NoSQL Storage Systems Never Violate ACID. Never? Well, Hardly Ever

http://danweinreb.org/blog/nosql-storage-systems-never-violate-acid-never-well-hardly-ever

by l0stman • 16 years ago

3 3 16 years ago

willvarfar2• 16 years ago

this looks like a very shallow and weak defence of noSQL in reaction to recent attention to the fact that noSQL == noACID.

Lets see, from the article noSQL solutions are ACID if each transaction updates a single record, if you have sharding and no replication and if you have fsync turned on.

The default state of SQL servers - MySQL non-innodb aside - is reliable i.e. ACID. The default state of noSQL solutions is unreliable, and only Voldermort seems to go some way to addressing that.

Is voldermort the only reliable noSQL?

drewp• 16 years ago

ACID = "reliable"? You need to define that.

Also you casually mix in "default state", so you need to decide if you're going to include all the possible modes of the more flexible stores out there or if you want this to be a silly attack on default configs.

willvarfar2• 16 years ago

since you asked, http://en.wikipedia.org/wiki/ACID explains ACID is about - all about - reliability. It is scary if you're the author of the article and you don't grasp this.

NoSQL Storage Systems Never Violate ACID. Never? Well, Hardly Ever

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