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Displaying posts with tag: synchronous replication (reset)

Slides from PLMCE 2014 breakout session
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As many of you already know, PLMCE is an annual MySQL
community conference and Expo organized by Percona in the month of April
(usually). It is a great conference, not only to meet new and eminent people in
MySQL and related database fields, but also to attend interesting talks, and
also to give some.

This year I spoke about synchronous replication at a higher level. The talk was
titled “ACIDic Clusters: Review of current relational databases with synchronous replication”. Having previously given talks with boring titles (but





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Is Synchronous Replication right for your app?
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I talk with lot of people who are really interested in Percona XtraDB Cluster (PXC) and mostly they are interested in PXC as a high-availability solution.  But, what they tend not to think too much about is if moving from async to synchronous replication is right for their application or not.

Facts about Galera replication

There’s a lot of different facts about Galera that come into play here, and it isn’t always obvious how they will affect your database workload.  For example:

  • Transaction commit takes approximately the worst packet round trip time (RTT) between any two nodes in your cluster.
  • Transaction apply on slave nodes is still asynchronous from client commit (except on the original node where the transaction is
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Severalnines releases ClusterControl™ for MySQL Galera in cooperation with Codership
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Stockholm – October 25th 2011


Severalnines, provider of automation and management software for easily usable, highly available and auto-scalable cloud database platforms, today announces the release of ClusterControl™ for MySQL Galera in cooperation with Codership, the replication experts organisation that leverages the latest developments in computer science to produce fast and scalable synchronous replication solutions that "just work" for databases and similar applications.



Introducing ClusterControl™ for MySQL Galera






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Have you ever heard about “Read Masters” in MySQL??? Enterprise ready SchoonerSQL provides it.
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Typical MySQL environment involves one Master receiving writes and multiple slaves to scale the reads.The “slave” term has been used in MySQL because the Slave servers have to perform every task in copying from the Master binlog, then updating their relay logs and finally committing to the Slave databases. The Master plays no role in replication here other than storing the replication events in the binlog.
With this kind of Master- Slave set up, there are several limitations-
-       Slave lag-       Stale or old data-       Data loss-       Manual failover which is error-prone and time consuming
In SchoonerSQL, there is no concept of “Slaves” inside synchronous cluster. We refer to it as "Read Masters"



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Showing entries 1 to 4

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