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Showing entries 1 to 10 of 40 10 Older Entries

Displaying posts with tag: upgrade (reset)

On Upgrades to Percona Server 5.7 GA: Ubuntu 14.04 Case
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After upgrading Percona Server 5.6.28 (and "full stack" of Percona software) to 5.7.10-3 GA on CentOS 6 and building it from Git Source on Fedora Core 23 yesterday, I've decided to spend some time upgrading Percona Server on my netbook that plays a role of "home build/test/VMs server" and runs under Ubuntu 14.04:
openxs@ao756:~$ uname -a
Linux ao756 3.13.0-77-generic #121-Ubuntu SMP Wed Jan …

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On Upgrades to Percona Server 5.7 GA: CentOS 6 Case
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As you probably noted, Percona had finally released Percona Server 5.7 GA two days ago. I had not paid much attention to this branch during last month or so, but as it's GA now I decided to check what's there, how it works and install/upgrade different boxes and VMs to use it.

For testing purposes and for this series of blog posts I am going to build it from Git source (at least on Fedora Core 23), upgrade to it on 32-bit …

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How to upgrade your master server with minimal downtime
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Here’s a step-by-step guide on how to invert roles for master and slave so you can perform a master server upgrade, and then switch roles back to the original setup.

* While following this guide consider server-A as your original master and server-B as your original slave. We will assume server-B already produces binlogs and that both nodes have log-slave-updates=1 in my.cnf


Check this following link for more details on log-slave-updates:

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Fun with Bugs #39 - Known Bugs in MySQL 5.7.9 GA
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These days everybody is excited with recent announcement of MySQL 5.7.9 GA release. If you are not aware of this event yet (I've noted it from numerous posts even during my short vacation), wait for the Oracle Open World 2015 to begin tomorrow to announce it even wider and louder!

I already have 5.7.9 built from source, up and running, so it's time to check what else we can expect from this new GA release besides new great features (this is a topic for a …

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Fun with Bugs #38 - Regression Bugs in MySQL 5.6
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I often have to reply to questions related to upgrade from, say, MySQL 5.5.x to latest MySQL (or Percona) Server 5.6.x (5.6.27 for MySQL and 5.6.26 for Percona at the moment). One of them is sometimes about "any known bugs" that may affect a user after upgrade.

One may assume that now, 2 years and 8 months after the first GA release of MySQL 5.6.10, there should be very few bugs (we call them regression bugs) of a kind that is interesting for the user planning upgrade from 5.5.x. I checked yesterday and found out it's not the case actually. It took me half an hour to end up with the list of more than 20 regression bugs that are …

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Changed defaults between MySQL 5.6 and 5.7
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MySQL 5.7 comes with many changes. Some of them are better explained than others.

I wanted to see how many changes I could get by comparing SHOW VARIABLES in MySQL 5.6 and 5.7.
The most notable ones are:

  • binlog_format: the default is now ROW. This variable affects the format of the binary log, whether you use it as a backup complement or for replication, the …





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innodb_fast_checksum=1 and upgrading to MySQL 5.6
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The Percona version of MySQL has been such a good replacement for the generic MySQL version that many of the features and options that existed in Percona have been merged into the generic MySQL.

Innodb_fast_checksum was an option added to improve the performance of checksums.

The system variable was replaced by innodb_checksum_algorithm in 5.7.

Unfortunately, when you go to upgrade from Percona 5.x to Percona (or generic mysql) 5.6, an in-place upgrade will fail.

The error(s) will be …

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HowTo: Offline Upgrade of Galera Cluster to MySQL 5.6 or MariaDB 10
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MySQL 5.6 has an extensive list of new features and changes, so upgrading from a previous version can be risky if not tested extensively. For this reason, we recommend our users to read and understand the changes before doing the upgrade. If you are on older MySQL versions, it is probably time to think about upgrading. MySQL 5.6 was released in February 2013, that’s almost two years ago!

A major upgrade, e.g., from MySQL 5.5 to 5.6 or MariaDB 5.5 to 10, requires the former MySQL/MariaDB server related packages to be …

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ClusterControl 1.2.8 Released
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September 17, 2014 By Severalnines

The Severalnines team is pleased to announce the release of ClusterControl 1.2.8. This release contains key new features along with performance improvements and bug fixes. We have outlined some of the key new features below. 

 

Highlights of ClusterControl 1.2.8 include:

  • YUM/APT repositories for ClusterControl
  • Deployment and scaling of single-node MySQL, MariaDB and MongoDB
  • Alerts and incident tracking with …
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Making MySQL Better More Quickly
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With the upcoming release of MySQL 5.7 I begin to see a problem which I think needs attention at least for 5.8 or whatever comes next.

  • The GA release cycle is too long, being about 2 years and that means 3 years between upgrades in a production environment
  • More people use MySQL and the data it holds becomes more important. So playing with development versions while possible becomes harder.  This is bad for Oracle as they do not get the feedback they need to adjust the development of new features and have to best guess the right choices.
  • Production DBAs do want new features and crave them if it makes our life easier, if …
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Showing entries 1 to 10 of 40 10 Older Entries

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