Why is the save configuration item annotated in redis.conf, and the last written data still exists in redis after restarting the server?

  node.js, question

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Why did RT annotate the save configuration item in redis.conf, and the last written data still exists in redis after restarting the server? After I finished commenting, I also cleared all the data in the library, but after a few days, I suddenly found that the data written before restarting after restarting the server was still in it. I specially checked the configuration file and found that there was no problem. . .

You should not delete the file persisted by redis. The default name is dump.rdb