Ayende @ Rahien

Oren Eini aka Ayende Rahien CEO of Hibernating Rhinos LTD, which develops RavenDB, a NoSQL Open Source Document Database.

Get in touch with me:

oren@ravendb.net

+972 52-548-6969

Posts: 7,339 | Comments: 50,704

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Couchbase vs RavenDB Performance at Rakuten Kobo Whitepaper

Oct 07 2014

Working on Voron…

time to read 1 min | 53 words

This took a bit less than what I expected, but…

And yes, it works. And this is running on Ubuntu.

And no, it isn’t ready.

Tweet Share Share 5 comments

Tags:

raven

Comments

17 Sep 2014
21:08 PM

e-tobi

Just gave it a try - Voron.Tryout indeed works, but the unit tests end in a segfault or a deadlock - I'll take a look at this if I find some time over the weekend.

18 Sep 2014
05:19 AM

Ayende Rahien

e-tobi, Yes, there seems to be something that we missed there.

07 Oct 2014
13:33 PM

J Healy

Now you're talking. Been waiting for this port.

As an aside, have you had a chance to look at Aerospike? Worth a peek at what they're up to...

07 Oct 2014
16:15 PM

dhasenan

I'm feeling uncomfortably excited. I've wanted to use RavenDB on personal projects, but I use Linux almost exclusively.

@J Healy: Aerospike says it's an in-memory database that can handle 100TB of data on just a few servers. The biggest server I can get has 256GB of RAM. Just storing the raw data would take 400 of them. Indexing it would take more. They're almost certainly lying about it being an in-memory database. I'd guess they have some good caching algorithms and efficient point queries but are ultimately serving out of durable storage.

21 Oct 2014
13:56 PM

J Healy

Clearly once they get over the memory capacity of a box they go hybrid...

"You can run Aerospike in pure RAM with spinning disks for persistence or as a hybrid memory database with RAM and flash.

Indexes (primary and secondary) are always stored in DRAM for fast access and are never stored on Solid State Drives (SSDs) to ensure low wear.
Unlike other databases that use the linux file system that was built for rotational drives, Aerospike has implemented a log structured file system to access flash – raw blocks on SSDs – directly. Access is optimized for how flash works – with small block reads and large block writes – and parallelized across multiple SSDs for better throughput.
Per namespace storage configuration – each namespace can be configured to store data on DRAM or on SSDs."

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