e62d417324
OOMScoreAdjust can be set between -1000 and +1000. This value is inherited and systemd has no easy way to control this for children (box code also runs as non-root, so it cannot easily set it for the children using /proc/<pid>/oom_score_adj. When set to -1000 and the process reaches the MemoryMax, it seems the kernel does not kill any process in the cgroup and it spins up in high memory. In fact, 'systemctl status <service>' stops displaying child process (but ps does), not sure what is happenning. Keeping it -999 means that if a child process consumed a lot of memory, the kernel will kill something in the group. If the main box itself is killed, systemd will kill it at all because of KillMode=control-group. Keeping it -999 also saves box service group being killed relative to other docker processes (apps and addons). Fixes #605
30 lines
1.2 KiB
Desktop File
30 lines
1.2 KiB
Desktop File
[Unit]
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Description=Cloudron Admin
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OnFailure=crashnotifier@%n.service
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StopWhenUnneeded=true
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; journald crashes result in a EPIPE in node. Cannot ignore it as it results in loss of logs.
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BindsTo=systemd-journald.service
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After=mysql.service nginx.service
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; As cloudron-resize-fs is a one-shot, the Wants= automatically ensures that the service *finishes*
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Wants=cloudron-resize-fs.service
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[Service]
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Type=idle
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WorkingDirectory=/home/yellowtent/box
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Restart=always
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; Systemd does not append logs when logging to files, we spawn a shell first and exec to replace it after setting up the pipes
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ExecStart=/bin/sh -c 'echo "Logging to /home/yellowtent/platformdata/logs/box.log"; exec /usr/bin/node --max_old_space_size=150 /home/yellowtent/box/box.js >> /home/yellowtent/platformdata/logs/box.log 2>&1'
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Environment="HOME=/home/yellowtent" "USER=yellowtent" "DEBUG=box*,connect-lastmile" "BOX_ENV=cloudron" "NODE_ENV=production"
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; kill apptask processes as well
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KillMode=control-group
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; Do not kill this process on OOM. Children inherit this score. Do not set it to -1000 so that MemoryMax can keep working
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OOMScoreAdjust=-999
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User=yellowtent
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Group=yellowtent
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; OOM killer is invoked in this unit beyond this
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MemoryMax=400M
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TimeoutStopSec=5s
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StartLimitInterval=1
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StartLimitBurst=60
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