May 25, 2012

Post: Percona XtraBackup 1.6.4

MySQL and Percona Server versions. We now build against: MySQL 5.1.59, MySQL 5.5.17, Percona Server 5.1.59-13.0 and Percona Server 5.5…. of -1. Bug Fixed#884737 (Alexey Kopytov) The documentation for innobackupex (including –help) erroneously mentioned an –ibbackup-binary command line option when …

Post: MySQL 5.5.8 - in search of stability

…but we will see the effects anyway. The full command line to run the test is: tpcc_start localhost ….93 NOTPM. This is 1.4x better than we have with the stable line in MySQL 5.5.8. But, finally, … support of big log files (>4GB) to help increase throughput. Basically, by lowering innodb_max_dirty_…

Post: High-Performance Click Analysis with MySQL

… rip through the file and parse it 10k lines at a time, aggregating as it goes.  …What about partitioning in MySQL 5.1?  I know there are some cases when it can help a lot, and … parts of partitioning, such as maintenance and repair commands, that essentially negate the benefits of partitioning for …

Post: Can we improve MySQL variable handling ?

command line with –no-defaults –verbose –help options: pz@ubuntu:~$ /usr/sbin/mysqld –no-defaults –verbose –helpMySQL variables in automated way a lot more convenient would be extending INFORMATION_SCHEMA.GLOBAL_VARIABLES Currently as of MySQL 5.5

Post: Flexviews - part 3 - improving query performance using materialized views

command linelines) | +——————+ | 155186550 | +——————+ 1 row in set (0.64 sec) mysql> select sum(total_lines) from complete_example2 ; +——————+ | sum(total_lines) | +——————+ | 155186550 | +——————+ 1helps you understand how Flexviews can help

Post: High availability for MySQL on Amazon EC2 – Part 2 - Setting up the initial instances

mysql host would be much larger. Using another type is trivial. I will assume you are using the command line…the help identify them. To create a security simply run this command:…MySQL version in the Ubuntu repository by doing: root@hamysql:~# apt-get install mysql-server-5.1 The package install MySQL

Post: Talking MySQL to Sphinx

…(51 | 1023063 | | 6739359063 | 1 | 1024599 | | 6739305559 | 1 | 2558807 | | 6739336791 | 1 | 2558807 | | 6739300695 | 1 | 208215 | | 6739297111 | 1 | 2736471 | | 6739296855 | 1 | 2736471 | +————+——–+———-+ 10 rows in set (7.92 sec) MySQL mysqlcommand line language is very helpful

Comment: MySQL random freezes could be the query cache

…freezing issue as well on FreeBSD 7.1 with MySQL 5.1.32. Its a pretty high traffic …command line mysql client returns error 34, Can’t create a new thread Also issuing a /usr/local/etc/rc.d/mysql-server restart command… FreeBSD 7.0 and MySql 5.0 and never saw this issue. Any help would be GREATLY …

Post: How Percona does a MySQL Performance Audit

… KB physical id : 1 siblings : 4 core id …vmstat 5 5 iostat -dx 5 5MySQL version is, and I check (with the ‘file’ command…go through it line by line, like this: +———————————–+———————-+———————-+ | Variable_name | Value … can frequently help customers …

Post: SHOW INNODB STATUS walk through

MySQL Performance. To start with basics SHOW INNODB STATUS is command… of other things. In MySQL 5 number of Innodb performance …waited at ./../include/buf0buf.ic line 630 for 0.00 …For certain workloads it may help to decrease the time…queries inside InnoDB, 0 queries in queue 1 read views open inside …