Ibdata1 on FromDual GmbH

UNDO logs in InnoDB system tablespace ibdata1

oli.sennhauser@fromdual.com (Oli Sennhauser) — Wed, 05 Dec 2018 21:55:36 +0000

We see sometimes at customers that they have very big InnoDB system tablespace files (ibdata1) although they have set innodb_file_per_table = 1.

How to recover deleted tablespace?

oli.sennhauser@fromdual.com (Oli Sennhauser) — Fri, 14 Nov 2014 22:56:17 +0000

Sometimes, MySQL tablespace file(s) might be deleted by mistake, e.g. delete the shared tablespace (ibdata1) or an individual tablespace (table_name.ibd).

Shrinking InnoDB system tablespace file ibdata1 PoC

oli.sennhauser@fromdual.com (Oli Sennhauser) — Sat, 08 Dec 2012 13:43:11 +0000

In this weeks MySQL workshop we were discussing, beside other things, about the innodb_file_per_table parameter and its advantages of enabling it. In addition there was a discussion if the InnoDB system tablespace file can be shrinked once it has been grown very large or not. We all know the answer: The InnoDB system tablespace file does never shrink again.

Recover lost .frm files for InnoDB tables

oli.sennhauser@fromdual.com (Oli Sennhauser) — Tue, 20 Dec 2011 22:51:03 +0000

Recently I found in a forum the following request for help: