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Previous 30 Newer Entries Showing entries 31 to 60 of 205 Next 30 Older Entries

Displaying posts with tag: Percona Software (reset)

Using Percona rsync repositories to set up the local CentOS mirror
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One of the more popular support requests we get involves setting up the official Percona rsync repositories that can be used to set up local mirrors. I’m glad to announce that this was implemented recently. You can now access the rsync repository at:

rsync://rsync.percona.com/rsync/

Setting up the local mirror can be useful if you have a larger number of systems and you don’t want to download packages from the remote repository multiple times, it can also be useful if the original repository is slower or inaccessible.

Setting up the local repository

Create a folder on disk where the files will be downloaded. Make sure you have enough space for this, currently repository for CentOS 6 is almost 2GB.

[root@percona1]#

  [Read more...]
Percona XtraDB Cluster 5.6 GA release now available
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Percona is pleased to announce the first General Availability release of the leading open source High Availability solution for MySQL, Percona XtraDB Cluster 5.6 on January 30, 2014. Binaries are available from downloads area or from our software repositories.

Percona XtraDB Cluster 5.6
Percona XtraDB Cluster 5.6 is an active/active cluster solution for High Availability (HA) MySQL that delivers performance and

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Percona XtraBackup 2.1.7 is now available
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Percona is glad to announce the release of Percona XtraBackup 2.1.7 on January 24th, 2014. Downloads are available from our download site here and Percona Software Repositories.

This release is the current GA (Generally Available) stable release in the 2.1 series. Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases.

  [Read more...]
Analyzing WordPress MySQL queries with Query Analytics
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This blog, MySQLPerformanceBlog.com, is powered by WordPress, but we never really looked into what kind of queries to MySQL are used by WordPress. So for couple months we ran a Query Analytics (part of Percona Cloud Tools) agent there, and now it is interesting to take a look on queries. Query Analytics uses reports produced by pt-query-digest, but it is quite different as it allows to see trends and dynamics of particular query, in contrast to pt-query-digest, which is just one static report.

Why looking into queries important? I gave an intro in my previous post from this series.

So Query Analytics give the report on the top queries. How to detect which

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Percona Cloud Tools: Making MySQL performance easy
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One of our primary focuses at Percona is performance. Let me make some statements on what is “performance.”

In doing so I will refer to two pieces of content:

I highly recommend that you familiarize yourself with both of them.

Performance

Performance is about tasks and time.
We say that the system is performing well if it

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Percona Server 5.5.35-33.0 is now available
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Percona Server version 5.5.35-33.0

Percona is glad to announce the release of Percona Server 5.5.35-33.0 on December 20th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.35, including all the bug fixes in it, Percona Server 5.5.35-33.0 is now the current stable release in the 5.5 series. All of Percona‘s

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Percona Toolkit 2.2.6 is now available
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Percona is glad to announce the release of Percona Toolkit 2.2.6 on December 20th, 2013 (Downloads are available here and from the Percona Software Repositories). This release is the current GA (Generally Available) stable release in the 2.2 series. This release has 16 bug fixes and a few new features. One bug fix is very important, so 2.2 users are strongly encouraged to upgrade:

Fixed

  [Read more...]
Percona XtraDB Cluster 5.5.34-25.9 is now available
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Percona is glad to announce the release of Percona XtraDB Cluster 5.5.34-25.9 on December 4, 2013. Binaries are available from the downloads area or from our software repositories.

Based on Percona Server 5.5.34-32.0 including all the bug fixes in it, Galera Replicator and on Codership wsrep API 5.5.34-25.9, Percona XtraDB Cluster

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Percona XtraBackup – A workaround to the failed assertion bug
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I recently conducted a test backup of my “master-slave” setup in my VirtualBox as I was migrating from Percona Server 5.6.12 to version 5.6.13-rel61.0 with Percona XtraBackup v2.2.0 rev. 4885. However, doing the backup on my slave, I encountered this problem:

[04] Compressing and streaming ./test/checksum.ibd
[01] Compressing and streaming ./mysql/slave_master_info.ibd
Assertion "to_read % cursor->page_size == 0" failed at fil_cur.cc:293
innobackupex: Error: The xtrabackup child process has died at /usr/bin/innobackupex line 2641.

This is related to a bug posted by my colleague 

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Integrating pt-online-schema-change with a Scripted Deployment
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Recently, I helped a client that was having issues with deployments causing locking in their production databases.  At a high level, the two key components used in the environment were:

  • Capistrano (scripted deployments) [website]
  • Liquibase (database version control) [website]

At a high level, they currently used a CLI call to Liquibase as a sub-task within a larger deployment task.  The goal of this engagement was to modify that sub-task to run Liquibase in a non-blocking fashion as opposed to the default that just runs native ALTERS against the database.

As I wasn’t very familiar with Liquibase, I took this opportunity to learn more about it and it seems like a very valuable tool.

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Quick link to Percona Toolkit bugs
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In this post I wanted to highlight

percona.com/bugs/<tool>
 , for example: percona.com/bugs/pt-stalk.  This only works for Percona Toolkit.  We often advise people to check a tool’s current bugs, but we don’t always say how.

The official link for Percona Toolkit bugs on Launchpad is https://bugs.launchpad.net/percona-toolkit/+bugs, but then you still have search from there.  So this quick link is a lot easier if, for example,

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Percona Server 5.5.34-32.0 is now available
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Percona Server version 5.5.34-32.0

Percona is glad to announce the release of Percona Server 5.5.34-32.0 on October 28th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.34, including all the bug fixes in it, Percona Server 5.5.34-32.0 is now the current stable release in the 5.5 series. All of Percona‘s

  [Read more...]
Percona Server 5.1.72-14.10 is now available
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Percona Server version 5.1.72-14.10

Percona is glad to announce the release of Percona Server 5.1.72-14.10 on October 28th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.72, including all the bug fixes in it, Percona Server 5.1.72-14.10 is now the current stable release

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Percona Server 5.6.14 with TokuDB 7.1 Experimental build
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We just announced Percona Server 5.6.14 release, and I decided to make this build with the TokuDB 7.1 engine.
The build is available here in the TESTING area.

You are welcome to play with these binaries, but keep in mind:

  • This is an experimental build and not supposed to be used in production environment
  • The binaries built on Ubuntu 12.04 LTS server and may not work on other Linux distributions

The post Percona Server 5.6.14 with TokuDB 7.1 Experimental build appeared first on MySQL Performance Blog.

Percona Server 5.6.14-62.0 is now available
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Percona Server version 5.6.14-62.0

Percona is glad to announce the release of Percona Server 5.6.14-62.0 on October 24th, 2013 (Downloads are available here and from the Percona Software Repositories.

Based on MySQL 5.6.14, including all the bug fixes in it, Percona

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Percona Monitoring Plugins 1.0.5 release for MySQL
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Percona is glad to announce the release of Percona Monitoring Plugins 1.0.5 for MySQL. The components are designed to integrate seamlessly with widely deployed solutions such as Nagios and Cacti, and are delivered in the form of templates, plugins, and scripts.

Changelog:

* Added mysql-ca option to ss_get_mysql_stats.php (bug 1213857)
* Added user info to the idle_blocker_duration check of pmp-check-mysql-innodb (bug 1215317)
* Extended pmp-check-mysql-processlist with more locking states (bug 1213859)
* ss_get_mysql_stats.php did not work with custom mysql port (bug 1213862)
* ss_get_mysql_stats.php silently failed



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A closer look at Percona Server 5.6
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Yesterday we announced the GA release of Percona Server 5.6, the latest release of our enhanced, drop-in replacement for MySQL. Percona Server 5.6 is the best free MySQL alternative for demanding applications. Our third major release, Percona Server 5.6 offers all the improvements found in MySQL 5.6 Community Edition plus scalability, availability, backup, and security features some of which are found only in MySQL 5.6 Enterprise Edition.

Percona Server 5.6 comes with:

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Taking backups on Percona XtraDB Cluster (without stalls!)
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I occasionally see customers who are taking backups from their PXC clusters that complain that the cluster “stalls” during the backup.  As I wrote about in a previous blog post, often these stalls are really just Flow Control.  But why would a backup cause Flow control?

Most backups I know of (even Percona XtraBackup) take a FLUSH TABLES WITH READ LOCK (FTWRL) at some point in the backup process.  This can be disabled in XtraBackup (in certain circumstances), but it is enabled by

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Percona Server 5.6.13-61.0 first GA release is now available
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Percona Server version 5.6.13-61.0

Percona is glad to announce the first GA (Generally Available) release of Percona Server 5.6.13-61.0 on October 7th, 2013 (Downloads are available here and from the Percona Software Repositories.

Based on MySQL 5.6.13, including all the bug fixes in it,

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The benefits of a drop-in compatible MySQL alternative
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Percona Server provides users with a variety of powerful benefits including enterprise-grade features, high performance in demanding use cases, rich diagnostics, and access to unique Percona XtraBackup capabilities, all for free and open source. In addition, Percona Server is a drop-in MySQL replacement. Compatibility with MySQL has important ramifications (as well as some risks) as Giuseppe Maxia highlighted in a recent blog post about MySQL alternatives. Our commitment to drop-in compatibility with MySQL has important benefits for Percona Server users and drives our

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What’s your Percona story?
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Percona’s development teams are always delighted to hear about the many ways that engineers and operations teams use our open source software.

Companies say they value the enterprise-grade features and high performance that Percona Server delivers for free and use the software to power critical business applications, hot new apps, and even a growing web host.

We’d love to hear from you. If you use Percona Server or our other software in a production environment,

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Experimental GIT Mirrors of Percona XtraBackup, Percona Server plus Oracle MySQL trees
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I recently blogged on setting up Experimental Git mirror of Oracle MySQL trees up on GitHub. I’m now happy to announce that there are also mirrors for:

I’ve also updated the Oracle MySQL GIT mirror to include MySQL 5.7 and the (now abandoned) MySQL 6.0. I include the abandoned 6.0 tree as it can provide useful archaeology as to where some code came from.

I’d love to hear about any positive/negative experiences using these

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Percona XtraDB Cluster: Setting up a simple cluster
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Percona XtraDB Cluster (PXC) is different enough from async replication that it can be a bit of a puzzle how to do things the Galera way.  This post will attempt to illustrate the basics of setting up 2 node PXC cluster from scratch.

Requirements

Two servers (could be VMs) that can talk to each other.  I’m using CentOS for this post.  Here’s a dirt-simple Vagrant setup: https://github.com/jayjanssen/two_centos_nodes to make this easy (on Virtualbox).

These servers are talking over the 192.168.70.0/24 internal network for our example.

jayj@~/Src $ git clone https://github.com/jayjanssen/two_centos_nodes.git
jayj@~/Src $ cd two_centos_nodes
jayj@~/Src/two_centos_nodes $
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Percona Server 5.6-RC3 with TokuDB 7.0.4 – experimental build
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While we are working hard on the final push of Percona Server 5.6 GA (I know that many people are waiting on this, but stay with us – we want to ensure that we have a quality release with great performance), I decided to make an experimental build of Percona Server 5.6 with the TokuDB engine.

It’s available here: http://www.percona.com/downloads/TESTING/Percona-TokuDB/.

If you are interested, please test it and provide us with feedback. If things look good, in couple months we may release an official Percona Server 5.6 with TokuDB.

The post

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Percona XtraBackup 2.0.8 is now available
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Percona XtraBackup 2.0.8 was released September 4.

Percona is glad to announce the release of Percona XtraBackup 2.0.8 on September 4, 2013. Downloads are available from our download site here and Percona Software Repositories. Percona XtraBackup is the world’s only open-source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases.

This release is the current GA (Generally

  [Read more...]
Percona Server 5.1.71-14.9 is now available!
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Percona Server version 5.1.71-14.9

Percona is glad to announce the release of Percona Server 5.1.71-14.9 on August 27th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.1.71, including all the bug fixes in it, Percona Server 5.1.71-14.9 is now the current stable release in the

  [Read more...]
Percona Server 5.5.33-31.1 is now available
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Percona Server version 5.5.33-31.1

Percona is glad to announce the release of Percona Server 5.5.33-31.1 on August 27th, 2013 (Downloads are available here and from the Percona Software Repositories). Based on MySQL 5.5.33, including all the bug fixes in it, Percona Server 5.5.33-31.1 is now the current stable release in the

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Why is the ibdata1 file continuously growing in MySQL?
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We receive this question about the ibdata1 file in MySQL very often in Percona Support.

The panic starts when the monitoring server sends an alert about the storage of the MySQL server – saying that the disk is about to get filled.

After some research you realize that most of the disk space is used by the InnoDB’s shared tablespace ibdata1. You have innodb_file_per_table enabled, so the question is:

What is stored in  [Read more...]

Want to archive tables? Use Percona Toolkit’s pt-archiver
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Percona Toolkit’s pt-archiver is one of the best utilities to archive the records from large tables to another tables or files. One interesting thing is that pt-archiver is a read-write tool. It deletes data from the source by default, so after archiving you don’t need to delete it separately.

As it is done by default, you should take care before actually running it on then production server. You can test your archiving jobs with the – dry-run  OR you can use the

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Percona XtraBackup 2.1.4 is now available
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Percona is glad to announce the release of Percona XtraBackup 2.1.4 on August 9th, 2013. Downloads are available from our download site here and Percona Software Repositories.

This release is the current GA (Generally Available) stable release in the 2.1 series. Percona XtraBackup is an open source, free MySQL hot backup software that performs non-blocking backups for InnoDB and XtraDB databases.

New

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Previous 30 Newer Entries Showing entries 31 to 60 of 205 Next 30 Older Entries

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