你知道吗，如何在memcached中使用ADD命令？

Question

I'm using in my project many counters by memcached:

$data = $mc->set('sasa', 100);
$data = $mc->get('sasa');
var_dump($data);
$res =  $mc->add('sasa', 100);
var_dump($res);

result is

int(100)
bool(false)
int(100)

If I use memcached native protocol:

get sasa
VALUE sasa 1 3
100
END
add sasa 0 0 1
1
NOT_STORE
get sasa 
VALUE sasa 1 3
100
END

ADD command is not work. https://github.com/memcached/memcached/blob/master/doc/protocol.txt#L132

Do You know, how to use ADD command in the memcached?

Answer 1

It may be that the usage of memory has reach the limit. Check it please, if yes, change the limit value in your config file.