I have Debian Server, which apparently freezes after some time. When this happens the only way is to hard shutdown it by long pressing the power button. I don't know where to look for the reason of this to fix it. Unfortunately I have to fix this because I can't install the Debian completely new (the server is running some important stuff).
Some initial information:
- x86_64 architecture
- SMP Debian 4.9.130-2 (2018-10-27)
- kernel 4.9.0-8-amd64
The server is currently running in a Hadoop cluster and that's it. I looked into the
/var/log/syslog and there are only entries from the Hadoop starting, and after that it only renews via DHCP in intervals of 300 seconds.
What can I do to fix this?