Tags: cluster

How to Build a Ceph Distributed Storage Cluster on CentOS 7

Ceph is a widely used open source storage platform. It provides high performance, reliability, and scalability. The Ceph free distributed storage system provides an interface for object, block, and file-level storage. Ceph is build to provide a distributed storage system without a single point of...
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Allen Samuels
Allen Samuels, Engineering Fellow at Western Digital, talking about Ceph and Flash at LinuxCon Europe.

Improving Storage Performance with Ceph and Flash

Ceph is a storage system designed to be used at scale, with clusters of Ceph in deployment in excess of 40 petabytes today. At LinuxCon Europe, Allen Samuels, Engineering Fellow at Western Digital, says that Ceph has been proven to scale out reasonably well. Samuels says, “the most important thing...
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Kubernetes High Availability Setup Using Ansible

I have created an Ansible module to create a highly available (HA) Kubernetes cluster with latest release 1.4.x on CentOS 7.X. You can use this module to install Kubernetes HA cluster with just one click, and your cluster will be ready in few minutes.  There are 8 roles defined in this Ansible...
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Build a Hadoop Cluster in AWS in Minutes

Check out this process that will let you get a Hadoop cluster up and running on AWS in two easy steps. I use Apache Hadoop to process huge data loads. Setting up Hadoop in a cloud provider, such as AWS, involves spinning up a bunch of EC2 instances, configuring nodes to talk to each other,...
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SUSE Advances its Open-Source Storage System

Besides announcing its next version of Ceph-powered SUSE Enterprise Storage, SUSE has bought openATTIC, the open-source Ceph and storage management framework. SES 4, a software-defined storage system, is powered by Ceph. This is a distributed object store and file system. It, in turn, relies on a...
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Linux Dominates November TOP500 Supercomputer List

The latest semi-annual list of the world's top 500 supercomputers was released on November 14, showing little change at the top of the list. The China-based Sunway TaihuLight supercomputer, which first claimed the title of the world's fastest system in June 2016, still reigns supreme. Sunway...
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How to Deploy a Fault Tolerant Cluster with Continuous or High Availability

Some companies cannot allow having their services down. In case of a server outage a cellular operator might experience billing system downtime causing lost connection for all its clients. Admittance of the potential impact of such situations leads to the idea to always have a plan B. In this...
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How to Solve 5 Elasticsearch Performance and Scaling Problems

This post is the final part of a 4-part series on monitoring Elasticsearch performance. Part 1 provides an overview of Elasticsearch and its key performance metrics, Part 2 explains how to collect these metrics, and Part 3 describes how to monitor Elasticsearch with Datadog. Like a car,...
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Running Stateful Applications in Kubernetes: Storage Provisioning and Allocation

In the last part of this series, we explored how the concept of volumes brings persistence to containers. This article builds upon the understanding of volumes to introduce persistent volumes and claims, which form the robust storage infrastructure of Kubernetes. To appreciate how Kubernetes ...
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Docker Swarm
At LinuxCon+ContainerCon North America this month, Jérôme Petazzoni of Docker will present an all-day tutorial “Orchestrating Containers in Production at Scale with Docker Swarm.” This article provides a preview of his talk.

Scaling Out with SwarmKit

At LinuxCon+ContainerCon North America this month, Jérôme Petazzoni of Docker will present a free, all-day tutorial “Orchestrating Containers in Production at Scale with Docker Swarm.” As a preview to that talk, this article takes a look specifically at SwarmKit, an open source toolkit used to...
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