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Displaying posts with tag: Databases (reset)
Basic OS/MySQL Security

If you can do either of these on your MySQL production server, you need to correct immediately.

1. Login directly to your MySQL server as the ‘root’ Linux Operating System user. For example:

$ ssh root@server-name
Password:  ************

2. Connect to MySQL database as the ‘root’ MySQL user without a password.

$ mysql -uroot

Here are the 60 second fixes to address these major security flaws.
To disable direct root access to your server, first ensure you can login as a normal user, then su - or sudo su - appropriately. Then, disable ssh root access with the following configuration change.

$   vi /etc/ssh/sshd_config
    # ensure this is commented out and set to no
    PermitRootLogin no

$   /etc/init.d/sshd restart

This will stop any brute force attack on your server by automated bots and password generators.

Second, the default installation …

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What I have been doing lately in slides, pictures and videos

I just realized that I haven't blogged for more than a month! Shame on me. But I will blame it on being away on conferences and vacation for quite some time And if you are following me on twitter, you may have noticed what I was going on in my life and that I did't get hit by a bus...

So what was going on since I returned back home from the MySQL Conference? First off, I uploaded und sorted my pictures from the conference and the Drizzle developer day on Flickr. I also uploaded the slides (PDF) from Colin and myself speaking about "MySQL Server Backup, …

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Google Goodies and Lego

Dear Kettle friends,

Will Gorman and Mike D’Amour, Senior Developers at Pentaho, are presenting Pentaho’s Google integration work at the Google I/O Developer Conference. (at the Sandbox area to be specific)   Yesterday, Pentaho announced that much.

Here are a few of the integration points:

  • Google maps dashboard (available in the Pentaho BI server you can download)
  • A new Google Docs step was created for Pentaho Data Integration Enterprise Edition
  • Running (AVI, 30MB) the …
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Postgres on OpenSolaris using 2x Quad Cores: Use FX Scheduler

During my PGCon 2009 presentation there was a question on the saw tooth nature of the workload results on the high end side of benchmark runs. To which Matthew Wilcox (from Intel) commented it could be scheduler related. I did not give it much thought at that time till today when I was trying to do some iGen runs for the JDBC Binary Transfer patch (more on that in another blog post) and also Simon's read only scalability runs . Then I realized that I was not following one of my one tuning advice for running Postgres on OpenSolaris. The advice is to  use FX Class of scheduler instead of the default TS Class on OpenSolaris . More details on various scheduler classes can be found on docs.sun.com.

Now how many times I have forgotten to do that …

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Postgres on OpenSolaris using 2x Quad Cores: Use FX Scheduler

During my PGCon 2009 presentation there was a question on the saw tooth nature of the workload results on the high end side of benchmark runs. To which Matthew Wilcox (from Intel) commented it could be scheduler related. I did not give it much thought at that time till today when I was trying to do some iGen runs for the JDBC Binary Transfer patch (more on that in another blog post) and also Simon's read only scalability runs . Then I realized that I was not following one of my one tuning advice for running Postgres on OpenSolaris. The advice is to  use FX Class of scheduler instead of the default TS Class on OpenSolaris . More details on various scheduler classes can be found on docs.sun.com.

Now how many times I have forgotten to do …

[Read more]
Postgres on OpenSolaris using 2x Quad Cores: Use FX Scheduler

During my PGCon 2009 presentation there was a question on the saw tooth nature of the workload results on the high end side of benchmark runs. To which Matthew Wilcox (from Intel) commented it could be scheduler related. I did not give it much thought at that time till today when I was trying to do some iGen runs for the JDBC Binary Transfer patch (more on that in another blog post) and also Simon's read only scalability runs . Then I realized that I was not following one of my one tuning advice for running Postgres on OpenSolaris. The advice is to  use FX Class of scheduler instead of the default TS Class on OpenSolaris . More details on various scheduler classes can be found on docs.sun.com.

Now how many times I have forgotten to do …

[Read more]
MySQL 5.1 in OpenSolaris

If you’ve attended just one of my recent talks, either at the UC, LOSUG or MySQL University, you should know that MySQL 5.1.30 will be in the next official drop of OpenSolaris.

In fact, you can find MySQL 5.1 in the current pre-release builds – I just download build 111 of the future 2009.06 release.

Key things about the new MySQL 5.1 in OpenSolaris:

  1. Contains the set of DTRACE probes that also exists in MySQL 5.4 (see DTrace Documentation)
  2. Like the 5.0, we have SMF integration, so you can start, stop, monitor and change some of the core configuration through SMF
  3. Directory layout is similar to 5.0, with a version specific directory (/usr/mysql/5.1), and the two can coexist if you want to handle a migration from 5.0 to 5.1

To install MySQL 5.1, use the pkg tool to …

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Transcending Technology Specific Boundaries

I had the pleasure to sit on the Performance Panel at the recent Percona Performance Conference. While the panel contained a number of usual MySQL suspects, one person was not familiar, that being Cary Millsap from Method R.

An expert in optimizing Oracle performance, Cary also gave an session on Day 2 that I attended. While he opened professing not to be an expert in MySQL, his talk provided valuable foundation knowledge irrespective of whether you use MySQL or another database product.

Having come myself from 7 straight years in system architecture and performance tuning in Ingres, then a further 6 years in Oracle again heavily involved in system architecture and performance tuning, a lot of my …

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Four short links: 26 May 2009
  1. Flare -- dynamically partitioning and reconstructing key-value server. Currently built on Tokyo Cabinet, but backend is theoretically pluggable. (via joshua on delicious)
  2. Implantable Device Offers Continuous Cancer Monitoring -- the sensor network begins to extend into our bodies. The cylindrical, 5-millimeter implant contains magnetic nanoparticles coated with antibodies specific to the target molecules. Target molecules enter the implant through a semipermeable membrane, bind to the particles and cause them to clump together. That clumping can be detected by MRI (magnetic resonance imaging). The device is made of a polymer called polyethylene, which is commonly used in orthopedic …
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Webinar on the New MySQL Connector/C++

Tomorrow (Wednesday, May 20, 2009), Ulf Wendel and Andrey Hristov, engineers working in the Connector team of Sun|MySQL database group, will be presenting a webinar about the new MySQL Connector/C++. This connector, which uses much the JDBC API patterns, was recently made available as a GA release during the MySQL Conference and Expo.

Register from anywhere in the world and listen to Ulf and Andrey as they talk to you about Connector/C++ from somewhere in Germany!

Addendum: At this very moment, I'm attending this free Webinar. It is truly amazing how well-coordinated this is. So, if you couldn't get to this, try to make it to some other upcoming MySQL Webinar.

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