Is the redis restart data still there

The data still exists after Redis restart. Redis stores data in memory, and restarting does not delete memory data. Redis also provides persistence, saving data to the hard disk via RDB or AOF files, ensuring that data can be recovered from persistent files after restart.

Does the data still exist after Redis restart?

Answer: Yes, the data still exists after Redis restart.

Detailed description:

Redis is an in-memory database that stores data in the memory of a server. Restarting the Redis server does not delete the data in memory, so the data still exists.

Redis provides persistence, allowing data to be saved from memory to persistent storage devices (such as hard disks). Persistence can be achieved in the following ways:

• RDB (Redis database file) persistence: Redis periodically dumps datasets in memory into a binary file (called RDB file). If the Redis server restarts, it will recover data from the RDB file.
• AOF (Attached File) Persistence: Redis logs all commands written to the database into a log file (called AOF file). If the Redis server restarts, it replays the commands in the AOF file to rebuild the dataset.

Depending on Redis' configuration, it can enable or disable persistence. If persistence is enabled, data is restored from the persistent file (RDB or AOF) after the Redis server restarts. If persistence is disabled, data in memory will be lost after the Redis server restarts.

Therefore, as long as the Redis server has persistence enabled, the data will still exist after Redis restarts.

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