openstack team mailing list archive

[朱荣泽 <zrzhit@xxxxxxxxx>]

It is cool!

2012/8/15 John Dickinson <me@xxxxxx>

> Swift has many exciting features coming in the OpenStack Folsom
> Release this fall, but where do we go from here? What's next for Swift
> in grizzly?
>
> I've got some ideas. I'd like to mention them and see where you the
> community will take them. I've written up most of them into quick one-
> line blueprints in Launchpad. If you'd like to contribute, grab the
> blueprint and jump in.
>
> - Optimize the "many small writes" workload. Swift actually handles
>   many small concurrent writes very well. However, "many small writes"
>   generally also implies that the cardinality of a single container
>   gets very large. There are two ways this use case can be improved:
>
>     - Implement transparent container sharding
>       https://blueprints.launchpad.net/swift/+spec/container-sharding
>
>     - Provide better listing traversal abstractions. Listing a few
>       billion objects ten thousand at a time is somewhat impractical.
>
> - Solve globally distributed clusters. How can I have servers in
>   London and servers in San Jose in the same logical swift cluster
>   with three replicas total, but guaranteed to have at least one
>   replica in each cluster?
>   https://blueprints.launchpad.net/swift/+spec/multi-region
>
> - Support a single logical swift cluster with tiers of storage (eg
>   cheap spinning disks and expensive high IOPS SSD arrays). Can, for
>   example, a user choose to have a container and its objects be served
>   from a particular tier of storage?
>   https://blueprints.launchpad.net/swift/+spec/storage-tiers
>
> - Some deployers have implemented metadata searching by intercepting
>   write requests and sending the metadata to another system. Can
>   metadata searching be implemented in swift itself? One possible
>   implementation would be to dynamically generate indexes on the
>   container DB.
>   https://blueprints.launchpad.net/swift/+spec/searchable-metadata
>
> - Support PUTs with unlimited size. Implement server-side large object
>   splitting.
>   https://blueprints.launchpad.net/swift/+spec/large-single-uploads
>
> - Support the full HTTP spec for range requests
>   https://blueprints.launchpad.net/swift/+spec/multi-range-support
>
> - There are a few things that could be done to simplify installation
>
>     - Create or refactor existing code into a single swift binary or
>       startup script. Would it be possible, for example, to install
>       swift and run one command with the data drives listed and swift
>       "just works"?
>
>     - Build a ring server that automatically discovers devices
>       https://blueprints.launchpad.net/swift/+spec/ring-builder-server
>
>     - Provide a simple, intuitive way to test a deployment after install
>       https://blueprints.launchpad.net/swift/+spec/post-deploy-test
>
> - Support concurrent reads to objects to support a read-heavy workload
>   https://blueprints.launchpad.net/swift/+spec/concurrent-reads
>
> If you are in the San Francisco area, we will have a swift meetup on
> August 30 at Citizen Space SF at 6:30 pm.
> http://www.meetup.com/openstack/events/77706042/
>
> We will have a swift team meeting on Monday October 1 in
> #openstack-meeting at 8pm UTC to discuss the plans for swift over the
> next six months and the sessions for the design summit. If you are
> interested in participating in swift development, please attend.
>
> If you are a new contributor to swift, please read
> http://wiki.openstack.org/HowToContribute.
>
> --John
>
>
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