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add 0.7 releasenotes

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commit 1c6c70f0a9eea34e3a9da51d11067a85e517b818 1 parent ace665a
Andy Gross argv0 authored
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  1. +58 −0 releasenotes/riak-0.7.txt
58 releasenotes/riak-0.7.txt
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+Riak 0.7 Release Notes
+- The Riak source tree has undergone a major restructuring as part of a
+ transition to a new build tool -- rebar. This tool enforces OTP compliant
+ directory structures for the riak application and its dependencies and
+ provides an easy-to-use wrapper around the new reltool system available in
+ Erlang R1303+. Using reltool makes it possible to construct a standalone
+ server instance that can be used on machines without Erlang installed. This
+ transition has also enabled us to introduce a standardized script for
+ starting/stopping and other server management tasks.
+ You can watch a screencast on Riak and Rebar here:
+- In addition to the existing Client:list_keys function, there is now also
+ a Client:stream_list_keys function that provides the keys in a bucket over a
+ series of messages instead of in a single list. This can be useful with
+ larger buckets. The messages will be of the form {ReqId,{keys,Res}} followed
+ by a single {ReqId, done} to notify the client that all keys have been sent.
+- riak_vnode has undergone a complete rewrite to fix some handoff-related bugs
+ and to eliminate the need for a separate riak_vnode_sidekick process.
+- riak_stat : Riak can now track basic internal statistics about how many
+ reads and writes happened, and with what latency, in the last minute.
+ Add {riak_stat, true} to your Riak config file to enable stat tracking, then
+ use riak_client:get_stats/1 to retrieve the latest stats.
+- Setting the bucket property "allow_mult" to 'false' enables Riak's
+ automatic sibling resolution. Prior to this release, all resolution was
+ done at read time. With 0.7, sibling resolution is done at write time for
+ allow_mult=false buckets.
+- In fixing a bug in filtered_preflist, we also made Riak's default ring
+ partition claiming function more explicitly evenly distributed in 0.7. The
+ function will attempt to to produce an "optimal" claim for the N-value set
+ by the "target_n_val" configuration parameter (3, by default).
+- The latest version of Webmachine ( has been
+ integrated into Riak, which increases HTTP/Jiak performance considerably.
+- Jonathan Lee contributed a patch that causes any object metadata keys
+ beginning with "X-Riak-Meta" to be emitted as HTTP headers when using the
+ "raw" HTTP interface.
+- Sean Cribbs refactored the Ruby client library to be more idiomatic and
+ maintainable.
+- Jayson Baird contributed a new Python client that uses PyCURL when available.
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