Percona : MySQL open source fork with performance improvements
11
votes
2answers
3k views
How do I properly perform a MySQL bake-off?
I want to performance test (aka bake-off) MySQL server rpm against some other forks such as Percona server, MariaDB, and possibly some others. I'm hoping that by asking this question I can better ...
4
votes
2answers
1k views
Scaling Percona datacenters: setup and replication
Since our startup has taken off nicely we are now meeting with some of those issues that you always assumed would NEVER effect you.
We have already scaled alot of our application stack: we offloaded ...
3
votes
1answer
3k views
Fixing tables out of sync as reported by pt-table-checksum, pt-table-sync is not working
I have several tables being reported by pt-table-checksum with CRC_DIFF between my master and slave servers using the following commands:
$ pt-table-checksum h=master,u=user,p=password ...
4
votes
1answer
971 views
What is the difference between XtraBackup and rsync?
Yes, I'm going to run strace on them both... However, I would like to know ...
What is XtraBackup is doing over and above rsync -ac src dest ?
What's so special about XtraBbackup ?
How is XtraBackup ...
1
vote
1answer
472 views
Why default character_set_server is latin1?
I am using MySQL 5.5 and when I show variables about charset, I have
+--------------------------+----------------------------+
| Variable_name | Value |
...
6
votes
2answers
389 views
Investigate peak in MySQL throughput
Recently one of our servers has ran out of memory and crashed. After reviewing the munin graphs, it appears that the only metric (other than memory usage) that peaked just before the crash was the ...
3
votes
2answers
2k views
Percona vs MySQL
What is Percona?
How does it differ from MySQL?
When should we consider switching (or upgrading) from stock MySQL to Percona?
To add some specifics in our situation we almost exclusively use ...
2
votes
1answer
138 views
Does this make my XtraDB Cluster hang?
After seeing the following in the error log on the second node:
121003 7:16:06 [Note] WSREP: Member 0 (joiner) synced with group.
121003 7:16:06 [Note] WSREP: Shifting JOINED -> SYNCED (TO: 0)
...
