Are there any thoughts as to why I still see quite large memory usage, and only on some [ seemingly random ] hosts ? Cheers, Just On 11 October 2016 at 19:05, Madhu <informmadhu@gmail.com> wrote:
Hi everyone,
Now i tested with 16 path and 32 path, I don't see the crash. Below are the memory usage for each.
*16 path*
bird> show memory BIRD memory usage Routing tables: 5109 kB Route attributes: 13 kB ROA tables: 192 B Protocols: 163 kB Total: 5384 kB
*32 path*
bird> show memory BIRD memory usage Routing tables: 10 MB Route attributes: 16 kB ROA tables: 192 B Protocols: 239 kB Total: 10 MB
Now I increased to* 62 path*, I see that* CPU is going high to 100%*, and the memory usage is 0.1%. birdc socket got struck. I was not able to access the socket.
bird> show memory BIRD memory usage Routing tables: 5127 kB Route attributes: 20 kB ROA tables: 192 B Protocols: 382 kB Total: 5641 kB bird> show memory >>. After this it got struck
# top top - 17:47:50 up 1:02, 2 users, load average: 1.35, 1.42, 1.10 Tasks: 163 total, 2 running, 161 sleeping, 0 stopped, 0 zombie %Cpu(s): 29.7 us, 0.5 sy, 0.2 ni, 69.4 id, 0.0 wa, 0.0 hi, 0.2 si, 0.0 st KiB Mem: 8127384 total, 1279304 used, 6848080 free, 36040 buffers KiB Swap: 812736 total, 0 used, 812736 free. 456220 cached Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 8768 bird 20 0 21728 8808 2352 R* 100.0* 0.1 8:12.97 bird
Attached the bird config file.
Madhu
On Tue, Oct 11, 2016 at 5:56 AM, Justin Cattle <j@ocado.com> wrote:
It looks like oom-kill from the call trace I think.
Cheers, Just
On 11 October 2016 at 13:07, Ondrej Zajicek <santiago@crfreenet.org> wrote:
On Mon, Oct 10, 2016 at 06:21:44PM -0700, Madhu wrote:
I have 3000 routes with 64 path ecmp. It is crashing . I don't see the coredump . Is there anyway to fix using trace ?
Hi
I would like to confirm, it is BIRD that was killed by out of memory killer and could be just restarted? Or Linux kernel crashed? (You wrote 'the kernel crashed with out of memory issue' in one prior mail.)
In the first case, how much memory BIRD takes after start and before it crashes? How long it takes to crash to crash due to OOM?
On Oct 10, 2016, at 6:08 PM, Jonathan Stewart < jonathan.stewart@gmail.com> wrote: It must be something specific to your environment.
It is likely related to 64 path BGP multipath exported to kernel.
-- Elen sila lumenn' omentielvo
Ondrej 'Santiago' Zajicek (email: santiago@crfreenet.org) OpenPGP encrypted e-mails preferred (KeyID 0x11DEADC3, wwwkeys.pgp.net) "To err is human -- to blame it on a computer is even more so."
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