Hi there,
I have a git lab server which dies at least once a day, usually at night (when we have more requests). The whole machine becomes inaccessible and I have to reboot is. Looking at gitlab logs I did not manage to find and useful clue, besides de fact that a git process usually starts consuming a lot of memory before crashing.
I’m running a GitLab Community Edition 10.6.0 8f82e53 on top of a m3.2xlarge on EC2 (it used to be a m3.xlarge, but I increased it to test if it would solve the problem. It did not).
More info:
ubuntu@ip-10-x-x-x:~$ uname -a
Linux ip-10-x-x-x 3.13.0-149-generic #199-Ubuntu SMP Thu May 17 10:12:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
ubuntu@ip-10-x-x-x:~$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu 14.04.2 LTS
Release: 14.04
Codename: trusty
ubuntu@ip-10-x-x-x:~$ git version
git version 1.9.1
ubuntu@ip-10-x-x-x:~$ ulimit -c
0
root@ip-10-x-x-x:~# cat /proc/sys/vm/swappiness
60
# I also tried to desable swap, but it did not work
root@ip-10-x-x-x:~# cat /proc/sys/vm/min_free_kbytes
67584
ubuntu@ip-10-x-x-x:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 493G 203G 270G 43% /
none 4.0K 0 4.0K 0% /sys/fs/cgroup
udev 15G 12K 15G 1% /dev
tmpfs 3.0G 384K 3.0G 1% /run
none 5.0M 0 5.0M 0% /run/lock
none 15G 0 15G 0% /run/shm
none 100M 0 100M 0% /run/user
/dev/xvdb 74G 52M 70G 1% /mnt
/dev/xvdf 739G 166G 540G 24% /mnt2
Before crashing:
A log I’ve seen only one:
File descriptors:
ubuntu@ip-10-x-x-x:~$ ulimit -aH
core file size (blocks, -c) unlimited
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 240041
max locked memory (kbytes, -l) 64
max memory size (kbytes, -m) unlimited
open files (-n) 4096
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 240041
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
# at an arbitrary time at night
ubuntu@ip-10-x-x-x:~$ lsof | wc -l
2108
ubuntu@ip-10-x-x-x:~$ sudo lsof | wc -l
25424
Thanks!