directory and run the following command to start the Voldemort cluster: bin/voldemort-server.sh config/server.properties 5. Verify if Voldemort started successfully: Run the following command to verify if Voldemort started successfully: telnet localhost 6666 If the connection is successful and relevant information is returned, it indicates that Voldemort has started correctly. ##Create Data Table 1. Create a storage area: In the command line terminal of the Voldemort installation directory, run the following command to create a storage area: bin/voldemort-admin.sh --bootstrap-url tcp://localhost:6666 --node-id 0 --store-name my-store --fetch-keys Among them, 'my store' is the name of the storage area you want to create. 2. Define data table structure: Open the command line terminal of the Voldemort installation directory and run the following command to define the data table structure: bin/voldemort-shell.sh bootstrap-put tcp://localhost:6666 my-store some_key '{"field1":"value1", "field2":"value2", ...}' Where 'my store' is the name of the storage area you want to create, and 'some'_ Key 'is the key of the data table you want to create,' field1 'and' field2 'are the field names of the data table, and' value1 'and' value2 'are the values of the corresponding fields. ##Data insertion, modification, query, and deletion 1. Insert Data: You can insert data into the data table by running the following command: bin/voldemort-shell.sh put tcp://localhost:6666 my-store some_key '{"field1":"new_value1", "field2":"new_value2", ...}' Among them, 'new'_ Value1 ',' new '_ Value2 'is the new field value. 2. Modify data: You can modify the data in the data table by running the following command: bin/voldemort-shell.sh put tcp://localhost:6666 my-store some_key '{"field1":"updated_value1", "field2":"updated_value2", ...}' Among them, 'updated'_ Value1 ',' updated '_ Value2 'is the updated field value. 3. Query data: You can query the data in the data table by running the following command: bin/voldemort-shell.sh get tcp://localhost:6666 my-store some_key This will return the JSON object containing the key of the data table. 4. Delete data: You can delete data from the data table by running the following command: bin/voldemort-shell.sh delete tcp://localhost:6666 my-store some_key The above is the installation, usage introduction, and some examples of the Voldemort database. There are other advanced usage and functions that can be found in the official documentation, and you can perform more operations and configurations according to your own needs.