On 11/15/2013 06:38 AM, Kian-Tat Lim wrote:
> Jacek,
>
>> Hmm, open source, persistent key-value store, just
>> released by Facebook.
> Umm, I don't see anything about failover or multiple masters. I
> think this is a very different use case. It sounds like it might be
> useful as the Tokyo Cabinet replacement for the objectId index.
It's shared-memory, no distributed consistency, using two fusion io
flash cards. They can do monster random writes to durable storage.
fusion io got 1 billion iops from 8 cards, so they might do 250million
iops for the 2 on the fb machine (though fb claimed 200k 4kb reads/sec),
compared to the 90iops we get from spinning disk.
Uh.... I wonder if zk does fsync in single-node to insure durability.
Its strongest goals are strictly-ordered, maximally-durable, consistent
distributed storage.
-Daniel
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