Vmware on FromDual GmbH

Galera Cluster last inactive check and VMware snapshots

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 11 Apr 2015 11:46:36 +0000

From time to time we see at Galera Cluster customer engagements the following, for me scary, warning in the MySQL error log:

Be cautious when using Virtualized System with your Database

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 08 Jun 2011 15:01:29 +0000

A customer rose a support case with a problem on his Master-Master set-up. The 2^nd Master claims to have a problem:

Which table is hit by an InnoDB page corruption?

oli.sennhauser@fromdual.com (Oli Sennhauser) — Mon, 02 Aug 2010 17:49:38 +0000

InnoDB is known to have crash-recovery capabilities and thus is called a crash safe storage engine (in contrary to MyISAM). Nevertheless under certain circumstances it seems like InnoDB pages can get corrupt during a crash and then a manual crash-recovery is needed.

MySQL on VMware Workstation/DRBD vs. VMWare ESX Server/SAN

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 22 Jan 2010 17:05:00 +0000

Or an active-active failover cluster à la VMware.

Today I have learned about a totally crazy/cool looking architecture where the expensive VMware ESX server was replace by a free/cheap VMware Workstation version in combination with DRBD.