The Ultimate Guide to High Availability with MariaDB

How to install MariaDB Galera without internet connection( without YUM)?

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Answer

You need 3 cluster nodes minimum to determine quorum. HA proxy can be on one or more of these nodes. Note a 1 HA node proxy becomes a single point of failure.

Some possible architectures:

http://galeracluster.com/documentation-webpages/deploymentvariants.html

Exact deployment will depend on requirements. Get professional help if you are out of your depth. Various blogs on galera and HA have been written and transcribing those to a comprehensive step by step guide is beyond the level I'm willing to write up.

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