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Displaying posts with tag: Multi-source replication (reset)

Multi-source replication in MySQL 5.7 vs Tungsten Replicator
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MySQL 5.7 comes with a new set of features and multi-source replication is one of them. In few words this means that one slave can replicate from different masters simultaneously.

During the last couple of months I’ve been playing a lot with this trying to analyze its potential in a real case that I’ve been facing while working with a customer.

This was motivated because my customer is already using multi-sourced slaves with Tungsten Replicator and I wanted to do a side-by-side comparison between Tungsten Replicator and Multi-source Replication in MySQL 5.7

Consider the following scenario:

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MySQL 5.7 key features
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The other day I was discussing new features of MySQL 5.7 with a Percona Support customer. After that conversation, I thought it would be a good idea to compile list of important features of MySQL 5.7. The latest MySQL 5.7.6 release candidate (RC) is out and is packed with nice features. Here’s a list of some MySQL 5.7 key features.

Replication Enhancements:

  • One of the top features in MySQL 5.7 is multi-source replication. With multi-source replication you can point multiple master server’s to slave so limitation of slave having only one master is …
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Keep your MySQL data in sync when using Tungsten Replicator
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MySQL replication isn’t perfect and sometimes our data gets out of sync, either by a failure in replication or human intervention. We are all familiar with Percona Toolkit’s pt-table-checksum and pt-table-sync to help us check and fix data inconsistencies – but imagine the following scenario where we mix regular replication with the Tungsten Replicator:

We have regular replication going from master (db1) to 4 slaves (db2, db3, …

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MySQL 5.7 multi-source replication
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Recently Oracle announced several new features for the latest available development version of MySQL that is 5.7.2 at the time of writing this article. Most of them are performance and replication related that show us how incredible the new release will be.

In this post I’m going to try to explain in some easy steps how the new multi-source replication works and how we can configure it for our own tests. It is important to mention that this is a development release, so it is not production ready. Therefore this post is intend to people that want to test the new feature and see how it works with their application, always in a staging …

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