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I stayed away from Rethink in the past few years due to its uncertain future. Now I'm seriously interested. Looking forward to the next chapter of RethinkDB.
I wonder if they could have closed more deals if they'd promised to do something like this. Then again, maybe the board would have balked at that as a sign of no confidence.
This kind of stance can be useful to a community, though, that wants to ensure future proprietary development remains possible (kind of strange to want but it can make sense). I recall when Trolltech did this with Qt. If they went out of business or there were a change of control, Qt would switch from GPL to BSD licensed.
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Only RethinkDB gets you a) working changefeeds, where you can receive real-time changefeed updates to your queries, b) a well-implemented and Jepsen-proven distributed database. As far as I know, there is no other solution which gets both things right. I use it in PartsBox ( https://partsbox.io/ ), a solution for keeping track of electronic components. I am surprised more people aren't interested in changefeeds — the…
Well a) is provided by Mongo and is literally the reason why Meteor can do exactly what you described: multi-user webapps which update in real-time.
Leaving aside reliability and ease of use, let's focus on correctness. RethinkDB lets me query a database, get initial data, and then get all the subsequent changes to that data. Notice there is no race condition there.
You can use this to implement systems where when a user logs in, gets the initial data loaded, and then subsequent changes are sent as they happen. Even if the same data is modified by someone else during this time (e.g. during the initial load), things will be processed correctly.
Comparing this to attaching a processor to a feed of all operations in the database doesn't make a lot of sense, because the oplog doesn't provide the same functionality.
ironic that this will be the move that actually propels rethinkdb... it's my feeling that software licensing day's are over for the little guys. If you are Oracle or Microsoft and have that brand recognition great. Coupled with commoditization of developers, I think it'd be great if we had a kickstarter site where you could request a commercial project to be open-sourced, pitch in some money to support the developer.…
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Aerospike touches most of your points at much higher speed and scale. It is next gen redis, basically, with disk, with auto-sharding scale, with cross node queries. Cassandra is not difficult once you wrap your mind around column storage, and if you need that, no other storage style will do. The 15-node thing is also a major achilles heel. Who wants to commit to a stack that incurs massive technical debt in the event…
RethinkDB pushes well past 15 nodes: teams have demonstrated north of 25-30 nodes with linear scale.
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What is that C you're talking about?
C* is short for Cassandra.
ironic that this will be the move that actually propels rethinkdb... it's my feeling that software licensing day's are over for the little guys. If you are Oracle or Microsoft and have that brand recognition great. Coupled with commoditization of developers, I think it'd be great if we had a kickstarter site where you could request a commercial project to be open-sourced, pitch in some money to support the developer.…
My weird and unrelated question is: if I donate software to an open source group like the Linux Foundation, can I write it off my taxes? And if so, how do I assess the value of it? RethinkDB probably has some legitimate market value...can the founders reflect that on their taxes?
Not likely, since the Linux Foundation is a 501(c)6 organization, and donations are not tax-deductible.
I wish some company (apart from compose.io) would create a RethinkDB as a service (DBaaS). I would totally love a dynamodb or firebase kind of payment structure! I specifically excluded compose not because their service is not great (from what I've heard - it's excellent) but more so because they charge a premium for it.