Showing entries 1 to 10 of 415
10 Older Entries »
Displaying posts with tag: Percona Software (reset)
How to Start a 3-Node Percona XtraDB Cluster with the Binary Tarball Package

This blog post will help you configure a 3-node Percona XtraDB Cluster using a binary tarball on your local machine. Configuration files are auto-generated with mostly default configurations except for port/IP address details. The tool has the handy script to create configuration files and start multiple Percona XtraDB Cluster nodes on the fly, helping you to start PXC quickly without spending time on startup configuration as well as avoid using any virtual environments.  The script is available in the percona-qa github project. Currently, this script supports PXC binary tarball distributions only.

You can download the appropriate tarball package from the Percona-XtraDB-Cluster-8.0 downloads page. Once you have the packages available on your local machine, unpack the …

[Read more]
Percona XtraDB Cluster 8.0 (experimental release) : SST Improvements

Starting with the experimental release of Percona XtraDB Cluster 8.0, we have made changes to the SST process to make the process more robust and easier to use.

  • mysqldump and rsync are no longer supported SST methods.

    Support for mysqldump was deprecated starting with PXC 5.7 and has now been completely removed.

    MySQL 8.0 introduced a new Redo Log format that limited the use of rsync while upgrading from PXC 5.7 to 8.0. In addition, the new Galera-4 also introduced changes that further limits the use of rsync.

    The only supported SST method is xtrabackup-v2.

  • A separate Percona XtraBackup installation is no longer required.

    The required …

[Read more]
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 this backup user are specified in the wsrep_sst_auth variable.

This is a problem because this username and password was being stored in plaintext and required that the configuration file be secured.

The PXC 8.0 solution

(This feature is still under development and may change before PXC 8.0 GA)

Because the wsrep_sst_auth is only needed on the donor side to take a backup, PXC 8.0 uses an internal user (created specifically for use by PXC) with a randomly generated password. Since this user is only needed on the donor, the plaintext password is not needed on the joiner …

[Read more]
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. This release combines the updated and feature-rich Galera 4, with substantial improvements made by our development team.

Improvements and New Features

Galera 4, included in Percona XtraDB Cluster 8.0, has many new features. Here is a list of the most essential improvements:

  • Streaming replication supports large transactions
  • The synchronization functions allow action coordination (wsrep_last_seen_gtid, wsrep_last_written_gtid, wsrep_sync_wait_upto_gtid)
  • More granular and improved error logging. wsrep_debug is now a multi-valued variable to assist in controlling the logging, and logging messages have been significantly improved.
[Read more]
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 3 RaspberryPi 3 boards, and I recommend you use an external SSD drive to compile and use as MySQL’s “datadir” to avoid the stalls associated with the microSD card, which will cause PXC to run slow.

In this post, we are going to run many OS commands and configure PXC. I recommend having minimal knowledge about PXC and Linux commands.

How to install CentOS

Download the centos image from this link …

[Read more]
Percona Kubernetes Operator for Percona XtraDB Cluster 1.2.0 Now Available

We are glad to announce the 1.2.0 release of the  Percona Kubernetes Operator for Percona XtraDB Cluster.

The Percona Kubernetes Operator for Percona XtraDB Cluster automates the lifecycle and provides a consistent Percona XtraDB Cluster instance. The Operator can be used to create a Percona XtraDB Cluster, or scale an existing Cluster, and contains the necessary Kubernetes settings.

The Operator simplifies the deployment and management of the Percona XtraDB Cluster in Kubernetes-based environments. It extends the Kubernetes API with a new custom resource for deploying, configuring and managing the application through the whole life cycle.

The Operator source code is available …

[Read more]
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 XtraDB Cluster 5.7.27-31.39 is now the current release, based on the following:

All Percona software is open-source and free.

Bugs Fixed

[Read more]
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 XtraDB Cluster 5.6.45-28.36 is now the current release, based on the following:

All Percona software is open-source and free.

Bugs Fixed

[Read more]
Percona Toolkit 3.1.0 Is Now Available

Percona announces the release of Percona Toolkit 3.1.0 on September 13, 2019.

Percona Toolkit is a collection of advanced open-source command-line tools, developed and used by the Percona technical staff, that are engineered to perform a variety of MySQL®, MongoDB®, PostgreSQL® and system tasks that are too difficult or complex to perform manually. With over 1,000,000 downloads, Percona Toolkit supports Percona Server for MySQL, MySQL, MariaDB, PostgreSQL, Percona Server for MongoDB, and MongoDB.

Percona Toolkit, like all Percona software, is free and open source. You can download packages  …

[Read more]
Which Indexes are Cached? Discover with PMM.

One of the great things about working at Percona is the constant innovation that occurs as a result of a deep level of technical expertise. A more recent conversation about the Information Schema table: innodb_cached_indexes led to the desire to produce this information in an easy to digest and useful format. Enter PMM.

Our goal with creating this dashboard was to help bring further insight into how your MySQL database cache is being used. Why is this important? Data is accessed significantly faster when it is cached, so indexes that are cached will allow for an increase in query performance. Until now there has not been an easy way to see which indexes are cached and which are not. We want to take the …

[Read more]
Showing entries 1 to 10 of 415
10 Older Entries »