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Salvatore Sanfilippo talks Redis design and internals (thechangelog.com)
54 points by netherland on Jan 17, 2011 | hide | past | favorite | 11 comments


Do you know the feeling of your registered voice sounding crap? Add to this your English skills sounding even worse ;)

Well talking with @pengwynn was great and I hope that English skills apart you will find the interview interesting. If I said stupid things, I'm here to reply to any question (more probably tomorrow morning as it's late here in Italy)!


Your English is perfectly understandable. Don't worry about it. ;-)


It does make me wonder about current audio language translators. I wonder how much progress people have made with those.


Agreed. Better than mine.


Too nice ;) Thanks everybody.


I understood you just fine. Good job!


Loved the interview, very interesting, perfectly clear. Helped me a lot to understand the internals. Specially interested about the replication explanation. Great work, Salvatore!


How can I scale redis Pub/Sub system when I need more messages/second?


Pub/Sub is receiver-intensive, not publish-intensive, so basically if you have many subscribers the best thing you can do is to setup a few slaves.

PUBLISH commands are propagated on slaves. So you can attach your subscribers in a random slave.

Another approach is, if you don't have any pattern matching subscriber, to shard based on the hash of the key.


cool :) great to hear some of your thoughts man!


listening and tweaking my notes for the redis workshop which is due friday :)




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