Tagged Questions
1
vote
1answer
159 views
MySQL 5.5 - determining correct write[read]_io_threads on high-end system?
Specifically dual-CPU 32 core - 128RAM - RAID 10 SSD . Ubuntu 64 server.
Heavy Innodb load at times - ~ 2000+ queries per sec. Heavy read and write.
Currently we are running on the default ...
1
vote
1answer
51 views
tuning feed item's table query with multiple condition
I have a query like this:
SELECT *
FROM `rss_item`
WHERE `feed_id` = 1 and `timestamp` < 1350698635
ORDER BY `rss_item`.`timestamp` ASC
MySQL: 5.1; table engine: innodb
Explain result:
...
0
votes
0answers
252 views
Oracle 10g - Sudden change in execution time for specific query
After the DBAs fiddled with some parameters in our Oracle 10g Production Environment, most queries became a little faster. But a single query (a quite complex one) became dramaticaly slower - it went ...
1
vote
1answer
475 views
InnoDB Performance Tuning
I'm new to database administration so please excuse any omissions of what would seem like basic info to provide for this problem.
I'm a RoR developer and our team is currently short a DBA, so we're ...
15
votes
3answers
16k views
Possible to make MySQL use more than one core?
I've been presented with some dedicated MySQL servers that never use more than a single core. I'm more developer then DBA for MySQL so need some help
Setup
The servers are quite hefty with an ...
