Riak 2.1 is available [1]! Let’s start with the most fun part.
## New Feature Riak 2.1 introduces the concept of “write once” buckets, buckets whose entries are intended to be written exactly once, and never updated or over-written. The write_once property is applied to a bucket type and may only be set at bucket creation time. This allows Riak to avoid a "read before write" for write_once buckets only. More information, as always, is available in the docs [2] ## Other updates There are a number of GitHub Issues closed with the 2.1 release. Some noteworthy updates: * A nice solution for a corner case that could result in data loss [3] * A public API related to riak_core_ring_manager thanks to Darach Ennis! [4] * A JSON writer for a number of riak_admin commands - see commit for details [5] * Updates to Yokozuna (Riak’s Solr integration) that include additional metrics thanks to Jon Anderson! [6] Be sure to see the full Release Notes here [7] and the Product Advisories [8]. ## Upgrading Be sure to review documentation [7] before an upgrade. It’s worth noting that all nodes in a cluster must be at 2.1 before you set the write_once property on a bucket. It’s worth noting that there is a known issue with Yokozuna that causes entry loss on AAE activity [9]. Please keep this in mind before upgrading. ## Feedback please Do you have a use case where write_once could be helpful? Please reply to me directly! I would love to learn about your environment and be able to share more details with you. Thanks, Matt Developer Advocate twitter.com/mjbrender [1] http://docs.basho.com/riak/latest/downloads/ [2] http://docs.basho.com/riak/latest/dev/advanced/write-once [3] https://github.com/basho/riak_kv/issues/679 [4] https://github.com/basho/riak_core/pull/716 [5] https://github.com/basho/clique/commit/0560e7a135d9a1e77646384681ae88baf0cba31a [6] https://github.com/basho/riak_kv/pull/855 [7] https://github.com/basho/riak/blob/develop/RELEASE-NOTES.md [8] http://docs.basho.com/riak/latest/community/product-advisories/ [9] https://github.com/basho/yokozuna/issues/481 ᐧ _______________________________________________ riak-users mailing list [email protected] http://lists.basho.com/mailman/listinfo/riak-users_lists.basho.com
