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Load Balancing for MySQL with HAProxy - Webinar Replay in English & French
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January 30, 2015 By Severalnines

In this joint webinar series with our friends from the HAProxy team, we covered the concepts around the popular open-source HAProxy load balancer, and demonstrated how to use it with SQL-based database clusters. We also discussed HA strategies for HAProxy with Keepalived and Virtual IP. 

 

Thanks to everyone who participated in these two sessions this week! Please see below for details on next week’s follow up session 'Performance Tuning for HAProxy & MySQL'.


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Connectors Updated
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Following on the heels of last week’s update to the Java client, the MariaDB project is pleased to today announce updates to both MariaDB Connector/C and Connector/ODBC. They are both Stable (GA) releases.

See the Release Notes and Changelogs for detailed information on each of these releases and contain many bug fixes and enhancements.

Download Connector/C 2.1.0

Release Notes

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Log Buffer #408, A Carnival of the Vanities for DBAs
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This Log Buffer Edition covers various innovative blog posts from various fields of Oracle, MySQL and SQL Server. Enjoy!!!


Oracle:

A user reported an ORA-01114 and an ORA-27069 in a 3rd party application running against an Oracle 11.1 database.

Oracle SOA Suite 12c: Multithreaded instance purging with the Java API.

Oracle …


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MySQL High Availability and Disaster Recovery
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Users seeking high availability, disaster recovery and zero downtime maintenance operation for business-critical MySQL applications face confusing choices. Is multi-master or master/slave clustering better? What about synchronous versus asynchronous replication? Using a plain vanilla, stock MySQL or a modified version of it? Which of these choices are right for data-driven businesses that

MariaDB Galera Cluster 10.0.16 now available
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Download MariaDB Galera Cluster 10.0.16

Release Notes Changelog What is MariaDB Galera Cluster?

MariaDB APT and YUM Repository Configuration Generator

The MariaDB project is pleased to …

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Speaking at FOSDEM: Pseudo GTID and easy replication management
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This coming Sunday I'll be presenting Pseudo GTID and easy replication management at FOSDEM, Brussels.

There's been a lot of development on Pseudo GTID these last few weeks. In this talk I'll show you how you can use Pseudo GTID instead of "normal" GTID to easily repoint your slaves, recover from intermediate master failure, promote slaves to masters as well as emply crash safe replication without crash safe …

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MySQL Backup Strategy – Slides
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Send to Kindle

Hi there, it’s been a few months since Percona Live London has finished, but I managed just now to get sometime to post the slides from my presentation about backups. Please, take a look and feel free to comment.

Pdf Version


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GHOST vulnerability (CVE-2015-0235) Percona response
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Cloud security company Qualys announced Tuesday the issues prevalent in glibc since version 2.2 introduced in 2000-11-10 (the complete Qualys announcement may be viewed here). The vulnerability, CVE-2015-0235, has been dubbed “GHOST.”

As the announcement from Qualys indicates, it is believed that MySQL and by extension Percona Server are not affected by this issue.

Percona is in the process of conducting our own review into the issue related to the Percona Server source code – more information will be released as …

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Multi-threaded replication with MySQL 5.6: Use GTIDs!
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MySQL 5.6 allows you to execute replicated events in parallel as long as data is split across several databases. This feature is named “Multi-Threaded Slave” (MTS) and it is easy to enable by setting slave_parallel_workers to a > 1 value. However if you decide to use MTS without GTIDs, you may run into annoying issues. Let’s look at two of them.

Skipping replication errors

When replication stops with an error, a frequent approach is to “ignore now and fix later.” This means you will run SET GLOBAL sql_slave_skip_counter=1 to be able to restart replication as quickly as possible and …

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MySQL and the GHOST: glibc gethostbyname buffer overflow
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Qualys announced they had found an exploit in one of the Linux core libraries – glibc – using a buffer overflow technique in gethostbyname(). They have developed a proof-of-concept in which simply sending a specially created e-mail to a mail server enabled them to create a remote shell to the Linux machine. According to Qualys, “This bypasses all existing protections (like ASLR, PIE and NX) on both 32-bit and 64-bit systems.”. How does it affect MySQL servers? Read on!

The vulnerable library call provides DNS name resolution …

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Showing entries 1 to 10 of 33895 10 Older Entries

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