InnoDB

Percona XtraBackup 8.0.4 Is Now Available

Percona XtraBackup 8.0

Percona is glad to announce the release of Percona XtraBackup 8.0.4 on December 10, 2018. You can download it from our download site and apt and yum repositories.
Percona XtraBackup enables MySQL backups without blocking user queries, making it ideal for companies with large data sets and mission-critical applications that cannot tolerate long periods of downtime. Offered free as an open source solution, […]

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MySQL 8 and The FRM Drop… How To Recover Table DDL

MySQL 8 frm drop recover ddl

… or what I should keep in mind in case of disaster

To retrieve and maintain in SQL format the definition of all tables in a database, is a best practice that we all should adopt. To have that under version control is also another best practice to keep in mind.
While doing that may seem […]

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Compression options in MySQL (part 1)

Over the last year, I have been pursuing a part time hobby project exploring ways to squeeze as much data as possible in MySQL. As you will see, there are quite a few different ways. Of course things like compression ratio matters a lot but, other items like performance of inserts, selects and updates, […]

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How To Best Use Percona Server Column Compression With Dictionary

Database Compression

Very often, database performance is affected by the inability to cache all the required data in memory. Disk IO, even when using the fastest devices, takes much more time than a memory access. With MySQL/InnoDB, the main memory cache is the InnoDB buffer pool. There are many strategies we can try to fit as […]

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Percona XtraBackup 8.0-3-rc1 Is Available

Percona XtraBackup 8.0

Percona is glad to announce the release candidate of Percona XtraBackup 8.0-3-rc1 on October 31 2018. You can download it from our download site and apt and yum repositories.
This is a Release Candidate quality release and it is not intended for
production. If you want a high quality, Generally Available release, use the current stable version (the most recent stable version at […]

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Instrumenting Read Only Transactions in InnoDB

Instrumenting read only transactions MySQL

Probably not well known but quite an important optimization was introduced in MySQL 5.6 – reduced overhead for “read only transactions”. While usually by a “transaction” we mean a query or a group of queries that change data, with transaction engines like InnoDB, every data read or write operation is a transaction.
Now, as a […]

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Announcement: Second Alpha Build of Percona XtraBackup 8.0 Is Available

Percona XtraBackup 8.0

The second alpha build of Percona XtraBackup 8.0.2 is now available in the Percona experimental software repositories.
Note that, due to the new MySQL redo log and data dictionary formats, the Percona XtraBackup 8.0.x versions will only be compatible with MySQL 8.0.x and Percona Server for MySQL 8.0.x. This release supports backing up Percona Server […]

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Scaling IO-Bound Workloads for MySQL in the Cloud – part 2

Rplot07-innodb-iops

This post is a followup to my previous article https://www.percona.com/blog/2018/08/29/scaling-io-bound-workloads-mysql-cloud/
In this instance, I want to show the data in different dimensions, primarily to answer questions around how throughput scales with increasing IOPS.
A recap: for the test I use Amazon instances and Amazon gp2 and io1 volumes. In addition to the original post, I also […]

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Announcement: Experimental Build of Percona XtraBackup 8.0

Percona XtraBackup 8.0

Experimental Build of Percona XtraBackup 8.0 released
An experimental alpha version of Percona XtraBackup 8.0.1 is now available in the Percona experimental software repositories.
A few things to note about this release:

We removed the deprecated innobackupex in this release
Due to the new MySQL redo log and data dictionary formats the Percona XtraBackup 8.0.x versions will only be […]

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Scaling IO-Bound Workloads for MySQL in the Cloud

InnoDB / MyRocks throughput on IO1

Is increasing GP2 volumes size or increasing IOPS for IO1 volumes a valid method for scaling IO-Bound workloads? In this post I’ll focus on one question: how much can we improve performance if we use faster cloud volumes? This post is a continuance of previous cloud research posts:

Saving With MyRocks in The Cloud
Percona XtraDB […]

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