Are you a fan of Percona Server? You can show your support by casting a vote for Percona Server in the SQL Technologies Top Innovator 2013 category of the DeveloperWeek Awards. You can vote through January 7, and voting is easy. Just login, select Percona from the alphabetical list, and cast your vote Why bother […]
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Well, it happened again… Another lengthy EBS outage in the US-East region impacted several sites across the net. While failures like this are rare, they can be quite costly and translate into headaches for the operations team when impact production systems for any length of time. At Percona, we routinely help clients architect and deploy […]
It’s Friday again (already?) and as usual, we have a free ticket for Percona Live London. This time Tokutek is doing the honors of running the contest and selecting the winner. Instructions for entering the contest are on their blog, at the top of my recent guest post about covering indexes.
In a month, the 24th of October, Johan Andersson (severalnines.com) and I will be giving a full day tutorial on NDB cluster which will include both presentations and hands-on. Be ready for a fast ramp-up on NDB! Among items covered: – Achitecture – Installation – Loading data – Administration (common procedures) – Node recovery – […]
Percona, and Yasufumi Kinoshita who works for Percona, received two awards from the O’Reilly MySQL Conference co-chairs on behalf of the committee that voted on the nominees. The awards were: to Yasufumi as O’Reilly MySQL Community Contributor of the Year 2011 for InnoDB performance improvements, and to XtraBackup as O’Reilly MySQL Application of the Year […]
So you’re running MySQL With innodb_file_per_table option but your ibdata1 file which holds main (or system) tablespace have grown dramatically from its starting 10MB size. What could be the reason of this growth and what you can do about it ? There are few things which are always stored in main tablespace – these are […]
I did some drawing exercise and put XtraDB / InnoDB internals in Visio diagram: The XtraDB differences and main parameters are marked out. PDF version is there https://www.percona.com/docs/wiki/percona-xtradb:internals:start.
Sometimes due to programming error or due to very complex query you can get your PHP script running too long, well after user stopped waiting for the page to render and went browsing other sites. Looking at Server-Status I’ve seen scripts executing for hours sometimes which is obviously the problem – they take Apache Slot, […]
Returning to my post about memory consumption with Stored Function at this moment I want to annul that post. Trying to repeat described behavoir I cannot repeat that again and probably there was something wrong with the whole box, not MySQL. I apologize if it was confusing. Although I am almost sure this topic will […]
Quite often, especially for benchmarks, I am trying to limit available memory for a database server (usually for MySQL, but recently for MongoDB also). This is usually needed to test database performance in scenarios with different memory limits. I have physical servers with the usually high amount of memory (128GB or more), but I am […]