by David Ducos | Jun 19, 2018 | Insight for DBAs, MySQL
Since MySQL 5.7.5, we have been able to resize dynamically the InnoDB Buffer Pool. This new feature also introduced a new variable — innodb_buffer_pool_chunk_size — which defines the chunk size by which the buffer pool is enlarged or reduced. This variable is not...
by Fernando Laudares Camargos | Feb 26, 2015 | Insight for DBAs, MySQL
If you use Percona Server 5.5 and you have configured it to use multiple buffer pool instances than sooner or later you’ll see the following lines on the server’s error log and chances are you’ll be worried about them: Shell InnoDB: detected cycle in...
by Bill Karwin | Dec 29, 2014 | Insight for DBAs, MySQL, Percona Software
Some time ago, Peter Zaitsev posted a blog titled “How well does your table fits in innodb buffer pool?” He used some special INFORMATION_SCHEMA tables developed for Percona Server 5.1 to report how much of each InnoDB table and index resides in your...
by Peter Zaitsev | Dec 24, 2014 | Insight for DBAs, MySQL
It has been a while since I have looked at InnoDB crash recovery. A lot has change in the last few years – we have serious crash recovery performance improvements in MySQL 5.5 and MySQL 5.6, we have solid state drives raising as typical high performance IO...
by Peter Zaitsev | Dec 17, 2014 | Insight for DBAs, MySQL
I believe InnoDB storage engine architecture is great for a lot of online workloads, however, there are no silver bullets in technology and all design choices have their trade offs. In this blog post I’m going to talk about one important InnoDB limitation that...