Before I start a story about the data recovery case I worked on yesterday, here’s a quick tip – having a database backup does not mean you can restore from it. Always verify your backup can be used to restore the database! If not automatically, do this manually, at least once a month. No, […]Read more
We have had been using Akismet as our primary antispam tool for quite a while.Â It works okay, but recently we have started to get the feeling we need a better solution. With Akismet were still burdened with a lot of manual moderation for false negatives and scanning detected spam for false positives (can’t […]Read more
This is part 3 of my Tyrant extra’s, part 1 focused on durability, part 2 focused on the perceived performance wall.
#3.Â Tokyo Cabinet Can have only a single writer thread, bottlenecking performance
When writing an application using Tokyo Cabinet only one connection can be opened as a â€œwriterâ€Â while the rest are readers.Â Tyrant allows […]
Continuing my look at Tokyo Tyrant/Cabinet and addressing some of the concerns I have seen people have brought up this is post #2.
#2.Â As your data grows doesÂ Tokyo Cabinet slow down?
Yes your performance can degrade. One obvious performance decrease with a larger datasetÂ is you start to increase the likelihood that your data […]
You know how in addition to the main movie you have extras on the DVD. Extra commentary, bloopers, extra scenes, etc? Well welcome the Tyrant extras. With my previous blog posts I was trying to set-up a case for looking at NOSQL tools, and not meant to be a decision making tool. Each solution […]Read more
We often encounter customers who have partitioned their applications among a number of databases within the same instance of MySQL (think application service providers who have a separate database per customer organization … or wordpress-mu type of apps). For example, take the following single MySQL instance with multiple (identical) databases:
Since DTrace was released for Solaris I am missing it on Linux systems… It can’t be included in Linux by the same reason why ZFS can’t be – it’s licensing issue. Both ZFS and DTrace are under CDDL, which is incompatible with GPL. So you can see DTrace and ZFS on Solaris, FreeBSD, MacOS, […]Read more