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Log Buffer #100: a Carnival of the Vanities for DBAs
Log Buffer, the weekly review of database blogs, is 100 editions (and almost two-years) old today! Lewis Cunningham has returned to LB to publish The Big 100th edition of LB on An Expert?s Guide to Oracle Technology.
No speech, but I would like to thank Log Buffer’s readers and especially all of Log Buffer’s editors for making LB a worthwhile and fun stop in the database “blogosphere”. It’s very easy to see why LB editors are successful in what they do — they are consistently enthusiastic, diligent, and adaptable. And I enjoy working with them.
Okay, okay — I can hear the orchestra starting to play me off, so let’s get to it. Here’s Lewis’s Log Buffer #100.
Log Buffer #99: a Carnival of the Vanities for DBAs
Welcome the the 99th edition of Log Buffer, the weekly review of database blogs.
Since PGCon recently happened right here in Ottawa, let’s start with some posts about it, and about PostgreSQL. Josh Berkus came to the conference with his Database Soup. It sounds like he enjoyed himself: “So, that’s pgCon. It was exciting and fun. All of you PG geeks who missed it should be kicking yourselves about now, and putting in budget requests for next year.” He has day one highlights; day two highlights, and also some photos from the conference.
On Tending the Garden, Selena Deckelmann (who knows a thing or two about Postgres conferences) has her PGCon review, with links to conference webpages.
Robert Treat of zillablog also has his take-aways. “The biggest thing to come out of this past week to me was recognition of the continued growth of the postgresql community. With a number of regional conferences springing up over the past year, I wondered if PGCon would be able to match the experience from last time, and was happy to see that it far exceeded it. . . . One thing I noted was that we have a very large presence of Postgres in Ottawa, I think larger than what we had at PGEast for the Baltimore/Washington Area.”
On Greg’s Postgres stuff, Greg Sabino Mullane has an item on verifying master-slave replication with check_postgres.pl, a montoring script for Nagios and other systems.
Hubert Lubaciewski of select * from depesz; looks at different approaches to counting the number of distinct elements, such as distinct sessions per day.
On An Expert’s Guide to Oracle Technology, Lewis Cunningham examines the recent news of the worlds largest database running on Postgres. How large? 2 Petabytes! “Let’s put that in perspective,” writes Lewis. “1 petabyte is 1,000,000,000,000 bytes. Yahoo has two of those. . . . [They use] this database to analyze the browsing habits of its half a billion monthly visitors. How would you like to tune those queries?” Lewis also notes that this is not the plain-vanilla PostgreSQL that you or I would download and run on our website box.
There are conferences on the horizon of the Oracle world too. Dan Norris reminds us that ODTUG is just around the corner. That’s the Oracle Developer Tools User Group’s Kaleidoscope 2008 event, taking place in mid-June in New Orleans.
Gareth Roberts of In Depth Apps announces the call-for-papers of the New Zealand Oracle Users Group’s (NZOUG) 2008 conference, coming in October.
In other Oracle matters — Chen Shapira, just a simple DBA on a complex production system, has some thoughts on cumulative distribution. “How do we calculate Cumulative Normal Distribution? This means calculating the probability that a random variable from a normal distribution, will end up equal to or less than X.”
Log Buffer #98: a Carnival of the Vanities for DBAs
The 98th edition of Log Buffer, the weekly review of database blogs, has been published on Jeff’s SQL Server Blog.
Log Buffer is a shared project of the DBA blogging community, so you’re welcome to edit and publish an edition yourself. LB’s 100th anniversary edition is still up-for-grabs (and there’s plenty of room besides that), so read the Log Buffer homepage and the guidelines, and then email me.
Here’s Jeff Smith’s Log Buffer #98.
Log Buffer #97: a Carnival of the Vanities for DBAs
The 97th edition of Log Buffer, the weekly review of database blogs, has been published on Brian “Krow” Aker’s Idle Thoughts.
We have Jeff Smith and Ward Pond standing by for two upcoming editions. And if you’d like to contribute, make yourself known in the DBA community-at-large (and have some fun in the process), you too can do Log Buffer! Read the homepage and send me, the Log Buffer coordinator, an email.
And now, Brian Aker’s Log Buffer #97.
Log Buffer #95: a Carnival of the Vanities for DBAs
The 95th edition of Log Buffer, the weekly review of database blogs, has been published by Mark Schoonover on his Mark’s IT Blog.
We can look forward to LB#98 Jeff Smith’s Jeff’s SQL Server Blog on May 23rd. There’s always plenty of room for more editors, so don’t waste another minute — send an email to me, the Log Buffer coordinator, and get started!
Without further ado, here is Mark Schoonover’s Log Buffer #95.
Log Buffer #94: a Carnival of the Vanities for DBAs
Log Buffer, the weekly review of database blogs, welcomes back for his record-breaking record-tying (Sheeri, are you reading?) third edition Ronald Bradford of Opinions, Expertise, Passion.
Why does Ronald write Log Buffer? Perhaps it’s because he knows that LB is and established and widely read feature, and hence likely to bring his own blog some new readers and improve its ranking. Or maybe he enjoys the fun and challenge of comprehending and presenting the entire DBA blog scene, not just the part that deals with his own favoured technologies. (Or maybe he just likes me? Ronald?)
Since Log Buffer is open to anyone, I encourage you also to join in. If you’d like to edit and publish an edition yourself, take a look at LB’s homepage, read the few guidelines, and then get in touch with me, the Log Buffer coordinator.
You can also contribute by emailing your favourite blog items to the editor.
And now, here’s Ronald Bradford’s Log Buffer #94.
Log Buffer #93: a Carnival of the Vanities for DBAs
Welcome to the 93th edition of Log Buffer, the weekly review of database blogs.
Conference season is upon us, so it’s been a busy week. There was the MySQL Conference & Expo, so let’s look at that.
Arjen Lentz posts about Sunday’s community dinner, including the arrival of an unexpected guest. Two photos: one of Pythian’s Paul Vallée getting some Sun; the second from the pre-conference dinner.
Zack Urlocker has a couple pieces with both photos and links to video of the keynote addresses from Marten Mickos, Jonathan Schwartz, and Rich Green. From Wednesday, and from Thursday.
Congratulations are due to Baron Schwartz, Diego Medina, and Sheeri Cabral. Baron reports from the conference that the three of them were awarded the 2008 MySQL Community Awards, and his piece makes for a very apt acceptance speech. Here’s Kaj Arnö’s more official post on the Community Awards.
Baron also has good summaries of the conference course: day one, and day two.
Elsewhere on the MySQL scene, much ado about the immediate roadmap for the DBMS, as introduced at the conference. Jeremy Cole got things going, writing, MySQL to launch new features only in MySQL Enterprise: “MySQL will start offering some features . . . only in MySQL Enterprise. This represents a substantive change to their development model ? previously they have been developing features in both MySQL Community and MySQL Enterprise. However, with a shift to offering some features only in MySQL Enterprise, this means a shift to development of those features occurring . . . only in MySQL Enterprise.” This post got a lot of comments, including from MySQL boss Marten Mickos.
Log Buffer #91: a Carnival of the Vanities for DBAs
Welcome to the 91st edition of Log Buffer, the weekly review of database blogs.
For a change, let’s begin with some PostgreSQL stuff. On Tending the Garden, Selena Deckelmann gives her retrospective thanks to those who attended and presented the PostgreSQL Conference East.
On Esoteric Curio, Theo Schlossnagle gives his thoughts on the keynote address by Joshua Drake, touching on the perennial versus, Postgres vs. MySQL.
Hey, there was a MySQL ambassador there, too — Baron Schwartz of xaprb. Here’s Baron’s recap of his experiences at the conference.
When pet projects bite back! reasserts that SQL is in fact a programming language. Sometimes one can forget that and need a little reminder. Or a not-so-little reminder, such as a three-pages-long query. The discussion ranges into questions of design, a matter that Baron Schwartz also pursues: he asks (on behalf of his wife), what is your favorite database design book? (I want to know too — um, for . . . a friend of mine.) Lots of good responses so far.
For huge queries to huge tables. On the MySQL performance blog, Aurimas Mikalauskas walks us through using MMM to ALTER huge tables. He writes, “When it comes to changes that really require table to be rebuilt - adding/dropping columns or indexes, changing data type, converting data to different character set - MySQL master-master replication especially accompanied by MMM can be very handy to do the changes with virtually no downtime.”
Log Buffer #90: a Carnival of the Vanities for DBAs
Welcome to the 90th edition of Log Buffer, the weekly review of database blogs.
First, SSQA.net’s SQL Master offers his walk-through of best practices for installing SQL Server 2005, with clustering as the destination.
If you read SQL Server blogs, you already know Adam Machanic. I’m very pleased to mention his first post for the Pythian Group blog, covering the basics of minimal logging and its enhancements in SQL Server 2008.
Also looking at Katmai was Bob Beauchemin, with his tip on accessing multiple servers with the SQL Server 2008 PowerShell provider, something right out in the open that nonetheless you might have missed.
Bob also figures out a little more about 2008’s new sparse columns and column_sets.
Joe Webb’s site mentions his appearance on Buck Woody’s Real World DBA podcast, where they tackle the question, does JOIN order matter?
On OraStory appears a very-commented post by Dominic Brooks, tantalizingly called, The dea(r)th of Oracle RDBMS and contracting?. From the piece: “I feel like the war has been lost and there are only a few pockets of resistance left now, resistance that will sooner or later be squashed. The database is under attack. . . . A newly created hierarchy have decreed that databases are indeed bad. . . . And I was speaking to a friend today at a previous employer, a major media / entertainment company. They are planning to abandon their pragmatic approach to Oracle and switch wholely [sic] to open source databases, ORM tools, and the like.”
And speaking of “Oracle versus X” (why doesn’t HTML have a <segue> tag?) — in last week’s LB#89, Shakir Sadikali criticized a post by Sean McCown’s Database Underground that compared Oracle and SQL Server to the latter’s advantage. Sean follows up the original piece, with this second item on Oracle’s community. He writes, “. . . one area I think Oracle has it over Microsoft is in its downloads. When I go to Oracle to download anything, all the downloads are clearly marked on a single page. Microsoft just isn’t like that. Sometimes even finding a service pack for SQL is like finding help for Oracle. . . . to those of you who said Oracle is easier to admin that SQL, you’re just crazy.”