Linux

Prometheus Node Exporter /lib/init/init-d-script: /usr/bin/daemon: not found

Jarek 2019-03-222019-03-22 Telco and IT No Comments

After Ubuntu upgrade 18.04 -18.10, Prometheus Node Exporter started to complain:

root@grafana:~# /etc/init.d/prometheus-node-exporter 
startStarting Prometheus exporter for machine metrics prometheus-node-exporter                                                         
/etc/init.d/prometheus-node-exporter: 45: /lib/init/init-d-script: /usr/bin/daemon: not found

Fix for this is quite easy – just install missing dependency:

root@grafana:~# apt

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Oracle Coherence – description of federation member states

Jarek 2018-10-102024-10-06 Telco and IT 2 Comments

States of Oracle Coherence federation are not very well described in the documentation. So I thought it would be good to ask at the source. Thanks to Patrick F for all these explanations!

Stopped states – Federation is not federating

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Proxmox: enp0s31f6: Detected Hardware Unit Hang

Jarek 2018-08-06 Telco and IT 2 Comments

Since a few weeks, my Proxmox lab has started having issues with on-board network. The adapter enters in “hang” state, the logs are full of recurring errors like below:

[89276.274556] e1000e 0000:00:1f.6 enp0s31f6: Reset adapter unexpectedly
[89276.306147] vmbr0: port 1(enp0s31f6)

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New home virtualisation lab

Jarek 2018-06-162018-06-17 Gadgets & hobbies No Comments

Intro

It’s been a while since I’ve built my current home lab. It’s based on Lenovo M910t. In general, I’m quite happy but it’s lacking expansion flexibility.

So I’m looking for a replacement. Below my notes from research and calculations …

My current Home Virtualisation Lab “Wieloryb”

Jarek 2018-06-142018-06-16 Gadgets & hobbies No Comments

Wieloryb as a home lab

My current home server which I use many for virtualisation, serving also some net services is reaching memory and disk-space limits. I named this server Wieloryb which in Polish means The Whale.

Hardware

So far …