May 25, 2012

Post: MySQL opening .frm even when table is in table definition cache

Storage Engine API is called. But back to what the above strace shows. In MySQL 5.5 you can find in sql/datadict.cc a… this is used is that in the DROP TABLE code path, MySQL uses this magic byte to work out which Storage Engine to ask to drop the table. The main consequence of this bit of code is that MySQL

Post: Falcon Storage Engine Design Review

find it interesting. In many cases what I find good or bad would base of my MySQL use…one is probably a bit…table (or data which is locally stored but in random order). In my opinion this however should have been implemented outside of MySQL Storage Engineout where which are optimized for Innodb which

Post: Shard-Query EC2 images available

Storage engine makes a big difference In general, a column store performs about 8x-10x better than a row store for queries which access a

Post: INFORMATION_SCHEMA tables in the InnoDB pluggable storage engine

storage engine, which Innobase released at the MySQL … +—————————————-+ The _CMP tables show statistics about compression; they contain a lot of usefultables are fully documented in the InnoDB plugin manual, along with extensive examples of how to use them to find out

Post: How to Monitor MySQL with Percona's Nagios Plugins

a database isn’t owned by MySQL, you won’t have any problems until you try to create or drop a tablefind evidence of problems in the server as well as the storage engine. For example, auses a threshold for which

Post: MySQL Performance Engineer opening

findings on MySQL Performance Blog. However recently we got too busy with serving out customers and the backlog of things to take afind the truth source code is your best friend. One should have good MySQL knowledge including main storage engines, and best have experience usingwhich

Post: Multiple purge threads in Percona Server 5.1.56 and MySQL 5.6.2

storage engine, is to get rid of–purge–the old versions of the records as they become obsolete. In MySQLfind out what benefits, if any, do the additional purge threads bring. The test workload makes atable, and the InnoDB team advises using

Post: MySQL Users Conference - Innodb

Storage Engine developers showcase as one of keynotes. Today let me start with most popular transactional storage engine for MySQL – Innodb. Innodb Storage Engine was covered in a

Post: MySQL Server Memory Usage

which is large enough to contain largest record in the given table which is held until table is closed. Federated Storage Enginewhich are not tuned as buffers. Watch for these especially now with many storage engines being released for MySQLfind out

Post: MySQL Error Message Nonsenses

storage engine interface Sun/MySQL spends some time to make things consistent. There should be general high level error codes which can be portable across storage engines – for example something with meaning of “Storage engine is out of resources” together with ability for storage engine