jonasoreland.blogspot.com
jonas blog: new features in MySQL Cluster 7.2.1
http://jonasoreland.blogspot.com/2011/10/new-features-in-mysql-cluster-721.html
Stuff related to mysql.and maybe other things. Monday, October 10, 2011. New features in MySQL Cluster 7.2.1. AQL (aka push down join). Further improvements and refinements compared to 7.2.0 from April. A long over due feature, that aims to reduce(minimize) need of manual query tuning that previously has been essential for efficient SQL usage with ndb. Various internal limits has been increased. Max row-size now 14k (previously 8k). Max no of columns in table now 512 (previously 128). The histogram can t...
jonasoreland.blogspot.com
jonas blog: Brewing in MySQL Cluster 7.2.x
http://jonasoreland.blogspot.com/2011/10/brewing-for-mysql-cluster-72x.html
Stuff related to mysql.and maybe other things. Thursday, October 13, 2011. Brewing in MySQL Cluster 7.2.x. Admittedly MySQL Cluster have some way to go before monitoring becomes best in class. But, we are progressing! In 71 we introduced NDBINFO, which is an infrastructure that enables presenting information from within the cluster in SQL format. And here are a 4 new tables that are currently brewing. These two tables show currently ongoing transactions resp. currently ongoing operations. Be that (for a ...
jonasoreland.blogspot.com
jonas blog: May 2010
http://jonasoreland.blogspot.com/2010_05_01_archive.html
Stuff related to mysql.and maybe other things. Thursday, May 20, 2010. Distributed pushed down joins - node-failure handling done. Node-failure handling was as expected lots of small changes to various pieces of the code. Some non compatible protocol changes performed (nice not to have any existing GA release to care about :). Also when doing this, I re-implemented entire "abort of join"-handling. It should now also be capable of handling aborting more complex joins. And as always please provide feedback.
jonasoreland.blogspot.com
jonas blog: international man of mystery
http://jonasoreland.blogspot.com/2012/02/austin-powers.html
Stuff related to mysql.and maybe other things. Wednesday, February 15, 2012. International man of mystery. I can't help to think of austin powers when seeing one. Subscribe to: Post Comments (Atom). International man of mystery. View my complete profile. Some thoughts on recent events. It was suggested by Monty that the posts I've made about MariaDB are for publicity. This simply isn't true. I would have much preferred a different outcome. Monash Research Integrated Feed. Benchmarking the Performance Imp...
jonasoreland.blogspot.com
jonas blog: April 2010
http://jonasoreland.blogspot.com/2010_04_01_archive.html
Stuff related to mysql.and maybe other things. Saturday, April 24, 2010. Distributed push down joins - first "to many" join. Just managed to run the first "to-many" join inside the data-nodes. The query correspondce to. SELECT t1.*, t2.*. LEFT OUTER JOIN T1 as t2 on t2.pk = t1.b. The code inside the data-nodes is general.but incomplete (data-node later crashed). There is no ndbapi and no SQL,the program testing is a hard-coded c-program sending messages using the ndb-cluster wire-protocol. H'000f0002 H'0...
jonasoreland.blogspot.com
jonas blog: December 2013
http://jonasoreland.blogspot.com/2013_12_01_archive.html
Stuff related to mysql.and maybe other things. Thursday, December 19, 2013. Pfs lock.h and "atomics". That tries to address the inefficiencies described in http:/ kristiannielsen.livejournal.com/17598.html. Subscribe to: Posts (Atom). Pfs lock.h and atomics. View my complete profile. Some thoughts on recent events. It was suggested by Monty that the posts I've made about MariaDB are for publicity. This simply isn't true. I would have much preferred a different outcome. Monash Research Integrated Feed.
johanandersson.blogspot.com
Johan Andersson's Cluster and HA Blog: March 2011
http://johanandersson.blogspot.com/2011_03_01_archive.html
Johan Andersson's Cluster and HA Blog. Stuff mainly about MySQL Cluster. Johan works as a Consultant for Severalnines, a company focused on building fast, scalable, and highly available solutions. Prior to Severalnines, Johan was working at Ericsson/MySQL/Sun/Oracle and was the Principal Consultant and lead of the Cluster consulting group. Wednesday, March 23, 2011. Users Conference 2011 - Cluster Tutorial. Posted by Johan Andersson. Subscribe to: Posts (Atom). Users Conference 2011 - Cluster Tutorial.
johanandersson.blogspot.com
Johan Andersson's Cluster and HA Blog: May 2012
http://johanandersson.blogspot.com/2012_05_01_archive.html
Johan Andersson's Cluster and HA Blog. Stuff mainly about MySQL Cluster. Johan works as a Consultant for Severalnines, a company focused on building fast, scalable, and highly available solutions. Prior to Severalnines, Johan was working at Ericsson/MySQL/Sun/Oracle and was the Principal Consultant and lead of the Cluster consulting group. Friday, May 11, 2012. MySQL Cluster: mysqld Sort aborted and error 4006. A client had a problem this morning with queries being aborted with the error message:. I susp...
johanandersson.blogspot.com
Johan Andersson's Cluster and HA Blog: December 2011
http://johanandersson.blogspot.com/2011_12_01_archive.html
Johan Andersson's Cluster and HA Blog. Stuff mainly about MySQL Cluster. Johan works as a Consultant for Severalnines, a company focused on building fast, scalable, and highly available solutions. Prior to Severalnines, Johan was working at Ericsson/MySQL/Sun/Oracle and was the Principal Consultant and lead of the Cluster consulting group. Thursday, December 15, 2011. Walking on Cloud 9. As the saying goes, we at Severalnines. Have been walking on several clouds this year, 9 to be precise! Enables custom...
johanandersson.blogspot.com
Johan Andersson's Cluster and HA Blog: April 2011
http://johanandersson.blogspot.com/2011_04_01_archive.html
Johan Andersson's Cluster and HA Blog. Stuff mainly about MySQL Cluster. Johan works as a Consultant for Severalnines, a company focused on building fast, scalable, and highly available solutions. Prior to Severalnines, Johan was working at Ericsson/MySQL/Sun/Oracle and was the Principal Consultant and lead of the Cluster consulting group. Wednesday, April 13, 2011. Getting started with Cluster/J - index search and table scans. This post follows the previous post. The complete code is here. QueryDomainTy...
