Salvatore Sanfilippo about why Redis 2.2.11 is a recommended upgrade:
[…] since Redis 2.2.7 we introduced a new kind of dictionary (hash table) iterator in order to reduce copy-on-write while a child is saving. I severely underestimated the complexity of porting all the code to the new iterator without bugs, so Redis experienced a number of bugs starting from 2.2.7 due to misuses of the new iterator API in different spots of the code.
The latest bug I found of this kind, hopefully the last, is particularly critical as it is in the persistence code.
This blog is called myNoSQL and it is written by me, Alex Popescu, a software architect with a passion for open source and communities.
It records my readings, learnings, and opinions on NoSQL databases, polyglot persistence, and distributed systems -- subjects that I'm passionate about.
The opinions expressed here are my own, and no other party necessarily agrees with them.
If you feel I'm biased, I probably am.