Skip to main content


Showing posts from March, 2020

Install Mesos | Install Mesosphere | Install Marathon | Install zookeeper | Install Chronos

Install Mesos, Mesosphere, Marathon, Zookeeper, Chronos on Red Hat Linux: Identify repository rpm for Mesos, Mesosphere, Marathon, Zookeepter, for which is mesosphere-el-repo-7-3.noarch.rpm . Install following software on each master.   Update Repository: # rpm -Uvh Install mesos, and marathon from mesosphere repository:   # yum -y install --enablerepo=mesosphere mesos marathon Check installation and version of mesos: # yum list installed | grep mesos mesos.x86_64   1.9.0-2.0.1.el7 @mesosphere mesosphere-el-repo.noarch  7-3  installed # yum list installed | grep marathon marathon.noarch  1.9.109-1.el7 @mesosphere-noarch Install mesosphere-zookeeper: # yum install mesosphere-zookeeper Check installation and version of Zookkeeper: # yum list installed | grep zoo* mesosphere-zookeeper.x86_64  3.4.6-0.1.20141204175332.centos7 Install Chronos: #yum install chronos Check installation and

Kubernetes Masters (Control Plane) and Kubernets Node

Kubernetes Master (Control Plane): Kubernetes master is a collection of small specialized services, API server, the cluster store, the controller manager, and the scheduler which makes the control plane of the cluster, for production environment multi-master is must have. EKS-Elastic  Kubernetes Service from Amazon, GCP- Google Cloud Platform from Google,  Azure from Microsoft are deploying highly available masters. Most of the time application work load runs on nodes and not on Masters. The API Server: API server is the brain of the cluster, the front end to into the Kubernetes Masters, Expose RESTFUL API which consume JSON, user POST manifest file to the API  server which get validated and then deployed to the cluster. API Server is central management entity and it is the only one entity directly communicate with etcd distributed storage component. Ref.: The Cluster Store: Cluster store is the memory of

Kubernetes | K8s | Kubernetes Components

Kubernetes: Kubernetes word derived from Greek word meaning Helmsman – person who steers a ship. Open-sourced handed over to the Cloud Native Computing Foundation (CNCF), written in Go (Golang) Kubernetes is an orchestration, orchestration of containerized apps., often written as k8s It is leading container orchestrator lets us manage containerized apps and or micro service apps. Micro service apps made of lots of small and independents parts. You say hey Kubernetes, here is my app, consist of these parts, just run it for me, and Kubernetes run it.   You package the app as containers, give them declarative manifest, and let Kubernetes runt it. It is platform agnostic, runs on bare metal, VMs, cloud instances (private and public), OpenStack, anything with Linux. Does scaling, self-healing, load balancing, rolling updates and more. Lives on Github at kubernetes/kubernetes, Twitter - @kubernetesio How Kubernetes relate to Docker: Docker is a low level tec

Linux daily commands

Linux Daily Command: Linux A to Z commands - Archive directory using tar: tar -cvf <project_name.tar> /mysql/<project_anme> /mysql/mysqlbakcup/<project_name.tar> Extract directory using tar: tar -xvf <File_Name.tar> <Target_Location> tar - Copy files to remote server: rsync -avz  *.sql <id>@<remote_server>:</remote_server_path/backup/> --progress Copy directory dir_2 to remote server: rsync -avz /dir_1/dir_2 <id>@<remote_server>:</remote_server_path/backup/> --progress Copy remote file to local server: rsync -avzh <id>@<remote_server>:</remote_server_path/backup/> </local_server_path/local_dir> Copy remote file to local /tmp directory server over SSH: rsync -avzhe ssh <id>@<remote_server>:</remote_server_path/backup/

Install MySQL 8.0.19 Community edition on Linux

Install MySQL 8.0.19 Community edition: Remove Maria DB packages: # yum remove mariadb-libs.x86_64* Install MySQL 8.0.19 rpm packages: # yum install mysql-community-common-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-libs-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-libs-compat-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-client-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-embedded-compat-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-devel-8.0.19-1.el7.x86_64.rpm # yum install mysql-community-server-8.0.19-1.el7.x86_64.rpm # yum install mysql-shell-8.0.19-1.el7.x86_64.rpm At this point mysql daemon is up and running at default location /var/lib/mysql at default port 3306. If you would like to customize location and port and other configuration parameters, make sure to remove directory /var/lib/mysql and kill the existing mysqld process running. Disable Firewall: # systemctl stop firewalld # systemctl disable firewall

MySQL 8.0.19 Enterprise Edition Install on Linux

MySQL 8.0.19 Enterprise Edition install: While installing MySQL 8.0.19 Enterprise Edition got following error Error: Package: mysql-commercial-libs-compat-8.0.19-1.1.el7.x86_64 (/mysql-commercial-libs-compat-8.0.19-1.1.el7.x86_64) Requires: mysql-commercial-libs(x86-64) >= 8.0.11 Solution: Get mysql-commercial-common-8.0.11-1.1.el7.x86_64.rpm, and mysql-commercial-libs-8.0.11-1.1.el7.x86_64.rpm from Oracle and install, it will fix the issue Start installing using yum as follows or rpm # yum install mysql-commercial-common-8.0.11-1.1.el7.x86_64.rpm # yum install mysql-commercial-libs-8.0.11-1.1.el7.x86_64.rpm # yum install mysql-commercial-libs-compat-8.0.19-1.1.el7.x86_64.rpm # yum install  mysql-commercial-libs-8.0.19-1.1.el7.x86_64.rpm # yum install mysql-commercial-embedded-compat-8.0.19-1.1.el7.x86_64.rpm # yum install mysql-commercial-client-8.0.19-1.1.el7.x86_64.rpm # yum install mysql-commercial-common-8.0.19-1.1.el7.x86_64.rpm # yum install mysql-commercial-server-8.0.19-1