Landscape Bundles

mem=2048 for landscape-server may lead to OOM killer with some periodic tasks

Bug #1840209 reported by Nobuto Murata on 2019-08-15

This bug affects 1 person

Affects		Status	Importance	Assigned to	Milestone
	Landscape Bundles	Fix Committed	Undecided	Nobuto Murata

Bug Description

It's reproducible with local provider too. It's better to bump the memory constraint to 4096.

How to reproduce:
$ juju deploy landscape-scalable

$ juju run --unit landscape-server/0 -- \
sudo -u landscape -H /opt/canonical/landscape/scripts/update_security_db.sh

    /opt/canonical/landscape/scripts/update_security_db.sh: line 52: 5574 Done bzcat ${OUTPUT_FILE}
          5575 Killed | ./process-usns /dev/stdin 2>&1
          5576 | pipe_to_syslog $LOGGER_NAME
    Error running /opt/canonical/landscape/scripts/update_security_db.sh: 0
    Check out the syslog output for script update_security_db.sh.

    Aug 14 08:35:15 darkbox kernel: [12340.389945] Memory cgroup out of memory: Kill process 27221 (python) score 174 or sacrifice child
    Aug 14 08:35:15 darkbox kernel: [12340.389960] Killed process 27221 (python) total-vm:719436kB, anon-rss:348344kB, file-rss:0kB, shmem-rss:0kB
    Aug 14 08:35:15 darkbox kernel: [12340.432737] oom_reaper: reaped process 27221 (python), now anon-rss:0kB, file-rss:0kB, shmem-rss:0kB

See original description