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I'm running Debian 8 on Linode 32 GB and once every few days the system crashes. This server is being used in productions and I need to find a solution ASAP

The only server running on Debian is Postgresql 9.5.3

Is there anyway I can find out why the system is crashing?

Here are the graphs of Linode that show the crash.

enter image description here

Journal file http://pastebin.com/5FJ6eCsy

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  • Read the journal entry for a crashed session... Commented Jun 11, 2016 at 20:57
  • I hope the journal goes far back enough. I think the crash happened about 14 hours a go. I have pasted the journal Commented Jun 11, 2016 at 21:14
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    That log doesn't start before the system was restarted and is thus worthless. Commented Jun 11, 2016 at 21:54
  • As noted, the logs are the place to look, but, note, your crash happened at exactly midday. Is it possible that that is relevant? Commented Jun 14, 2016 at 11:42
  • Do more graphs. There you may see if for example memory or nw traffic does not have a spike just before the crash. What does it mean "crash"? Hangs? Kernel panic? Reboots itself automatically? Maybe configure remote syslog, so you will have even the latest messages before the crash (local IO is usually hanged long before the system itself). Commented Jun 14, 2016 at 14:37

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