Did mongoDB crash?

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Andrew M

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May 18, 2015, 4:08:58 AM5/18/15

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I didn't stop mongoDB. Did it crash? This looks like something stopped/killed it intentionally.

[root@hercules mongodb]# systemctl status mongod

mongod.service - SYSV: Mongo is a scalable, document-oriented database.

Loaded: loaded (/etc/rc.d/init.d/mongod)

Active: failed (Result: signal) since Sun 2015-05-17 23:50:38 CDT; 3h 14min ago

Main PID: 3388 (code=killed, signal=KILL)

CGroup: /system.slice/mongod.service

May 03 19:36:29 hercules runuser[3254]: pam_unix(runuser:session): session opened for user mongod by (uid=0)

May 03 19:36:31 hercules runuser[3254]: pam_unix(runuser:session): session closed for user mongod

May 03 19:36:31 hercules mongod[3226]: Starting mongod: [ OK ]

May 03 19:36:31 hercules systemd[1]: Started SYSV: Mongo is a scalable, document-oriented database..

May 17 23:50:37 hercules systemd[1]: mongod.service: main process exited, code=killed, status=9/KILL

May 17 23:50:38 hercules mongod[11702]: Stopping mongod: [ OK ]

May 17 23:50:38 hercules systemd[1]: Unit mongod.service entered failed state.

Asya Kamsky

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May 18, 2015, 7:08:02 AM5/18/15

to mongodb-user

When mongod logs stop extremely abruptly it's usually the case it was killed by OOM. Check output of dmesg.

If however the mongod logs show it received a signal and shut itself down then something else external to it sent it a signal and you would need to look at the rest of the system logs.

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