Yahoo gave an update on its cloud storage platform, Sherpa today. Yahoo says the service addresses scalability, availability, and latency needs of Yahoo sites.
“Sherpa is horizontally scalable, and supports this scale elastically based on capacity demands. Sherpa is globally deployed within Yahoo! and data is replicated asynchronously (typically under a second) across data centers. Sherpa provides different consistency models, and applications can use consistency knobs and APIs to deal with data that is replicated asynchronously,” says P.P.S. Narayan on the Yahoo Developer Blog.
“In the last year, we have added a number of interesting (and useful) features to Sherpa that has helped us serve the needs of Yahoo! better,” he adds.
In the post, he talks about:
– Dot: Distributed Ordered Tables
– YAK: Moving the load
– Real-time Notification Streams
– More consistency alternatives
– What’s ahead
In the coming months, Yahoo plans to release secondary indexes, record-level adaptive replication, and very low latency access.