Mass Delete redis-cli pipe mode

[Salimane Adjao Moustapha]

With the redis-cli pipe mode in 2.6 i tried to perform some mass delete but got some errors:

redis-cli --version            

redis-cli 2.6.2 (git:0dd62413)

cat keys.txt       

DEL "hello:sam:ffe947d8f38294bbe803ee215ce86a0c1351174734570"

DEL "hello:sam:ffe947afe1f5a77bb1321678c5c6fead1349924630583"

DEL "hello:sam:ffe9479eed8a7937b706c08fec49ebf71350532203343"

DEL "hello:sam:ffe94791cd8a220638d6049a9c38e1471347726367359"

cat keys.txt | redis-cli --pipe

All data transferred. Waiting for the last reply...

ERR unknown command '$4'

ERR wrong number of arguments for 'echo' command

ERR unknown command '$20'

ERR unknown command 'H�7 3^�6R���g:Ʉ�'

the following has no errors but doesn't delete any keys : 

cat keys.txt | xargs redis-cli --pipe

All data transferred. Waiting for the last reply...

Last reply received from server.

errors: 0, replies: 0

The following do work though :

cat keys.txt | redis-cli  

(integer) 0

(integer) 1

(integer) 1

(integer) 0

cat keys.txt | xargs redis-cli

(integer) 2

I'm trying not use the later 2 because of round trips and memory (I'm talking around 100 millions keys). So if pipe mode is designed for this, why is it not working ?

Thanks

[Didier Spezia]

>> I'm trying not use the later 2 because of round trips and memory (I'm talking around 100 millions keys). So if pipe mode is designed for this, why is it not working ?

Please read http://redis.io/topics/mass-insert

The --pipe mode input is supposed to be Redis protocol, not text commands.

You need to use something like this:

echo -n '*2\r\n$3\r\nDEL\r\n$4\r\ntoto\r\n' | ./redis-cli --pipe

Regards,

Didier.