如何使用Redis批量插入? [英] How to use Redis mass insertion?

问题描述

我已经阅读了 redis.io 提供的 mass-insert，但它真的让我感到困惑.我尝试制作一个文件，然后使用cat data.txt | redis-cli --pipe"插入:

I've read mass-insert provided at redis.io, but it really confused me. I tried to make a file then use "cat data.txt | redis-cli --pipe" to insert:

    SET Key0 Value0
    SET Key1 Value1
    SET Key2 Value3

然后我得到了这个:

Then I got this:

    All data transferred. Waiting for the last reply...
    ERR wrong number of arguments for 'set' command
    ERR unknown command '$4'
    ERR wrong number of arguments for 'echo' command
    ERR unknown command '$20'

我也试过

I also tried

    *3<cr><lf>
    $3<cr><lf>
    SET<cr><lf>
    $3<cr><lf>
    key<cr><lf>
    $5<cr><lf>
    value<cr><lf>

然后我得到了这个:ERR 协议错误:无效的多块长度

Then I got this: ERR Protocol error: invalid multi bulk length

这真的让我很困惑.谁能给我一个简单的例子?非常感谢.

It really make me confused. Can anyone give me a simple example? Thank you very much.

推荐答案

这里是:

echo -n '*3\r\n$3\r\nset\r\n$3\r\nkey\r\n$5\r\nvalue\r\n' | ./redis-cli --pipe
All data transferred. Waiting for the last reply...
Last reply received from server.
errors: 0, replies: 1

您的问题可能来自 cr+lf 分隔符.您可以使用 hexdump -C 命令来检查这一点:

Your problem probably comes from the cr+lf separators. You can use the hexdump -C command to check this point:

echo -n '*3\r\n$3\r\nset\r\n$3\r\nkey\r\n$5\r\nvalue\r\n' | hexdump -C
00000000  2a 33 0d 0a 24 33 0d 0a  73 65 74 0d 0a 24 33 0d  |*3..$3..set..$3.|
00000010  0a 6b 65 79 0a 0d 24 35  0d 0a 76 61 6c 75 65 0d  |.key..$5..value.|
00000020  0a                                                |.|
00000021

此外，您可能需要检查您的目标是最近的 Redis 实例，而不是 pre-1-2 版本(不支持统一协议").

Also, you may want to check your target is a recent Redis instance and not a pre-1-2 version (which does not support the "unified protocol").

注意:以上几行在 zsh 上运行良好.如果使用 bash，则需要在引用前添加 $ 以触发 ANSI-C 引用:

Note: the above lines works fine with zsh. If you use bash, you need to add a $ before the quote to trigger ANSI-C quoting:

echo -n $'*3\r\n$3\r\nset\r\n$3\r\nkey\r\n$5\r\nvalue\r\n' | hexdump -C

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