October 20, 2014

xtrabackup-0.9.5rc

Dear Community, As of today release 0.9.5rc is available. In this release there are following changes: Changelog: Option –no-lock is added to innobackupex-1.5.1. Use it only while ALL your tables are InnoDB and you DO NOT CARE about binary log position of backup XtraBackup is ported for InnoDB Plugin 1.0.4. Barracuda file format as well […]

xtrabackup-0.9

Dear Community, The release 0.9 of the opensource backup tool for InnoDB and XtraDB is available for download. Changelog: tar4ibd could not treat over 8GB file, now max 64GB prepare-speed-hack is added Fixed bugs: Bug #386179: “InnoDB: Error: space id in fsp header 143088, but in the page header 0″ Bug #394374: “Can’t compile with […]

Investigating MySQL Replication Latency in Percona XtraDB Cluster

I was curious to check how Percona XtraDB Cluster behaves when it comes to MySQL replication latency — or better yet, call it data propagation latency. It was interesting to see whenever I can get stale data reads from other cluster nodes after write performed to some specific node. To test it I wrote quite a […]

Shard-Query EC2 images available

Infobright and InnoDB AMI images are now available There are now demonstration AMI images for Shard-Query. Each image comes pre-loaded with the data used in the previous Shard-Query blog post. The data in the each image is split into 20 “shards”. This blog post will refer to an EC2 instances as a node from here […]

Just how useful are binary logs for incremental backups?

We’ve written about replication slaves lagging behind masters before, but one of the other side effects of the binary log being serialized, is that it also limits the effectiveness of using it for incremental backup.  Let me make up some numbers for the purposes of this example: We have 2 Servers in a Master-Slave topology. […]