unexpected Sys CPU and Disk write usage spikes
Please look at this graph:
24 hours: http://i.imgur.com/YnkbQFP.png
7 days: http://i.imgur.com/9l5KeIk.png
As you can see, there are strange unexpected Sys CPU and Disk write usage spikes at random time. There is no special cron jobs. I also remember that some times there was "/usr/bin/python3 /usr/lib/ubuntu-release-upgrader..." process in top of the
During this spikes i have to reboot server, this helps. And now, after reboot, i get
Could not load list of meta packages: [Errno 12] Cannot allocate memory twice in places, there must be information about pacakges to upgrade.
I have 1024 mb server and same swap file:
total used free shared buffers cached Mem: 994 837 156 16 8 167 -/+ buffers/cache: 661 332 Swap: 1023 17 1006
How can i find out the problem of this system load spikes? Thanks.