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10 Newer Entries Showing entries 31 to 40 of 786 10 Older Entries

Displaying posts with tag: Replication (reset)

MySQL Health Check Script
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Ever get called out for a MySQL issue only to realize that there was no issue?  It was a false alarm from the monitor.  We sure have and it’s frustrating, especially at 3:00 or 4:00 in the morning!

Many DBAs work in an environment where there is some sort of first level support that gets assigned tickets first.  Unfortunately, many of the times these groups are, shall we say, less than skilled in MySQL.  As a result, they quickly escalate the ticket onto the primary on-call DBA, even when there is really nothing wrong.

Much of the time, there are multiple types of MySQL topology in these environments: standalone, galera cluster, …

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Percona Live Amsterdam - September 21-23, 2015
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I am attending Percona Live Amsterdam 2015 on September 21-23, 2015.

I will be on stage three times:

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Standardized MySQL Configuration File For Standalone, Replication, & Clustering
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In order to simplify the configuration of MySQL for standalone nodes, clusters, and replication configurations, we decided it would be easiest to maintain a common my.cnf file.  We have to admit, the idea wasn’t ours; we picked the idea up from www.fromdual.com and thought it was such a great idea, we decided to implement it as well.

Below is our version of a standardized my.cnf implementing several of our best practices.  We hope it will be of benefit to you.

########################################################################################################
# my.cnf (Configuration file for …

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Abstracting Binlog Servers and MySQL Master Promotion without Reconfiguring all Slaves
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http://blog.booking.com/abstracting_binlog_servers_and_mysql_master_promotion_wo_reconfiguring_slaves.html

Follow the link above to read my latest article on the Booking.com Developer Blog.  It is about Binlog Servers and how to promote a slave as the new master without reconfiguring all slaves.

This is also a good opportunity to remind you of my next talks:

I’ll be giving a talk about Binlog

MySQL Utilities release-1.6.2 BETA
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The MySQL Utilities Team is pleased to announce the Beta release of MySQL Utilities. This release includes a number of improvements for usability, stability, and a few enhancements. A complete list of all improvements can be found in our release notes.…

MySQL Utilities release-1.5.5 GA
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The MySQL Utilities Team is pleased to announce the latest general availability (GA) release of MySQL Utilities. This release includes a number of improvements for usability, stability, and a few enhancements. A complete list of all improvements can be found in our release notes.…

Orchestrator visual cheatsheet, TL;DR the "smart" way
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Orchestrator is really growing. And the amount of users (DBAs, sys admins) using it is growing. Which gives me a lot of immediate feedback in the form of "Look, there's just too many options to move slaves around! Which ones should we use?"

TL;DR look at the two visualized commands below

They are enough

The "smart" commands to end all commands

So all relocation commands are important, and give you fine-grained, pin-pointed control of the method of topology refactoring. However, most of the …

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How MySQL-Sandbox is tested, and tests MySQL in the process
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MySQL-Sandbox is a great tool for testing a new release, and in fact this is what I do when a new MySQL tarball becomes available. I don't think many people are aware of the full testing capabilities of the sandbox, though.
When you think about testing, you may just think of creating a sandbox with the new tarball, and then hammering it with your pet procedure. That works, of course, as the main purpose of MySQL-Sandbox is to allow you to do just that. There is, however, a full test suite that can tell you in a short while if your tarball is compatible with the past or not.
This …

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Orchestrator 1.4.340: GTID, binlog servers, Smart Mode, failovers and lots of goodies
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Orchestrator 1.4.340 is released. Not quite competing with the MySQL latest changelog, and as I haven't blogged about orchestrator featureset in a while, this is a quick listing of orchestrator features available since my last publication:

  • Supports GTID (Oracle & MariaDB)
    • GTID still not being used in automated recovery -- in progress.
    • enable-gtid, disable-gtid, …
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MySQL replication in action - Part 5 - parallel appliers
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Previous episodes:

MySQL replication in action - Part 1: GTID & CoMySQL replication in action - Part 2 - Fan-in topology


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10 Newer Entries Showing entries 31 to 40 of 786 10 Older Entries

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