Rucni vycisteni RAM

[psenik]

Zdravim vsechny Geeky.
Potrebuji poradit ohledne spravy sveho serveru. Jednoduse mam spusteny server s minecraftem + webovky pro tyto gamesu, zaroven jej pouzivam jako Sambsa server a jeden cely disk si sdilim. Problem je ze jakmile se vycerpa RAM, coz je obvykle po tydnu, SWAPovaci prostor rzchlostne nestaci, pouzite disky totiz nejsou zadna nova technika, naopak nekolik let stare.
Je moznost nechat cronem automaticky spoustet nejaky prikaz, ktery mi vycisti ram? Nasel jsem pouze ubuntu tweak, ale ten chce gui, coz mi sezere jeste vic vykonu.
Mockrat dekuji za rady.

[František Zatloukal]

Stačí takto?
https://help.ubuntu.com/community/CronHowto

[ntz_reloaded]

to se dela jinak .. ne-existuje nic takoveho.

- nastavis si spravne system, tzn nastavis nejake rozumne volby do sysctl.cong vc. vm.swapiness + ulimity pro dane uzivatele, co spousti sluzby .. pomoci ulimitu muzes nastavit max pamet apod ..
- musis zjistit, proc a na cem dana aplikace zere timto zpusobem pamet a jedina rozumna moznost je v pravidelnejch intervalech tu aplikaci restartovat, pokud to neni resitelne jinak .. sam pises, ze to dela po tydnu.

[Roman Vacho]

není nějaká možnost jak by oomkiler zlobidlo zabil a poté jej zase nastartoval?

[menganito]

- musis zjistit, proc a na cem dana aplikace zere timto zpusobem pamet

To je jediná správna cesta. Keď nejaká aplikácia stále priberá viac pamäti, má problém. Slušné aplikácie sa takto nesprávajú. Do crontabu nedávaj "čistenie pamäti" ale nejaký reštart neposlušnáho procesu.

[Dano V]

Možno to k niečomu bude (na nete je plno Minecraft Server uses LOTS of RAM; Increasing Minecraft's Ram Usage a t.d.

Memory

The more… the better… the faster it is… even better it will be.  The key things to note here is to run a 64bit version of JAVA.  A 32bit version will have memory limits (around 2gb) and as such, will be useless on a popular server.  When working out how much memory you need – I would be factoring in 200mb of memory per user and then an additional 2gb of memory to cover the operating system etc.  So, if you were to have 40 users – you would need 10gb of memory (200 x 40 + 2000).  This will help to keep your server running smooth.  You will want to adjust the launch system of your Minecraft server to put a limit on memory usage.

http://www.minecraftwiki.net/wiki/Tutorials/Setting_up_a_server

Tip: If you want to spare more memory, you may set the -Xms parameter even lower, say:

java -Xms32M -Xmx512M -jar minecraft_server.jar nogui

The parameter controls how much memory is reserved on startup Your server will start with 32MB RAM and whenever it needs more memory it will allocate some until it reaches the maximum of 512 MB. However, this will result in a little slowdown whenever the allocation is done.