maximum memory of twemcache

[typd]

Hi,
I found the service may extend maximum memory with "set" then "get",
twemcache -d -m 20
test script
import memcache
mc = memcache.Client(['localhost:11211'])
i = 0
while True:
i+=1
key = value = str(i)
mc.set(key, value)
mc.get(key)

The memory size keeps increasing and extends the maximum. Is it an issue with some internal data structure?

thanks

[thanhcnn2000]

I get the same problem that I set -m to 512 but the real resident memory size of the process is (viewed by ps command) increasing time by time after it passes limit 512

[sceoy]

it is a bug brought by 2.5.2. There is a memory leak when they switch the cas_suffix strategy (bcoz initially it will only alloc memory when return_cas so as free cache, now it will alloc memory any way but the free strategy keep the same). You could use 2.5.1 for a tricky fix. Or change the mc_connection.c and mc_core.c to make it release the suffix cache in all cases.

[thanhcnn2000]

Thanks you for your supporting us. We are looking forward to next release.

[thinkingfish]

Thanks for pointing out the problem, this bug has been fixed in the 2.5.3 release. Please let us know if you are running into similar problems.

[thinkingfish]

I want to apologize for claiming this being fixed. Apparently it wasn't fixed for all cases and the claim was prematured. Now I've root-caused the bug and tested all cases, a proper fix will come very soon with another release.