…: Multi-Master replication Create 3 nodes XtraDB Cluster in 3 minutes Benchmarking Galera replication overhead Percona Server 5.5.15 + Galera 21.1-beta2 State of the art: Galera – synchronous replication for InnoDB Happy…
Post: Announcing Percona XtraBackup 2.0.0 GA
April 4, 2012 By 11 Comments
….6: Percona XtraBackup can now save Galera replication information while performing a backup when given the –galera-info option to innobackupex. XtraBackup now…
Comment: Percona XtraDB Cluster Feature 2: Multi-Master replication
April 2, 2012 By 16 Comments
… what have you compared? Using Galera one approach is to compare with semisync replication. Even if Galera offers much more than semisync have a look at http://linsenraum.de/erkules/2012/03/galera-als… is written in german but the graphs count. You see galera faster than MySQL 5.5.21 semisync (blue line). MySQL…
Comment: Percona XtraDB Cluster Feature 2: Multi-Master replication
April 1, 2012 By 16 Comments
… install mysql-server-wsrep-5.5.20-23.4 with galera-23.2.0. When starting the second node and higher… be unavailable ( The logs are bellow). Other then that, the replication works fine. We are concern of the possibility that incremental… 14:14:26 ubuntu-server-129 mysqld: #011 at galera/src/replicator_str.cpp:prepare_for_IST():429. IST will be unavailable…
Post: Percona XtraDB Cluster Events
February 24, 2012 By 6 Comments
…, you may attend webinar. Tutorial on PL MySQL Conference Galera Synchronous Multi-Master Replication for MySQL. As I expect, the whole Codership… – this is a good chance to meet with developers of Galera. My talk on PL MySQL Conference Percona XtraDB Cluster: New…
Comment: Percona XtraDB Cluster 5.5.20 - Beta release
February 25, 2012 By 10 Comments
I think the optimizer improvements in 5.6 are quite nice with or without this new replication technology. But I agree, 5.5 + Galera alone should be something to adopt, no need to wait for 5.6.
Comment: Percona XtraDB Cluster Events
February 24, 2012 By 6 Comments
arun, The synchronous commit is described there http://www.mysqlperformanceblog.com/2012/01/19/percona-xtradb-cluster-feature-2-multi-master-replication/ This page describes how you can monitor the sate of the node: http://www.codership.com/wiki/doku.php?id=galera_status_0.8
Post: Benchmarking Galera replication overhead
October 13, 2011 By 12 Comments
… course you may expect performance overhead, as in case with Galera replication we add some network roundtrip and certification process. How big… regular MySQL replication was behind of master by 1000 sec. You can calculate how many transactions slave is missing. For Galera replication this is NOT a problem. 4. Now it is interesting how Semi-Sync replication will do under this…
Post: Percona Server 5.1 with Galera replication
July 14, 2011 By 2 Comments
As you may know I closely follow Galera replication development, and right now I am evaluating how it performs … code https://code.launchpad.net/~vadim-tk/percona-server/percona-galera-5.1.57, but it brings couple good things: It… evaluation, we are going to provide Percona Server binaries with Galera replication module. Follow @VadimTk
Post: Product to try: MySQL/MariaDB-Galera 0.8
June 13, 2011 By 34 Comments
I wrote about Galera about 1.5 years ago: State of the art: Galera – synchronous replication for InnoDB. It was about the 0.7 release, which was more like a proof-of-concept release (though Galera… a helpful Wiki page with a bunch of information about Galera replication.
