Viewing profile — leif

> In that case all you've got is an in-memory queue that evaporates on a system crash. https://www.cs.berkeley.edu/~brewer/cs262/Aries.pdf > Remember that merge operations are O(N)…

The TokuDB implementation of Fractal Trees uses a single-process, multi-threaded model, which is incompatible with PostgreSQL's multi-process model. In theory, one could patch Toku…

That's not really online, it still rebuilds the entire table, it just does it in the background and shows the results once it's done. This is pretty similar to how TokuDB hot index…

Cracking is kind of similar in that it delays the "sorting work" done in the indexing structure. However, cracking is fairly heuristic and therefore hard to analyze without an inti…

This is the critical insight. TokuDB uses a write-ahead log which is synced according to the configuration, and can be made as immediate as full fsync on commit. This provides the …

TokuDB is built for a single-process model with threads for connections. This is incompatible with PostgreSQL's multi-process model, and patching TokuDB to support such a model wou…

A bottle is usually about 4 glasses (which is consistent with my experience, not sure how you made your calculation), so when shared, that's one to drink with the meal and one to s…

you seem fun at parties

>You even seem certain that a stranger on the Internet is part of the problem The stranger on the internet said they felt like part of the problem, so I don't really know what to t…

You could try talking to them about this. Try "hey, I understand being in this industry can be difficult as a woman, I am not very familiar with the problem but I don't want to be …

You've successfully completed steps 1 and 2: 1. Acknowledge there is a real problem. 2. Acknowledge you are part of the problem. Now, on to steps 3-n! 3. Don't be discouraged, acce…

I agree, the mask/not/and is standard within systems contexts. It need not be cognitive overhead, not to be elitist but if you don't have a copy of hacker's delight or the ability …

Tokutek, Boston, MA and New York, NY http://www.tokutek.com/careers We build and sell high-performance databases TokuDB and TokuMX. We are hiring: - Inside Sales Exec - QA Engineer…

It won't be patented. We hope others find it helpful and consider implementing it in similar systems.

We are working on several ways to prove to ourselves and the community that what we have is correct. The most important is obviously testing. We have tests that demonstrate the pro…

No, none of us know how to use those. :( If you're interested in building one and you have experience with them, get in touch and we can work through it together. I think the bigge…

Multi-document and multi-collection transactions are already a part of TokuMX[1]. Since commit of the oplog insert is atomic together with the actual operation's changes to documen…

My other reply didn't address some of your specific questions about 2.8: > We're seeing document-level locking We've had it from the beginning. Their implementation so far doesn't …

I can't add much to what Chris and Zardosht already said, but let me reiterate a few things regarding our fork: 1. You're a bit out of date. We merged changes to catch up to 2.4 in…

Yes, there are still problems with the election protocol, e.g. [1]. The right kind of network partitions can cause multiple primaries to stay up indefinitely, accepting writes on b…

whining about gifs seems like overkill

OK but the point in the article is to reduce reliance on shared state. This doesn't work in a database.

FTA: "Assuming servers are kept synchronized enough (the enough depending on your application), you may just solve the problem by acquiring time precisely enough." How on earth are…