Monthly Archives - October 2015

MySQL and Trojan.Chikdos.A

Symantec published a blog post yesterday regarding MySQL and the Trojan.Chikdos.A as can be seen here
The Symantec post gives detail into the behavior of the Trojan and it’s effects on the Windows system registry, yet gives little detail as to how the required first stage (namely a malicious UDF) is injected, citing:
“In the latest […]

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MySQL 5.7 first impressions on group-replication

During the last few weeks I’ve been testing and playing a bit with the new group-replication plugin available for MySQL 5.7. Before continuing I’d like to clarify some aspects: the plugin is only available in labs and is not yet ready for production. The current version is 0.6. I used 5.7.9 GA running in a Vagrant […]

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How Big Can Your Galera Transactions Be

While we should be aiming for small and fast transactions with Galera, it is always possible at some point you might want a single large transaction, but what is involved?
First, this is supposed to be controlled by two settings,
wsrep_max_ws_rows  and
wsrep_max_ws_size . The first variable is not yet enforced and has no effect – see […]

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State of Percona Server 5.6, MySQL 5.6 and MySQL 5.7 RC

This week Oracle will release MySQL 5.7 GA, so it’s a perfect time to do a quick review of the current state of Percona Server 5.6.26, MySQL 5.6.26 and MySQL-5.7.8 RC. We used two boxes from our benchmark lab for this:
– Box 1: 16 Cores+HT (32 virt cores)/fast PCIe ssd card/RAM: 192GB
– Box 2: […]

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Internet of Things, Messaging and MySQL

Personal Projects with the Internet of Things
So you want to do a personal project with the Internet of Things (maybe a home automation or metrics collection or something else)? In this blog post I will tell about my recent experience with this. I will give a talk on this topic at Oracle OpenWord 2015 (Tuesday, Oct 27, 6:15 p.m., Moscone […]

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