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November 1, 2017 09:27
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transfer redis database
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| #!/bin/bash | |
| from="redis-cli -n 1" | |
| to="redis-cli -n 5" | |
| while read key; | |
| do | |
| $to del $key | |
| $from --raw dump $key | head -c-1 | $to -x restore $key 0 | |
| done < <($from --scan) |
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redis 不提供 dump/restore 这样的命令行工具来迁移整个数据库。所以使用 redis-cli 的 dump/restore 命令来一次性迁移所有key。
因为在某些情况（例如我所使用的阿里云redis）无法替换redis服务器的 rdb 文件。