Redis 2.8.10 has been released, and according to creator Salvatore Sanfilippo, you're going to want to upgrade immediately, especially if you're using the min-slaves-to-write option.
Apparently, slaves were registering the min-slaves-to-write option as a bug, leading to unprocessed master replication streams with no obvious errors or disconnections.
The release also includes a few other fixes, which Sanfilippo lists in his announcement:
- Faster reply to clients for LOADING / BUSY errors (a lot faster).
- Lua scripting engine speedup.
- Sentinel new events making it more clear for humans to understand what is happening.
As well as a number of minor changes, which you can find in the full changelog below the announcement.