May 22, 2012

Post: Benchmarking single-row insert performance on Amazon EC2

… been working for a customer benchmarking insert performance on Amazon EC2, and I have some interesting results that I wanted to share…. While with the table having no secondary indexes, you can see that the insert rate is pretty much constant remaining between ~25k to ~26k… ahead to choose a table structure with no secondary indexes. Other important things to consider when you are concerned with write performance is using partitioning to

Comment: Announcement of Percona XtraDB Cluster 5.5.23

Gilles, you can filter what tables to replicate using regular replication filter i.e. replicate_*, for it does not affect a node propagation. The new node still will copy all databases and instances.

Post: Training in London next week

I’m going to deliver MySQL Training next week (May 21-24) in London. … US. There are still some places left if you want to sign up. You will also get a signed copy of High Performance…

Comment: Benchmarking single-row insert performance on Amazon EC2

can explain the performance you are seeing. But first I’d like to note that this experiment isn’twith this partitioning, however since you‘ll have to look in each of the ten partitions to query one of the indexes. If you…%93-the-wait-is-over/) on a newer version of iiBench showed that with 16GB of …

Comment: Percona Replication Manager, a solution for MySQL high availability with replication using Pacemaker

…boxs with MySQL 5.5 (Ubuntu Server 12.04 LTS) the pacemaker mysql plugin (ocf:heartbeat:mysql) doesn’t work, … “CHANGE MASTER TO MASTER_HOST=” ” will make an error and stop this script. As I can see, Yves … a completely output. Maybe not initial, but if you use the server instance one time as as …

Comment: How much memory Innodb locks really take ?

… from VB6 to PhP/MySQL/Apache/InnoDB. Do you think you can show a program where row-locks are used by one user to lock…

Comment: Testing Fusion-io ioDrive - now with driver 3.1

… posting the benchmarks. They are very informative. One question: when you configure MySQL, what portion of it resides on the Fusion… card? Do you just have your datadir on there? Or is it more complex than that? I’m new to Fusion-IO and I am going to do some testing with a couple of MySQL servers with ioDrive2 cards (two in each) with

Comment: Benchmarking single-row insert performance on Amazon EC2

Aaron, No particular reasons, it doesn’t matter if you have 4 1G or 2 2GB log files, as they are all concatenated together by InnoDB and written to in a circular fashion.

Comment: Benchmarking single-row insert performance on Amazon EC2

Justin, I would be doing another benchmark and use ‘innodb_ibuf_accel_rate’ together with tuning other IO related parameters that I can tune to good affect, and I will post my results.

Comment: Benchmarking single-row insert performance on Amazon EC2

… that stringent and I can afford to loose 1 second worth of data, hence I did not test with innodb_flush_log_at…_commit=1. I would also not recommend running on EBS with innodb_flush_log_at_trx_commit=1, because IO times…