Blog: Mikael Ronstrom

210 blogs updated: 42 min. ago
Scheduling challenges of checkpoints in NDB
The NDB data nodes are implemented using asynchronous programming. The model is quite simple. One can send asynchronous messages on two prio...
09-08-2018 18:48:36 Mikael Ronstrom MySQL
Optimising scan filter for checkpoints in NDB
When loading massive amounts of data into NDB when testing the new adaptive checkpoint speed I noted that checkpoints slowed down as the dat...
09-08-2018 11:48:41 Mikael Ronstrom MySQL
Analysis of restart improvements in MySQL Cluster 7.6.7
To test restart times I am using the DBT2 test suite that I developed based on DBT2 0.37 since 2006. The following test setup is used: DataM...
09-08-2018 04:55:50 Mikael Ronstrom MySQL
Loading data into TByte sized NDB data nodes
One of the main design goals with MySQL Cluster 7.6 was to support much larger data sets in each data node. The checkpoint algorithm makes i...
08-08-2018 22:02:44 Mikael Ronstrom MySQL
More automated control in MySQL Cluster 7.6.7
Apart from bug fixes the 7.6.7 version of MySQL Cluster also brings a major improvement of restart times through adaptively controlling chec...
08-08-2018 15:03:54 Mikael Ronstrom MySQL
Articles on setting up highly available DNS/DHCP servers using MySQL Cluster
I found this old article that shows how to setup highly available DNS/DHCP servers using MySQL Cluster. It uses 4 machines with 4 replicas, ...
06-07-2018 14:34:17 Mikael Ronstrom MySQL
Node restart improvements in MySQL Cluster 7.6
A simple test to see how much faster restarts are in 7.6 compared to 7.5 is to load a set of DBT2 warehouses and next perform a node restart...
13-06-2018 15:51:02 Mikael Ronstrom MySQL
Benchmark of new cloud feature in MySQL Cluster 7.6
In previous blogs we have shown how MySQL Cluster can use the Read Backup feature to improve performance when the MySQL Server and the NDB d...
12-06-2018 10:02:28 Mikael Ronstrom MySQL
Impact of sharding on query performance in MySQL Cluster
A new week of blogs about our development in MySQL Cluster 7.6. After working a long time on a set of new developments, there is a lot of th...
11-06-2018 12:02:02 Mikael Ronstrom MySQL
Benchmark Read Backup Feature of NDB in the Oracle Cloud
The previous blog demonstrated the improvements from using the Read Backup feature in NDB in a tightly connected on premise installation. No...
08-06-2018 10:11:53 Mikael Ronstrom MySQL

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