Quantcast
Channel: galera Archives - Percona Database Performance Blog
Browsing latest articles
Browse All 117 View Live

Image may be NSFW.
Clik here to view.

CRITICAL UPDATE for Percona XtraDB Cluster users: 5.7.23-31.31.2 Is Now...

To resolve a critical regression, Percona announces the release of Percona XtraDB Cluster 5.7.23-31.31.2 on October 2, 2018 Binaries are available from the downloads section or from our software...

View Article


Image may be NSFW.
Clik here to view.

Percona XtraDB Cluster 5.7.24-31.33 Is Now Available

Percona is glad to announce the release of Percona XtraDB Cluster 5.7.24-31.33 (PXC) on January 4, 2019. Binaries are available from the downloads section or from our software repositories. Percona...

View Article


Image may be NSFW.
Clik here to view.

Percona XtraDB Cluster 5.6.42-28.30 Is Now Available

Percona announces the release of Percona XtraDB Cluster 5.6.42-28.30 (PXC) on January 4, 2019. Binaries are available from the downloads section or our software repositories. Percona XtraDB Cluster...

View Article

Image may be NSFW.
Clik here to view.

Percona XtraDB Cluster 5.7.25-31.35 Is Now Available

Percona is glad to announce the release of Percona XtraDB Cluster 5.7.25-31.35 on February 28, 2018. Binaries are available from the downloads section or from our software repositories. This release of...

View Article

Image may be NSFW.
Clik here to view.

Percona XtraDB Cluster 5.6.43-28.32 Is Now Available

Percona is glad to announce the release of Percona XtraDB Cluster 5.6.43-28.32 on February 28, 2019. Binaries are available from the downloads section or from our software repositories. This release...

View Article


Image may be NSFW.
Clik here to view.

How to Perform Compatible Schema Changes in Percona XtraDB Cluster (Advanced...

If you are using Galera replication, you know that schema changes may be a serious problem. With its current implementation, there is no way even a simple ALTER will be unobtrusive for live production...

View Article

Image may be NSFW.
Clik here to view.

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...

View Article

Image may be NSFW.
Clik here to view.

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...

View Article


Image may be NSFW.
Clik here to view.

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...

View Article


Image may be NSFW.
Clik here to view.

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...

View Article

Image may be NSFW.
Clik here to view.

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....

View Article

Image may be NSFW.
Clik here to view.

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...

View Article

Image may be NSFW.
Clik here to view.

Help Drive the Future of Percona XtraDB Cluster

Percona is happy to announce the experimental release of Percona XtraDB Cluster 8.0. This is a major step for tuning Percona XtraDB Cluster to be more cloud- and user-friendly. This is the second...

View Article


Image may be NSFW.
Clik here to view.

Replication Between Two Percona XtraDB Clusters, GTIDs and Schema Changes

I got this question on the “How to Avoid Pitfalls in Schema Upgrade with Percona XtraDB Cluster (PXC)” webinar and wanted to answer it in a separate post. Will RSU have an effect on GTID consistency if...

View Article

Image may be NSFW.
Clik here to view.

Various Ways to Perform Schema Upgrades with Percona XtraDB Cluster

Schema changes are the big challenges in Galera replication. So, it is recommended to understand the schema changes operation for everyone who uses the Percona XtraDB Cluster (PXB)/Galera clusters. In...

View Article


Image may be NSFW.
Clik here to view.

CVE-2020-15180 – Affects Percona XtraDB Cluster

Galera replication technology, a key component of Percona XtraDB Cluster, suffered from a remote code execution vulnerability. Percona has been working with the vendor since early September on this...

View Article

Image may be NSFW.
Clik here to view.

Inconsistent Voting in Percona XtraDB Cluster

AKA Cluster Error Voting… What is Cluster Error Voting (CEV)? “Cluster Error Voting is a new feature implemented by Alexey Yurchenko, and it is a protocol for nodes to decide how the cluster will react...

View Article


Image may be NSFW.
Clik here to view.

A Look Into Percona XtraDB Cluster Non-Blocking Operation for Online Schema...

Percona XtraDB Cluster 8.0.25 (PXC) has introduced a new option to perform online schema modifications: NBO (Non-Blocking Operation). When using PXC, the cluster relies on the wsrep_OSU_method...

View Article

Image may be NSFW.
Clik here to view.

Consequences of Forcing Bootstrap on Percona XtraDB Cluster

Recently, I was working on a very unfortunate case that revolved around diverging clusters, data loss, missing important log errors, and forcing commands on Percona XtraDB Cluster (PXC). Even though...

View Article

Image may be NSFW.
Clik here to view.

How Missing Primary Keys Break Your Galera Cluster

Any Galera documentation about limitations will state that tables must have primary keys. They state that DELETEs are unsupported and other DMLs could have unwanted side-effects such as inconsistent...

View Article
Browsing latest articles
Browse All 117 View Live