On 1/30/13 3:37 PM, Matthew Flaschen wrote:
On 01/30/2013 05:11 PM, Ryan Lane wrote:
Looking on the instance, in dmesg I see segfaults:
[3014246.521105] memcached[13216]: segfault at 0 ip 000000000040d525 sp
00007ffbc8336a90 error 4 in memcached[400000+18000]
That said, memcache is configured on that instance to use 2GB of memory:
/usr/bin/memcached -m 2000 -p 11000 -u nobody -l 127.0.0.1 -c 25000 -n 5
-f 1.05
The system only has 1GB total.
It says 2048 Mb at
https://labsconsole.wikimedia.org/wiki/Nova_Resource:I-000004bd .
Granted, it might not be a good idea to allocate it all to memcached
(not sure how smart it is about not filling the RAM).
Do you recommend we decrease the amount memcached can use? If so, where
is the setting?
It looks like in this case memcached was installed via the
mediawiki::singlenode class. Since that class is only used in labs,
I've changed it to use 128M of cache.
https://gerrit.wikimedia.org/r/#/c/47680/
If this turns out not to be the cause or if you need more flexibility in
this, let me know!
-Andrew
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