Open Source Database Magazine - Issue One Released
I just uploaded the pdf of the summer issue of Open Source Database Magazine. Included in this issue: * A great article on the new features of Postgresql 8.4 by Robert Treat * Part one of a two part article on Perconas new XtraBackup backup program Also the news, the book shelf and Peter Brawleys Coding Corner. Downloads are available at http://www.osdbzine.net. thanks, Keith Murphy Editor Open Source Database Magazine http://www.osdbzine.net -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: What OS is the best platform for MySQL ?
There are merits to most of the common operating systems. In some ways each of them perform better at various functions. The question becomes which are you most comfortable and familiar with? That way you can work most effectively with the operating system to fulfill the potential of your databases. If you aren't comfortable with any in particular, I would recommend you learn your way around a Linux distribution. Again, not because it is better than any other in particular, but because it is BY FAR the most commonly deployed operating system running MySQL. It isn't even close in terms of percentages. Behind it are Solaris and Windows. The most support on the web is available for Linux simply because more people work on it. But, if you are a Solaris, FreeBSD or Windows guru by all means as a friend of mine says.. party on (on those platforms..) Hope that helps. Keith Ken Menzel wrote: Dan Nelson wrote: In the last episode (Jul 06), Blog Tieng Viet said: I have been using MySQL on FreeBSD for 3 years and encounterd a lot of problems related to thread management. And 1 year ago, I found that my FreeBSD box does not go well with any MySQL revision after 5.1.17-beta, because the MySQL thread does not end although complied with LINUX_THREADS. Try building without LINUX_THREADS; that option shouldn't really be used with FreeBSD 6 or newer. Also This article may help if you have not yet abandoned Freebsd. It shows how freebsd can outperform Linux in some cases. Do we really need to bash OS's for MySQL. Rather than questioning what OS is best for MySQL we should ask how we can optimize MySQL for each OS. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: Client deleted database, semi high priority master slave question
Hope the client learned the lesson about backups. it's a hard one to learn sometimes. If the binary logs on the slave were enabled when the table was populated it should be possible to restore the table from the binary logs. If not, and logging was turned on after the table was populated than you are out of luck. Keith A client deleted their database and did not have a slave in place for backup. No scheduled dumps either. However, I have set up a slave to the master for one table. These tables hold DNS data for database driven DNS server features. The master table is empty, the slave rightly saw the deletes and carried them out. But I believe the replication logs on the slave, and also perhaps on the master should still be there. I'm not clear on how large these get, if they roll/truncate, etc. Is there any way to restore the master up to the point the data was deleted? I can then set the slave to resync and they should be back where the left off. There are a lot if records, not a lot of data since DNS data is so small. If I could restore the master It would prove quite helpful. Currently, all servers are down since DNS is not working, as a result of DNS being backed by MySql via DLZ/named. Thanks for any suggestions. -- Scott Iphone says hello. -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=bmur...@paragon-cs.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Open Source Database Magazine
hello everyone, Many of you know I have been the editor of MySQL Magazine for the last two years. Beginning with the summer issue I will be making some pretty major changes. The magazine is being renamed Open Source Database Magazine and I am going to be attempting to steer the subject matter to include any open source db. The details are here: http://www.paragon-cs.com/wordpress/2009/06/16/mysql-magazine-is-dead-long-live-open-source-database-magazine/ This does not mean that MySQL will be forgotten. Quite the opposite, I expect that there will be more articles about MySQL Server than any other database if for no other reason than there are more installations of MySQL than any other OS db. So step up to the plate! Send me a proposal for an article for the next issue which will come out in mid-July. Looking forward to hearing from you. thanks, Keith -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Re: How much memory can mysql 5.1 take advantage of?
I have seen testing of servers up to 128 GB of RAM. I wish I could say I was the one doing the test..however I use systems on a regular basis with up to 32 GB. Does it scale perfectly? No. Is it better than it was just a year ago even? Definitely. Hope that helps. Keith Murphy Didn't want this to go unanswered, although I don't have any great info for you. As long as you're running a 64-bit OS and a 64-bit version of MySQL, there's no technical reason it would be limited to less than the addressable space (that I know of). The main gain would be the ability to set larger buffers and handle more connections simultaneously. Of course, this is assuming your queries and schema are good and you don't suffer from excessive locking problems. That is to say... yes, it'll work, and yes, as far as I know MySQL will be able to allocate as much RAM as you can stuff in the box. Whether it can use it *effectively* is something I don't have any experience with beyond ~8GB. I suspect it would work just fine, though. Jake On Tue, Jan 20, 2009 at 12:08 PM, webtek2001-my...@yahoo.com wrote: While specing out a new server, I was wondering if there is any limit to how much memory can be allocated to mysql 5.1. If a server has 16GB of ram, can mysql take advantage of that much ram (minus a reserved amount for the OS obviously)? Is there any limit such as those imposed by 32-bit processors? Thanks! http://www.retailretreat.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/mysql?unsub=bmur...@paragon-cs.com -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/mysql?unsub=arch...@jab.org
Call for Articles for Winter Issue of MySQL Magazine
Its that time again. Time for fame and fortune! Sorry, as usual there is no fortune, but the good news is that our readership continues to grow so author fame is imminent. We are planning the winter issue of MySQL Magazine (http://www.mysqlzine.net). With the new GA release of MySQL server 5.1 last month there is certainly plenty to talk about! Draft articles will need to be in by the 10th of January so you have a month to get things ready. I need to hear about possible articles by the 15th of this month. I can be reached at bmurphy AT paragon-cs.com with your ideas. I want to mention that in the past we have used blog postings (with author permission and full credit of course). If you have blogged something recently that you feel is worthy of publishing in the magazine send me the link and I will take a look. Never heard of MySQL Magazine? It is a digital magazine designed for both database administrators and developers of the MySQL database server. All six back issues are available for free download from the website. Thanks, Keith Murphy - editor MySQL Magazine http://www.mysqlzine.net -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
MySQL Magazine Fall Issue -- Call for Articles
Hey everyone, it is that time again. The next issue of the magazine should be released on October the 15th. Its time to start sending in those ideas for articles. Articles have to be done by the end of this month so dont delay. Remember, you too can become rich and famous by writing for MySQL Magazine!! Just send me your idea for an article to bmurphy AT paragon-cs.com. For those who dont know, MySQL Magazine is a quarterly publication by the community - for the community that is free and available for download from http://www.mysqlzine.net. Looking forward to hearing from everyone!! Keith Murphy Editor, MySQL Magazine http://www.mysqlzine.net -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
Re: what is a schema? what is a database?
Yes, you are exactly right. The schema is the structure of the database. Keith I've been referencing a variety of sources, including wikipedia. What I know about a schema is that in SQLite the .schema command will show the the SQL structure of that databases tables, which would be analogous to DESCRIBE foo in MySQL (with the difference that SQLite shows all tables in one go). The schema is the structure of the database? I'm trying to understand what the wikipedia article is driving at. I would assume that only tables which are related go in the same database? That would my instinct, at least. Tables which are unrelated going into a different database. The quote from wikipedia: The problem that arises is that former MySQL users will mistakenly create multiple databases for one project. In this context MySQL databases are analogous in function to Postgres-schemas, insomuch as Postgres lacks off- the-shelf cross-database functionality that MySQL has. Conversely, Postgres has rightfully applied more of the specification, in a sane- bottom-up approach, implementing cross-table, cross-schema, and then left room for future cross-database functionality. http://en.wikipedia.org/wiki/ Comparison_of_relational_database_management_systems#Databases_vs_Schemas_.28terminology.29 thanks, Thufir -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED] -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe:http://lists.mysql.com/[EMAIL PROTECTED]
