maria-discuss team mailing list archive

[Reindl Harald <h.reindl@xxxxxxxxxxxxx>]

Am 03.03.2015 um 22:26 schrieb Gabriel Sosa:
> using systemtap I got
>
> [Tue Mar  3 18:48:46 2015] SIGKILL was sent to ps (pid:9763) by
> processes uid:0
> [Tue Mar  3 18:49:46 2015] SIGKILL was sent to ps (pid:9824) by
> processes uid:0
> *[Tue Mar  3 18:50:44 2015] SIGKILL was sent to mysqld (pid:7597) by
> mysqld uid:498*
> [Tue Mar  3 18:50:46 2015] SIGKILL was sent to ps (pid:9890) by
> processes uid:0
> [Tue Mar  3 18:51:46 2015] SIGKILL was sent to ps (pid:9997) by
> processes uid:0
> [Tue Mar  3 18:52:35 2015] SIGKILL was sent to cdm (pid:10045) by cdm uid:0
>
>
> I saw this several times but I wasn't able to find (in this case) which
> process has the PID 498. @jocelyn, you are right...to tweaks at all for
> tokudb (my bad here), although I wasn't expecting such /naive/ approach,
> I mean, I could have not enable the tokudb plugin and all other tables
> using the other engines would work just fine (maybe just slow though)
>
> free -m returns about 47M free...which isn't much...

you need to learn read the output

it don't matter how much is free, what matters is if the allocated 
memory is used, shared, buffers or even cache - cache don't matter 
because it is re-used if a application requests memory

until that happens a sane OS is using *100 %* of the available memory 
for caching - that below don't mean there are only 577 MB free, i can 
with no issue start a application requesting 4 GB ram because the 11086 
MB cache can be re-used at every moment in time

[root@srv-rhsoft:~]$ free -m
             total       used       free     shared    buffers     cached
Mem:         15923      15345        577        239       1020      11086
-/+ buffers/cache:       3238      12684
Swap:         3025          6       3018

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