What is the difference between Redis and Kafka?

< 1 min readRedis and Kafka are both open-source, distributed systems, but they are used for different purposes and have different design goals. Redis is an in-memory data store that is used as a database, cache, and message broker. It is often referred to as a “NoSQL” database, as it does not use the traditional table-based relational model…

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How to empty a Redis database?

< 1 min readTo empty a specific Redis database, you can use the “FLUSHDB” command. This command removes all the keys from the current database. You can run the command in the redis-cli by typing: You can also use the python redis library to empty a specific Redis database: It’s important to note that before using the FLUSHDB…

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How to connect with the remote Redis server?

< 1 min readTo connect to a remote Redis server, you can use the “redis-cli” command with the “connect” option. This option allows you to specify the host and port of the remote Redis server you want to connect to. You can run the command in the command line by typing: Where “host” is the IP address or…

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How to list all databases in Redis?

< 1 min readIntroduction Redis is an open-source, in-memory key-value data store. Redis stores data directly in the memory rather than on disk which helps deliver unparallel speed, reliability and performance. Storing data directly in memory helps applications reduce the latency and throughput which helps improve the performance bottleneck, especially as traffic increases or applications scale. In this…

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How to check the Redis version?

< 1 min readTo check the version of Redis that is currently running, you can use the “redis-cli” command with the “info” command. This command returns a variety of information about the Redis server, including the version number. You can run the command in the command line by typing: This command shows the version of Redis server running,…

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What is Redis?

2 min readRedis is an open-source, in-memory data structure store that is used as a database, cache, and message broker. It is often referred to as a “NoSQL” database, as it does not use the traditional table-based relational model used by SQL databases. Instead, it uses a key-value store model, which allows for extremely fast data retrieval…

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How to start and stop a Redis server?

< 1 min readTo start a Redis server, you can use the “redis-server” command in the command line. This command starts the Redis server and listens for connections on the default port (6379). You can run the command in the command line by typing: You can also specify a configuration file using the redis-server command, the path of…

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How to get all available keys in Redis?

< 1 min readTo get all available keys in Redis, you can use the “KEYS” command. This command takes a pattern as an argument and returns all keys that match the pattern. You can run the command in the redis-cli by typing: where “pattern” is the pattern you want to match. For example, to get all keys that…

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How to delete everything in Redis?

< 1 min readTo delete everything in Redis, you can use the “FLUSHALL” command. This command will remove all keys from all databases in the Redis instance. You can run the command in the redis-cli by typing: or in python redis library Please be careful when using this command, as it will permanently delete all data stored in…

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How to setup an auth.json file for Composer?

< 1 min readComposer uses an auth.json file to authenticate with private package repositories. The file is usually located in your home directory and is named “.composer/auth.json”. Here’s an example of what the contents of an auth.json file might look like: The http-basic key is used to authenticate with repositories that use basic authentication. The value is an…

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