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How to create partitions larger than 2TB in Linux

It’s well known that is impossible to create partitions larger than 2TB in Linux using the default utility fdisk that comes with most of Linux distros, at least for now. In this short tutorial we’ll learn how to create larger than 2TB partitions using parted utility instead of fdisk on CentOS Linux. Assuming that we have to add three new disks to a new fictive server called mydbhost that will be used for a MySQL service for example, being master, slave, standalone it doesn’t matter, all that we care is the partitioning bit. Installing parted utility We can start our […]

How to install Elasticsearch 2.4 and OpenResty on CentOS 7

In this tutorial we’ll explain how to install and configure a three node Elasticsearch 2.4 cluster on CentOS 7. Also, we’ll learn how to install OpenResty that will provide a layer of security for our Elasticsearch cluster, Elasticsearch-HQ that will give us some nice metrics, Kopf plugin and of course Kibana. Why ES 2.4? Well it’s complicated but lets say we’ve choose 2.4 just because this particular version isn’t supported anymore by Elastic and some of you may be “forced” to use this version for a while until you redesign your software to comply with a newer version in terms […]