I already have over 10 virtual machines in my home virtual environment. It is the number I find enough to start using some automation tools like Ansible. Installing Ansible on Ubuntu or CentOS systems is straightforward, just use regular apt or yum commands. With Ansible you can use commands or create scripts. First you should start with hosts definition file which by default is located at /etc/ansible/hosts. You can use different hosts file but then you need to point it while running commands. This one is default, so no need to do anything special here. Now going quickly to Proxmox’s
If you happen to have some Bash scripts and would like to abort it in clean way there is way to do it. You need to trap ctrl+c command. In case you have some while loop in your scripts, without it, pressing any abort commands is only half way effective. Now, with ctrl+c trapped, you can cleanly abort your script without things still running.
Once you have installed Elasticsearch and Kibana servers you need to grab some data. First choice could be beats modules, either Metricbeat or Packetbeat. There is also Filebeat. Altough installation instructions are available at https://www.elastic.co/guide/en/beats/metricbeat/7.17/metricbeat-installation-configuration.html I found it useful to describe it separately as this page might just disappear out of a sudden. After installation you need to change the configuration file at: Change Kibana and Elasticsearch output addresses. Then start the agent: In case this is the first time you are installing the agent against this particular Elasticsearch server you need to load visualizations and dashboard definitions: Now you’re
I have this nice MacBook Pro (3,1) from 2007. It has Intel’s Core 2 Duo running 2.2 GHz. Unfortunately the battery is dead or electronics reponsible for charging it. It arrived fully charged and was working for like 2 hours or so. In case the battery runs our of any kind of charge and it is not recognized by the system, then the computer will not start at all. This was like a shock to me, but it’s the Apple hardware. To start MacBook without the battery you need to: press and hold power button for 10 seconds with power
Recently I’ve been tryout Elasticsearch 7 with Kibana and Metricbeat as well as Filebeat. I encountered some issues with indices so I dropped dashboards and visualizations and tried to load them again. I also cleared indices and patterns thru index management page. If you get error message like “could not locate that index-pattern” or something with fields being non-optimized then you should take few actions. Please note that it was my lab Elastic installation so I do not care about deleting indices. First you need to either stop all of your metricbeat modules sending data to the cluster or do
Recently I got Lenovo ThinkPad T61 in working conditions. It has Intel Core 2 Duo T7100 @1.8 GHz, 4 GB of DDR2. At its maximum it can have up to 8 GB of RAM and C2D T9500, altough I’m not quite sure if changing CPU would be straightforward operation – it seems to be socketed, not BGA. I purchased it because of NVIDIA NVS 140M dicrete GPU onboard and unconventionally high screen resolution of 1680×1050. This comes as a benefit but makes few things difficult. Windows 10 works just fine. But if you want to have Ubuntu on it… it
Programowanie CPU i GPU “Mamy rok 2022. Minęła ponad dekada od pojawienia się OpenCL. Omówię standard, przykładowy sprzęt, a także zaprezentuję rzeczywiste przykłady, które można wykorzystywać obecnie zarówno na historycznym jak i najnowszym sprzęcie, co ma pokazać swego rodzaju uniwersalność tego rozwiązania. Przy okazji zobaczymy jak ewoluowała technologia na przestrzeni ostatnich lat i czy teoria odpowiada praktyce. Udostępnione przykłady pokażą, że dzięki stosowaniu standardu OpenCL możemy uzyskać nawet 50-krotne przyspieszenie działania algorytmu (na korzyść GPU) porównując czas pracy CPU i GPU. Zacznijmy jednak od podstaw, tak aby zrozumieć, dlaczego tak się dzieje…“
Podstawy elektroniki i budowa komputera w symulatorze “Jest to pierwsza część serii Simple High Performance Computing o tytule Podstawy elektroniki i budowa komputera w symulatorze. Swoim zakresem obejmuje zagadnienia związane z elektroniką, a konkretnie jej podstawami, począwszy od pierwotnych zasad fizyki przekładających się na komponenty elektroniczne, z których można budować złożone układy, a finalnie najprostszą obliczeniową maszynę cyfrową. Największy nacisk kładę na praktyczną część zagadnienia, aczkolwiek teoria również jest przedstawiana.“
If you try using darktable 3.6 and previously been using older versions then you may be confused. In lighttable, import pane there are two buttons instead of one. Below you can find a little explanation. 1. Add to library By selecting “add to library” you just collect selected pictures instead of physically copying them. Be sure to check settings, storage, xmp, “write sidecar file each image”. For long time I used this setting to write these xmp files, but recently I decided to skip that option. That way the only option to move around picture with its processing settings is