May 26, 2012

Post: Shard-Query EC2 images available

…. Shard-Query is very flexible in it’s configuration, so you can use this sample database to spread processing over up to 20 nodes. The Infobright Community Edition (ICE) images are available in 32 and… engine makes a big difference In general, a column store performs about 8x-10x better than a row store for queries which access…

Post: High-Performance Click Analysis with MySQL

… to just store everything.” If you can’t decide yet, then don’t store everything in the database. Instead, store the source data in some fashion that you can reload later, such as flat files, and build support in…, so I call it dog-earing the table (somehow the image of putting columns next to each other makes me think…

Post: Watch out for your CRON jobs

… messages when you restart database server etc but information about cron errors should find you. Store Historical Run Times In a lot of… time gradually until it could not complete in time. Create the table in the database and store information about how long cron took to… can store some other metrics as well. For example you can store something like script took 40 seconds and processed 4000 images. In this…

Post: State of MySQL Market and will Replication live ?

… disruption and commoditisation of Database Market, leaving this for Market talks, my interest is market of Web Applications in general. Clearly web… not speaking about just database here, but rather whole stack to allow to build scalable web applications in an easy way. Customers… on scalable blog streaming to make it possible store large blobs such as images in the database efficiently. The other Wave is appliances – you…

Post: Long PRIMARY KEY for Innodb tables

… the task to store meta data about thumbnails for images retrieved from various web sites in the Internet. Thumbnails themselves were stored on the… data such as original image sizes, file size as well as thumbnail location on the disk were stored in the database: CREATE TABLE `imagecache…

Post: How InnoDB handles REDO logging

database. Instead of logging whole pages (Value / Physical logging) where both the before and after image… record of the state of the data in the database in (D)urable memory and that each … Fortune…)’> The log header stores information about the last checkpoint. The log is stored as records rather…

Post: Is VoltDB really as scalable as they claim?

in the cluster; high availability is ensured by keeping more copies of each partition. You query VoltDB with stored… easy to miss by looking at separate images anyway. The k-factor of 0 achieves …, active-active master, fully ACID, always-consistent database to a 40-server cluster is impressive. Yes…

Post: PROCEDURE ANALYSE

…: NULL Optimal_fieldtype: ENUM(‘blog’,'contact’,'customer’,’image‘,’lab_project’,'news’,'page’,'percona_faq’,'presentation…SMALLINT or MEDIUMINT but on the small database like this it does not really yields…really helpful in more cases than ENUM data type – maximum length of data actually stored often…

Post: BoardReader - Forum Search Engine

…work on crawler in this project only on database Backend and full text search engine implementation. In this part…and servers. To target this problem we also store inbound links clustered by second level domain …normal links as well as domains which have images on them referenced. There are still a …