I also wanted to raise the profile on the work that Ted worked on providing
substantially better visibility and control into the tasks which vnodes are
asked to schedule, execute and return from:
https://github.com/basho/riak_core/pull/895
This is the WIP tracking branch with the design, prototype code, etc. This is
an important effort to able to track "bad queries" from consuming an entire
node's worth of resources.
On Saturday, September 23, 2017, 2:32:35 AM GMT+1, Fred Dushin
<[email protected]> wrote:
Thank you, Andrew, and Bet365 for hosting this event, and for shepherding Riak
through these difficult times.
I will not be able to attend, but under enhancements, I would encourage the
group to discuss the late enhancements to Riak/KV to support efficient bucket
and key listing for sorted back ends. This work can be found on the develop
and develop-2.2 branches of riak_kv; it was not formally shipped in any Basho
production releases, but listing buckets has seen some testing (and the code
changes are relatively small).
Listing buckets in time proportional to the number of buckets (not the number
of keys in the cluster), and keys in a bucket proportional to the number of
keys in the bucket (not the number of keys in the cluster) seems like a
laudable goal for which I am sure customers would find use cases. Key listing
has always been an operation known to kill large clusters, and the advice has
always been, "don't do that", despite its obvious utility. With these changes,
that advice can be dropped for a subset of users.
-Fred
https://github.com/basho/riak_kv/pull/1634https://github.com/basho/riak_kv/pull/1650
On Sep 22, 2017, at 9:56 AM, [email protected] wrote:
Hi, We are beginning to plan out the two day workshop [1]. We are thinking the
first day will start with an introduction from Martin Davies, in which Martin
will detail current status and the asset list. After which we will get into
project questions, such as: Which license?The general consensus is Apache2. We
need to complete the discussion as HyperLogLog has been introduced which is
GPL’d. Our thoughts are to replace HLL. Baseline?We have heard some discussion
around where to baseline the codebase. The concern is during the demise of
Basho the correct level of diligence was not applied to promotes meaning the
code such as HLL has crept in. Governance?How are we to manage the project
going forward? Our feeling is we do not need a formal body as being discussed
in the slack group. We see the project going forward as a simple repo into
which likeminded developers agree and contribute changes. Placing overbearing
procedure and structure on what is currently a small community will dissuade
other from joining and contributing. Supporting infrastructure.The Basho
websites, github account, and mailing group are all included in the deal. We
are currently supporting the mailing list, and once the deal is complete we
will continue to support the Basho domains; restricting community disruption.
RoadmapBelow, in no particular order, are the items we wish to address
internally. If we can all share our lists we can come to an agreed community
roadmap between us. · Review / rationalisation of Basho JIRA tickets /
git issues · Replicationo Address known issues (30+) to add
stabilityo Selective replicationo Persistent realtime queueo Review of
general approach§ In / out of band§ Snapshot vs deltas · Generalo
Address known issues (20+) to add stabilityo Silent data loss bug in riak_kv
· Enhancementso G Setso Big Setso CRDT Mapso Async read /
write vnodeso Split backend vnodeso Head requests – don’t return body to
co-ordinatoro Rudimentary indexing (leverage TS work) ·
Consolidation / feature cross population of KV,CS, and TS codebases ·
Erlang / OTP upgrade At this point we want to keep the structure of the day
loose to allow the conversations to flow, our collective priorities to take
precedence. The sessions will be live streamed, with details to follow. We will
also man IRC / Slack for discourse. Food and refreshments will be provided
throughout the two days. Hopefully this gives us something to discuss in the
build up to the 12th Oct. We’re looking for everyone’s input so we can hit the
ground running. As a quick update on the status of the purchase. We have
exchanged funds and the court process continues. One clarifying point for
anyone following the court proceedings. The purchasing company is our
technology arm, Hillside Technology Limited, not the bet365 group. Thanks,Andy.
[1] https://www.meetup.com/RIAK-Development-Roadmap-Workshop/events/243302656/
| Andrew Deane |
| Systems Development Manager - Middleware |
| Hillside (Technology) Limited |
| [email protected] |
| bet365.com |
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