Unformatted copy below, has links in the places you’d expect.
2.1
The Apache CouchDB development community is proud to announce the immediate
availability of version 2.1.
Version 2.1 incorporates 10 months of improvements to the already successful
2.0 release.
For CouchDB < 2.0 users, the main improvements in 2.0 still apply for 2.1:
• 99% API compatibility- native clustering for increased performance,
data redundancy, and ability to scale
• Easy querying with Mango
• New Admin interface- Major performance improvements around compaction
and replication.
Most importantly, CouchDB 2.0 finally fulfils CouchDB’s original vision of a
distributed and clustered document database.
The 2017 Annual CouchDB User Survey has revealed that after only 7 months, 68%
of our user-base have adopted CouchDB 2.0.
2.1
CouchDB 2.1 addresses most of the issues people found with the initial release
of 2.0. And aside from a few new features, there has been a major focus on
release tooling in a way that the project is now in a position to make more
regular and more stable releases going forward. This means faster bug fixes and
faster new features for all CouchDB users.
Major Features
CouchDB 2.1’s flagship feature is what we call the Replication Scheduler. It’s
a completely new way of how replications are managed in CouchDB. Replication is
CouchDB’s defining feature, and improvements there usually benefit the majority
of CouchDB users.
A CouchDB replication is a way to seamlessly synchronise two databases. There
are on-off replications and continuous replications for example when you want
to have a hot-spare copy of your database on another server or cluster. CouchDB
would run multiple continuous replications in parallel in an always-on fashion.
That means, even where there are no changes in the source databases, CouchDB
maintained a replication management process, HTTP sockets, file descriptors and
everything else required to replicate when an update occurs.
That is generally not a problem, until you start having many replications. A
common pattern in CouchDB to separate out data that is to be accessed by
different users is to have a database per user. Keeping a hot copy of thousands
or tens of thousands (or even more) database becomes a major undertaking and
CouchDB’s rather brute-force way of managing this (always-on) wasted a lot of
resources.
In addition, replication connection pooling as well as performance tuning
tuning was pre-replication instead of per-server, so there were a lot of
improvements including socket re-use that couldn’t be taken advantage of.
With the Replication Scheduler in 2.1, that all changes. Replications are now
managed per server, connections to other servers are managed in a pool that
different replications can share. And depending on how many resources CouchDB
users want to spend on replication, they can limit the number of allowed
concurrent replications. The Replication Manager will smartly cycle through all
replications in turn, to make sure everybody gets a fair share, without
exceeding server- or cluster-wide limits.
The Fauxton admin UI has been updated to support these changes as well,
including:
• New replicator section
• Supports new replication api
• Monitor _replicator db and _replicate replications
• Easier creation of replications
There is now a new conflict editor, that helps to make document conflicts
visible and easy to manage.
One of the biggest feedback-items we’ve received about Fauxton since it’s
release with CouchDB 2.0 was that the information density could be improved. In
2.1 Fauxton sports a brand new document listing section with alternating
json-view, metadata-view and and improved table view.
Other improvements include:
• Fauxton now fully using React
• Fixes to the Cluster setup page
• Improved pagination for _all_docs
• Fixed database encoding issues
• Lots of bug fixes and styling improvements
The least visible improvement in 2.1 is the one that will have the most impact
going forward. The team has spend the first half of 2017 with massively
improving the project test and build infrastructure. This includes:
• making sure the various test suites we have for CouchDB run reliably
in all CI contexts
• adding a whole new CI context in the ASF’s Jenkins setup so we can
automatically test multiple operating system versions
• automating the creation of binaries, specifically .rpm/.deb files for
releases and development versions
• In detail, the Jenkins setup today tests 4 variants of Linux with 2x
FreeBSd BSD and macOS in the works and automatically produces native package
manager binaries for all platforms that are being tested.
Binary packages for major releases make it easier for people to upgrade to
latest versions. Packages for in-development versions allow the bug reporters
to verify their issues being fixed more easily.
This all will allow the project to make more stable releases more frequently.
See the “What’s New” section of the documentation for a full list of
improvements and bug fixes.
We Need Your Help: Donate Hardware
We have big plans for our Jenkins pipeline, and we are already intentionally
limiting it’s usefulness, in order not to exceed our fair share of resources at
the ASF. As a result, we are asking for hardware donations for our CI pipeline.
Specifically we are looking for:
• Colocation facility server, ideally with root access, alternatively
VMs on said server.- sudo/root access
• 8+GB RAM
• 200+GB storage, SSD preferred
• must support Docker.
• The current focus is different Linux variants, but we’re also
interested in *BSD and other Unix flavours as well as Windows and Mac machines.
We’re happy to list sponsors of CI hardware in future release blog posts as
well the main CouchDB website.
New On the Blog
We’ve added two new categories of posts to the CouchDB blog
• A new User Story series, where projects and companies using CouchDB
show what they are doing.
• Developer profiles: get to meet the people behind CouchDB.
• And of course, the infamous CouchDB Weekly News continues its
relentless pace.
> On 2. Aug 2017, at 23:49, Joan Touzet <[email protected]> wrote:
>
> Can't read it - it wants me to log in. I tried my personal
> WP login and it was still inaccessible.
>
> -Joan
>
> ----- Original Message -----
> From: "Jan Lehnardt" <[email protected]>
> To: "marketing" <[email protected]>
> Sent: Wednesday, August 2, 2017 4:52:10 AM
> Subject: 2.1 announcement blog post draft
>
> Hey all,
>
> with 2.1 around the corner, I’ve added a draft for the 2.1 release blog post:
> https://wordpress.com/post/blog.couchdb.org/2089
>
> Any feedback welcome.
>
> Best
> Jan
> --
>
--
Professional Support for Apache CouchDB:
https://neighbourhood.ie/couchdb-support/
