02 Ceph cluster planning and deployment of mimic

Reference connection:< https://docs.ceph.com/docs/master/ 2.1 cluster planning At least three Centos7 system virtual machines are used to deploy Ceph cluster. Hardware configuration: 2C4G. In addition, each machine should be equipped with at least three hard disks (5g for each disk) HOST IP Service Mark cephmanager01 public network:1 ...

Posted by BenInBlack on Tue, 30 Jun 2020 00:50:02 -0700

Qt Open Source Works 6-Universal Video Control

1. Preface In the previous video monitoring system, according to the needs of different users, many kinds of video monitoring cores have been made, including ffmpeg cores, vlc cores, mpv cores, and Haikang sdk cores. In order to make a common function, different cores are very convenient to switch, such as pro changing the variable name of DEFI ...

Posted by jimdavidson on Sun, 10 May 2020 18:09:31 -0700

Detailed explanation of PG state of distributed storage Ceph

1. PG introduction This time, I'd like to share the detailed explanation of various states of PG in Ceph. PG is one of the most complex and difficult concepts. The complexity of PG is as follows: At the architecture level, PG is in the middle of the RADOS layer. a. Up is responsible for receiving and processing requests from clients. b. The ...

Posted by blackthunder on Thu, 07 May 2020 05:15:12 -0700

Qt open source works 2-video streaming vlc core

1, Foreword The last work is made by the ffmpeg kernel. Because ffmpeg is too powerful, many beginners will see the state of confusion. There are also many users who only need a simple video stream to play, which does not need to involve the decoding and transcoding. So vlc came on the stage. It directly encapsulates ffmpeg in depth and provid ...

Posted by opencombatclan on Mon, 27 Apr 2020 03:00:32 -0700

Perfect integration of Ceph and kubernetes

1. Ceph combined with volumes Objective: to achieve Ceph RBD and kubernetes volumes integration. 1.1 preparations 1. Creating pool s and users [root@node-1 ~]# ceph osd pool create kubernetes 8 8 2. Create an authenticated user [root@node-1 ~]# ceph auth get-or-create client.kubernetes mon 'profile rbd' osd 'profile rbd pool=kubernetes' [clie ...

Posted by Huntress on Tue, 21 Apr 2020 07:43:27 -0700

openstack+ceph Big Trial!Follow along!

Article Directory Preface First: The theoretical basis of CEPH 1.1: Overview 1.2: Related concepts 1.3: No central architecture at all 2: Deploy CEPH cluster 2.1: Deploying a CEPH environment 2.2: CEPH cluster building 2.3: CEPH Cluster Management Page Installation 3: docking between CEPH and ope ...

Posted by KevMull on Sun, 08 Mar 2020 18:23:40 -0700

OCR recognition based on Tesseract

Catalog Demand background Tesseract introduction and environment construction Font training Tesseract for iOS summary Demand background Due to the limitation of the client core, most of the ID card identification in the market will be put in the server verification. The client is generally only ...

Posted by tomdelonge on Wed, 05 Feb 2020 04:01:10 -0800

ceph auth command collection

1. Post it first to help with the information auth add <entity> {<caps> [<caps>...]} add auth info for <entity> from input file, or random key if no input is given, and/or any caps specified in the command auth caps <entity> <c ...

Posted by israfel on Sun, 26 Jan 2020 18:23:45 -0800

Rancher, K8S Persistent Storage Ceph RBD Setup and Configuration

1. Configure host, install ntp (not required)2. Configure Secret-Free ssh3. Configure ceph, yum source vim /etc/yum.repo.d/ceph.cepo [ceph] name=ceph baseurl=http://mirrors.cloud.tencent.com/ceph/rpm-luminous/el7/x86_64/ gpgcheck=0 priority=1 [ceph-noarch] name=cephnoarch baseurl=http://mirrors.cloud.tencent.com/ceph/rpm-luminous/el7/noarch/ ...

Posted by sissy on Fri, 27 Dec 2019 17:10:58 -0800

Ceph block equipment introduction and installation configuration

1: rbd introduction A block is a sequence of bytes (for example, a 512 byte block of data). Block based storage interface is the most commonly used method to store data using rotating media (such as hard disk, CD, floppy disk or even traditional 9-track tape). The ubiquitous block device interface makes the virtual block device an ideal candi ...

Posted by lynosull on Thu, 19 Dec 2019 03:21:43 -0800