Not able to perform mass insertion in redis - redis

Question

I am working on centos 6. I want to perform mass insertion into redis cache from mySQL table that has more than 10 million records. I have already read about redis protocol and its format. I am able to copy table data into redis protocol format in text file. But when I try to execute pipe command an error is coming.
Error reading from the server: Connection reset by peer
or
ERR Protocol error: expected '$', got '3'
I am using following command:
cat insert.txt | redis-cli --pipe
insert.txt contains data in this format:
*3
$3
SET
$2
K1
$2
V1
If possible,please tell me format for multiple commands in this text file as in above example, this file only contains one set command. I will be thankful if you will give me example of text file which has at least two commands in it.
I have also tried file data in this format.
"*3\r\n$3\r\nSET\r\n$3\r\nkey\r\n$5\r\nvalue\r\n"
It gives the following error:
ERR unknown command '*3 $3 SET $3 key $5 value '

Answer 1

Right, so it's really important that you send the data with CRLF line separators -- not the string \r\n but actually those characters. This means no regular unix line endings, which is just LF, or \n.
How you insert those is depending on the editor you use, but the easiest way to work with what you have would be to have each symbol on it's own line:
*3
$3
SET
$2
K1
$2
V2
And use sed:
cat insert.txt | sed 's/$/\r/g' | redis-cli --pipe
Should do the trick.
Then, in order to send many commands in one go (pipelining), you just add that to the end of your file, like so:
*3
$3
SET
$2
K1
$2
V2
*3
$3
SET
$2
K2
$2
V3