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MySQL at FrOSCon 2008

MySQL will be well represented at FrOSCon 2008. August 23-24 2008.
This will be my third presence there as a speaker. I fondly remember the pleasant experience of the 2006 and 2007 editions.

This time, MySQL is also a sponsor. In addition to having 5 speakers from the database group, we will also have a table and a BoF (MySQL 5.1 and beyond).
The list of speakers and talks makes you want to be there. (I hope)

Giuseppe Maxia MySQL Community How To
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When VLSI meets DBMS: The Story behind the World’s First SQL Chip

In April this year, Kickfire announced the first high-performance appliance for MySQL. As part of the announcement, the company released data warehouse benchmark results that broke prior records in terms of price/performance and performance in a non-clustered environment. While the creation of a new appliance built exclusively for MySQL along with the benchmark records was noteworthy, perhaps the bigger story lies in what we believe to be the beginning of a paradigm shift in the database world - one marked by the advent of the first SQL chip.

To give some context to this story I have included a graph below which depicts the evolution of VLSI (Very-Large-Scale Integration) semiconductor technology and its growing impact on a broadening range of industries.

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ndb_mgm.exe builds (and works) in mysql-5.1-telco-6.4-win

“MySQL Cluster 6.4 Windows tree” branch in Launchpad

(which really should have the -fail suffix… but anyway)

In what will (soon) be mirrored to launchpad, all but 17 targets (yeah, working on that… but it’s out of 130 or something) build.

Not only that, I’ve used the management client (ndb_mgm.exe) to monitor the cluster running my Bugzilla instance (which is now a rather old 6.3 build).

Getting closer to NDB on Windows.

Be afraid. Be very, very afraid.

Unlocking MySQL : Whats hot and what's not

One of the approaches we are using to look at MySQL scalability is to identify and if possible eliminate hot locks inside MySQL. For locks that cannot be eliminated, we are looking at ways to reduce the mutex hold times, or replace the critical sections with lock-free algorithms. It won't happen overnight, but it needs to be done if we are to make MySQL more scalable.

Along the way we're planning to blog about how we identified and eliminated performance bottlenecks and provide you with all the gory details about the process and technique. This will hopefully entice you all to contribute to fixing performance issues We can reach our goal of a highly scalable MySQL much faster!. If you any other ideas about how we can scale the MySQL scalability effort (pun intended), or you would like to bust some locks, please feel free to let us know.

Fixing locks is sometimes very tricky as sometimes eliminating a really hot lock can only …

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Unlocking MySQL : Whats hot and what's not

One of the approaches we are using to look at MySQL scalability is to identify and if possible eliminate hot locks inside MySQL. For locks that cannot be eliminated, we are looking at ways to reduce the mutex hold times, or replace the critical sections with lock-free algorithms. It won't happen overnight, but it needs to be done if we are to make MySQL more scalable.

Along the way we're planning to blog about how we identified and eliminated performance bottlenecks and provide you with all the gory details about the process and technique. This will hopefully entice you all to contribute to fixing performance issues We can reach our goal of a highly scalable MySQL much faster!. If you any other ideas about how we can scale the MySQL scalability effort (pun intended), or you would like to bust some locks, please feel free to let us know.

Fixing locks is sometimes very tricky as sometimes eliminating a really hot lock can only …

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MMUG: Community, Education, and Good Company in Malta

So, we’re coming up on that time again. When I moved back to Malta in order to work for Pythian one of the things that I wanted to do was to involve myself more in the community. Currently, I’m doing this by trying to keep an active blog with tips and tricks, good standard knowledge, and just overall trying to enlighten people. I’m also doing this by organizing a MySQL User Group here in Malta.

We’re set to have our 2nd meeting this coming Thursday, the 28thof August, in Ta’ Xbiex where we have graciously been donated a board room and projector (and parking space, luckily) for use. I’m trying to get one of our members to give a session about security (not only on MySQL, but also on the OS level to secure the process), and I know there is work being done on a presentation on MySQL Cluster, which I personally find …

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MONyog 2.6 Has Been Released

Changes (as compared to 2.51) include:

Features:
* Log Analyzer code has been completely refactored resulting in better performance and stability and more maintainable code.
* The progress indicator for downloads in Log Analyzer page is now a true quantitative progress bar.
* Error messages in Log Analyzer were rewritten. Every single possible error is now differentiated by a specific message providing help for the situation.

Bug fixes:
* “Group by” option in history/trends page could deliver incorrect results if MySQL and MONyog were using different timezones.
* With SFTP connection to the log file selecting “ALL” for log size to be downloaded in Log Analyzer page could have the result that the log file download would last forever.
* Analyzing log chunks containing BULK INSERT statements could in special situations cause a program …

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Open Source has arrived... where's the money?

Uh oh. It seems my blog posting frequency is dropping even below my modest minimum target of one per month. I didn't post anything at all in my summer vacation. Well, a small child plus a house to re-decorate does take its share of energy I guess.

I thought I'd still follow up with were we left before holidays:

What I'm left with is the question: Are we there? Is this it? Is all that is left just some minor cleaning up after the big battle has already been won? I think it might be. For me, somehow the day I read the news of the release of Symbian as Open Source marks the milestone when it was clear that we had "won". [...]

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Scribus on OS X anyone? PPC (Tiger) and Intel (Leopard)

Help.... the info I find online online is a tad messy and sometimes outdated. Has anyone created installable Scribus packages for OS X yet?

I'd prefer to not go through the whole Fink saga, and MacPorts doesn't appear to want to fly for building qt4. Each approach seems to have some issues, but perhaps that observation too is based on now outdated info. Please do tell me!

Right now I need a PPC Tiger build for an old PowerBook, and a Intel Leopard for myself would be most useful.
Thanks!

Some food for thoughts: How to make use of new SSD devices

The hardware guys are presenting new storage devices called
SSD's based on flash memory. At the moment I think they are
about 3-4 times cheaper than DRAM memory and the gap seems
to be increasing. They're still far from the price of hard
drives but also here the gap seems to be closing.

So as I'm now an employee of Sun that actually puts together
systems with this type of HW in it I get questioned what I
as a DBMS developer can do with those devices.

First some comments on performance. These new devices will be
able to perform reads and writes of a few kilobytes large pages
in about 25-100 microseconds compared to hard drives which
takes about 3-10 milliseconds for the same thing.

An obvious use is obviously to use them to speed up database
logging, particularly in commit situations. However this
doesn't really require any significant …

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