Ubuntu Server, crashing

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Joined: Thu Dec 29, 2016 9:59 pm

Ubuntu Server, crashing

Post by ECE » Thu Dec 29, 2016 10:07 pm

Latest Ubuntu Server. Few years old good laptop, Thinkpad, i7, 8 GB, 512 SSD (2 years old, was working with Windows brilliantly). I have only Zomeminder installed. And mysql and webserver and what else Zoneminder wanted to install.

But this stops responding randomly. Sometimes runs over a week and sometimes barely 24 hours. Can't connect over network nor locally, screen is black. I have only two network cameras running with modect.

I would do a cron job for rebooting but the disc is crypted.

Any hints?

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Re: Ubuntu Server, crashing

Post by bbunge » Fri Dec 30, 2016 3:20 am

What Linux version? What resolution are you using on your cameras? When it is running how much free memory/tmpfs do you have? What file system are you running on the SSD? How much free drive space do you have (the 95% purge filter may need to be set to 90%)?

I am running 17 cameras on 8 GIG RAM but have the resolution and frame rate turned down.

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Joined: Thu Dec 29, 2016 9:59 pm

Re: Ubuntu Server, crashing

Post by ECE » Fri Dec 30, 2016 9:47 am

Code: Select all

No LSB modules are available.
Distributor ID: Ubuntu
Description:    Ubuntu 16.04.1 LTS
Release:        16.04
Codename:       xenial
Here is the disk info:

Code: Select all

Tiedostojärjestelmä        Tyyppi   1K-lohkot      Käyt  Vapaana Käy% Liitospiste
udev                       devtmpfs   4009464         0  4009464   0% /dev
tmpfs                      tmpfs       805900     85196   720704  11% /run
/dev/mapper/piima--vg-root ext4     231552032 126181492 93585324  58% /
tmpfs                      tmpfs      4029484    842184  3187300  21% /dev/shm
tmpfs                      tmpfs         5120         0     5120   0% /run/lock
tmpfs                      tmpfs      4029484         0  4029484   0% /sys/fs/cgroup
/dev/sda1                  ext2        482922    399316    58672  88% /boot
cgmfs                      tmpfs          100         0      100   0% /run/cgmanager/fs
/home/piima/.Private       ecryptfs 231552032 126181492 93585324  58% /home/piima
tmpfs                      tmpfs       805900         0   805900   0% /run/user/1000
And both cameras are 32 bit colour, 1920x1080. Haven't checked yet how these cameras works with lower resolutions. I suspect that the sensor of these cameras are actually lower resolutions and this produced resolution might be interpolated.
https://www.aliexpress.com/item/2-0MP-I ... 0.0.pZSU95

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