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Simple STONITH with ProxySQL and Orchestrator
Distributed systems are hard – I just want to echo that. In MySQL, we have quite a number of options to run highly available systems. However, real fault tolerant systems are difficult to achieve. Take...
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Percona XtraDB Cluster Operator 0.3.0 Early Access Release Is Now Available
Percona announces the release of Percona XtraDB Cluster Operator 0.3.0 early access. The Percona XtraDB Cluster Operator simplifies the deployment and management of Percona XtraDB Cluster in a...
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Continuous Replication From a Legacy PostgreSQL Version to a Newer Version...
Native streaming replication in PostgreSQL works only between servers running the same major version. We discussed about logical replication in our previous blog post. In that post, we saw how logical...
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ZFS For MongoDB Backups
We have successfully used ZFS for MySQL® backups and MongoDB® is no different. Normally, backups will be taken from a hidden secondary, either with mongodump , WT hot backup or filesystem snapshots. In...
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pgBackRest – A Great Backup Solution and a Wonderful Year of Growth
pgBackRest addresses many of the must-have features that you’ll want to look for in a PostgreSQL backup solution. I have been a great fan of the pgBackRest project for quite some time, and it gets...
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Percona Backup for MongoDB 0.5.0 Early Release is Now Available
Percona is pleased to announce the early release of our latest software product Percona Backup for MongoDB 0.5.0 on June 17, 2019. The GA version is scheduled to be released later in 2019. Percona...
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Percona XtraDB Cluster 5.6.44-28.34 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.6.44-28.34 on June 19, 2019. Binaries are available from the downloads section or from our software repositories. Percona XtraDB...
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Percona XtraDB Cluster 5.7.26-31.37 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.7.26-31.37 on June 26, 2019. Binaries are available from the downloads section or from our software repositories. Percona XtraDB...
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Setting World-Writable File Permissions Prior to Preparing the Backup Can...
It’s bad practice to provide world-writable access to critical files in Linux, though we’ve seen time and time again that this is done to conveniently share files with other users, applications, or...
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ALTERS, Foreign Keys, and Metadata Locks, oh my!
I’m sure you’ve seen it – you kick off an ALTER and you get the dreaded “waiting on metadata lock”. In many cases, this is expected if you are actively working on the table. However, I recently had a...
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Percona Server for MySQL Highlights – binlog_space_limit
I think it is often confusing to compare upstream MySQL and Percona Server for MySQL, and some helpful information can be found in the introductory notes. But what does that really mean for an ordinary...
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MongoDB: Impact-free Index Builds using Detached ReplicaSet Nodes
Creating an index on a MongoDB collection is simple; just run the command CreateIndex and that’s all there is to it. There are several index types available, and in a previous post, you can find the...
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SET PERSIST in MySQL: A Small Thing for Setting System Variable Values
To set correct system variable values is the essential step to get the correct server behavior against the workload. In MySQL, we have many System variables that can be changed at runtime, and most of...
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Percona XtraDB Cluster 5.6.45-28.36 Is Now Available
Percona is glad to announce the release of Percona XtraDB Cluster 5.6.45-28.36 on September 17, 2019. Binaries are available from the downloads section or from our software repositories. Percona...
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Percona XtraDB Cluster 5.7.27-31.39 Is Now Available
Percona is happy to announce the release of Percona XtraDB Cluster 5.7.27-31.39 on September 18, 2019. Binaries are available from the downloads section or from our software repositories. Percona...
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Percona Backup for MongoDB 1.0.0 GA Is Now Available
Percona is happy to announce the GA release of our latest software product Percona Backup for MongoDB 1.0.0 on September 23, 2019. Percona Backup for MongoDB is a distributed, low-impact solution for...
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Why Database Schema Optimization Matters
If you have been around MySQL for any length of time, you are probably aware that choosing the correct data types and optimizing your schema are actually important tasks. A few years back at Percona...
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Running Percona XtraDB Cluster on Raspberry PI 3
In a previous post, I showed you how to compile Percona Mysql 5.7 on Raspberry PI 3. Now, I’ll show you how to compile and run the latest version of Percona XtraDB Cluster 5.7.26. We will need at least...
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Experimental Binary of Percona XtraDB Cluster 8.0
Percona is happy to announce the first experimental binary of Percona XtraDB Cluster 8.0 on October 1, 2019. This is a major step for tuning Percona XtraDB Cluster to be more cloud- and user-friendly....
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Percona XtraDB Cluster 8.0 New Feature: wsrep_sst_auth Removal
The problem In PXC 5.6 and 5.7, when using xtrabackup-v2 as the SST method, the DBA must create a user with the appropriate privileges for use by Percona XtraBackup (PXB). The username and password of...
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