Memcached memory usage

Question

Is there any command line or php script which returns the memcached total memory usage?

score 41 · Accepted Answer · answered Nov 15 '10 at 02:56

41

As Mike said, you can look at the line including the "STAT bytes" to see memory usage:

$ echo "stats" | nc -w 1 <host> <port> | awk '$2 == "bytes" { print $2" "$3 }'

answered Nov 15 '10 at 02:56

quanta

1

Leaving that for future reference: The default host/port is: 127.0.0.1:11211 – Moritur Feb 08 '17 at 12:25
So just type in console: echo "stats" | nc -w 1 localhost 11211 | awk '$2 == "bytes" { print $2" "$3 }' – jobima Apr 17 '20 at 08:11
1

More verbose `echo "stats" | nc -w 1 localhost 11211 | awk '$2 ~ "bytes" { print $2" - "$3/1024/1024 " MB" }'` – user3148949 Dec 04 '21 at 06:21

score 19 · Answer 2 · answered Nov 15 '10 at 00:46

19

memcache's default port is 11211 so if memcache is local

telnet localhost 11211

Then run the stats command and that will spit out memory usage

stats

answered Nov 15 '10 at 00:46

Mike

1

Thanks for the telnet tip, but what should I really read in there? I see STAT bytes 9857275 STAT curr_items 43599 STAT total_items 1048925 and I have the impression that my memcached is never filling up... – Stefano Dec 06 '11 at 22:13
6

STAT bytes is the line you are looking for total usage – Mike Dec 07 '11 at 02:19

score 4 · Answer 3 · answered Nov 02 '11 at 17:55

4

I personally use PhpMemcacheAdmin

It creates an easy to use GUI. Of course you'll need to have PHP support.

answered Nov 02 '11 at 17:55

jaredsten

The site has moved to : http://blog.elijaa.org/phpmemcachedadmin-download-version-1-2-2/ – Michal Przybylowicz Aug 16 '16 at 11:34
2

Moved again to https://github.com/wp-cloud/phpmemcacheadmin :) – vikramaditya234 Jun 04 '19 at 05:02

score 1 · Answer 4 · answered Aug 14 '17 at 19:33

1

Another alternative to answer @mike,

echo "stats" | nc localhost 11211
#or
echo "stats settings" | nc localhost 11211

answered Aug 14 '17 at 19:33

DarckBlezzer

score 0 · Answer 5 · answered May 14 '20 at 16:11

0

If you are using php:

$m = new Memcached();
$m->addServer('localhost', 11211);
echo $m->getStats()['localhost:11211']['bytes'];

answered May 14 '20 at 16:11

Eaten by a Grue

5 Answers5