Re: [lxc-users] Container free memory vs host and OOM errors
Greetings, Mathias Gibbens! > It looks like the fix for that regression wasn't included until 4.7.5. > I'm compiling it and will see if I still get the OOM errors. However, my > original question still stands: is the difference in reported available > memory between containers and the host intentional, or a bug? It's likely a misfeature. Container sees the available RAM, count RAM used by its processes, and calculating free memory from them two with no way to know that it's not the only one using the memory. I'd suggest you always limit container memory, even if only marginally (say, 40-60% of available RAM), if you know you'd be running heavy processes inside them from time to time. -- With best regards, Andrey Repin Tuesday, September 27, 2016 18:53:13 Sorry for my terrible english... ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Container free memory vs host and OOM errors
Hi Tomasz, It looks like the fix for that regression wasn't included until 4.7.5. I'm compiling it and will see if I still get the OOM errors. However, my original question still stands: is the difference in reported available memory between containers and the host intentional, or a bug? Thanks, Mathias On Tue, 2016-09-27 at 11:45 +0900, Tomasz Chmielewski wrote: > On 2016-09-27 11:24, Mathias Gibbens wrote: > > Hi, > > > > Recently I've been setting up unprivileged LXC containers on an older > > server that has 6GB of physical RAM. As my containers are running, > > occasionally I am seeing OOM errors in the host's syslog when the > > kernel > > > > This system is running Debian stretch (currently the "testing" > > distribution), 64bit kernel 4.7.4-grsec > > Might be 4.7.x kernel. > > There was some OOM regression in 4.7.x, but I'm not sure if it was fixed > in 4.7.4 or not. > > > Tomasz Chmielewski > https://lxadm.com > signature.asc Description: This is a digitally signed message part ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
Re: [lxc-users] Container free memory vs host and OOM errors
On 2016-09-27 11:24, Mathias Gibbens wrote: Hi, Recently I've been setting up unprivileged LXC containers on an older server that has 6GB of physical RAM. As my containers are running, occasionally I am seeing OOM errors in the host's syslog when the kernel This system is running Debian stretch (currently the "testing" distribution), 64bit kernel 4.7.4-grsec Might be 4.7.x kernel. There was some OOM regression in 4.7.x, but I'm not sure if it was fixed in 4.7.4 or not. Tomasz Chmielewski https://lxadm.com ___ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
