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3 handy tools to remove problematic MySQL processes
DBAs often encounter situations where they need to kill queries to ensure there are no long-running queries on a MySQL server that would impact performance. Long-running queries can be the result of...
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5 free handy tools for monitoring and managing MySQL replication
MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication.What is MySQL Replication? It’s the process of...
View ArticleAdvanced JSON for MySQL
What is JSONJSON is an text based, human readable format for transmitting data between systems, for serializing objects and for storing document store data for documents that have different...
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Deep dive into MySQL’s innochecksum tool
One of our Percona Support customers recently reported that Percona XtraBackup failed with a page corruption error on an InnoDB table. The customer thought it was a problem or bug in the Percona...
View ArticleMore on (transactional) MySQL metadata locks
Two years ago Ovais Tariq had explained in detail what kinds of problems existed before MySQL introduced metadata locks in 5.5.3 and how these locks help to prevent them. Still, some implications of...
View ArticleTokutek now part of the Percona family
It is my pleasure to announce that Percona has acquired Tokutek and will take over development and support for TokuDB® and TokuMX™ as well as the revolutionary Fractal Tree® indexing technology that...
View ArticleChecking table definition consistency with mysqldiff
Data inconsistencies in replication environments are a pretty common. There are lots of posts that explain how to fix those using pt-table-checksum and pt-table-sync. Usually we only care about the...
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Percona XtraBackup 2.2.8 is now available
Percona is glad to announce the release of Percona XtraBackup 2.2.8 on January 14, 2015. Downloads are available from our download site or Percona Software Repositories.Percona XtraBackup enables...
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Looking deeper into InnoDB’s problem with many row versions
A few days ago I wrote about MySQL performance implications of InnoDB isolation modes and I touched briefly upon the bizarre performance regression I found with InnoDB handling a large amount of...
View ArticleHow to setup a PXC cluster with GTIDs (and have async slaves replicating from...
This past week was marked by a series of personal findings related to the use of Global Transaction IDs (GTIDs) on Galera-based clusters such as Percona XtraDB Cluster (PXC). The main one being the...
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3 handy tools to remove problematic MySQL processes
DBAs often encounter situations where they need to kill queries to ensure there are no long-running queries on a MySQL server that would impact performance. Long-running queries can be the result of...
View ArticleClik here to view.
5 free handy tools for monitoring and managing MySQL replication
MySQL Replication is very simple to set up. In this post I’ll discuss its importance and five handy tools for monitoring and managing MySQL replication.What is MySQL Replication? It’s the process of...
View ArticleAdvanced JSON for MySQL
What is JSONJSON is an text based, human readable format for transmitting data between systems, for serializing objects and for storing document store data for documents that have different...
View ArticleClik here to view.
Deep dive into MySQL’s innochecksum tool
One of our Percona Support customers recently reported that Percona XtraBackup failed with a page corruption error on an InnoDB table. The customer thought it was a problem or bug in the Percona...
View ArticleMore on (transactional) MySQL metadata locks
Two years ago Ovais Tariq had explained in detail what kinds of problems existed before MySQL introduced metadata locks in 5.5.3 and how these locks help to prevent them. Still, some implications of...
View ArticleTokutek now part of the Percona family
It is my pleasure to announce that Percona has acquired Tokutek and will take over development and support for TokuDB® and TokuMX™ as well as the revolutionary Fractal Tree® indexing technology that...
View ArticleChecking table definition consistency with mysqldiff
Data inconsistencies in replication environments are a pretty common. There are lots of posts that explain how to fix those using pt-table-checksum and pt-table-sync. Usually we only care about the...
View ArticleMySQL 5.7 key features
The other day I was discussing new features of MySQL 5.7 with a Percona Support customer. After that conversation, I thought it would be a good idea to compile list of important features of MySQL 5.7....
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Percona XtraBackup 2.2.11 is now available
Percona is glad to announce the release of Percona XtraBackup 2.2.11 on May 28, 2015. Downloads are available from our download site or Percona Software Repositories.Percona XtraBackup enables MySQL...
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Getting EXPLAIN information from already running queries in MySQL 5.7
When a new version of MySQL is about to be released we read a lot of blog posts about the performance and scalability improvements. That’s good but sometimes we miss some small features that can help...
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