Browsing all articles tagged with high availability Archives - Patrice Guay, Eng.

Monitoring probes

Posted Posted by Patrice Guay in Web hosting     Comments 1 comment
Sep
10

Monitoring probes are great tools to help maintain your web presence and avoid downtime for your website. External probes can check at regular intervals the availability and responsiveness of your services while internal ones can monitor resource utilization on your servers. These tools can also provide you with valuable information to help you track down performance issues and diagnose problems on your servers. On this article, we present different monitoring probes:

  • BigBrother
  • munin
  • Nagios
  • OpenNMS
  • pingdom

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Book review: High Availability MySQL Cookbook

Posted Posted by Patrice Guay in Web hosting     Comments No comments
Jul
5

Under the CentOS distribution, a MySQL database service can be transformed into an highly available service using different approaches. High Availability MySQL Cookbook presents them:

  • MySQL Cluster
  • MySQL replication
  • Shared storage
  • Block-level replication

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Database server clustering

Posted Posted by Patrice Guay in Web hosting     Comments 7 comments
Mar
23

database server clusterA cluster is a group of two or more independent servers operating as a single system. A database server cluster could help you achieve high availability or improve I/O throughput for your database service. In this article, we discuss the different approaches to database clustering for MySQL and MSSQL.

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Web server clustering

Posted Posted by Patrice Guay in Web hosting     Comments 1 comment
Mar
23

A cluster is a group of two or more independent servers operating as a single system. Using a cluster rather than a single server as powerful as the sum of the independent servers offers benefits:

  • Increase the availability
  • Facilitate the rise in system load
  • Allow for load distribution
  • Allow the use of low-cost servers

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