Memory requirements for interworx 3.0

[ddyer]

Ever since Interworx 3.0 was installed, my vps has suffered from
random misbehavior, ultimately caused by the RAM limit 192m
associated with bronze level VPS service. The general symptom
is that random processes fail to allocate memory and die.

So, Heads-up to other customers; if your server is getting flaky
this could be your problem too.

[Karl]

That is true with any VPS, if you try to use more RAM than is allowed processes using that memory will die. We highly recommend looking at the following article: https://support.steadfast.net/index.php?_m=knowledgebase&_a=viewarticle&kbarticleid=46&nav=0,2

Otherwise, Plesk is the control panel which uses the lowest amount of RAM on our VPS systems, also shutting down ClamAV or SpamAssassin helps.

[ddyer]

All the above is good advice, but it turned out that the real killer was
a single runaway process, which used up memory as fast as possible
and then was killed when no more was available. The culprit wasn't
doing anything super critical, but all the other processes in the system
were likely to be collateral damage.

I would have helped a lot if, when the system kills a process under these
circumstances, there was a specific log of the particulars.

[Henrik]

You can also experiment with the apache config used for the actual domains. You can get down your memory usage well by this method.