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From: =?UTF-8?Q?Enis_S=C3=B6ztutar?= <enis.soz@gmail.com>
Date: Wed, 3 Dec 2014 11:04:57 -0800
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 <CAMUu0w8XHGSbYmL-atQrS4SE=tRr=CJCE3qRHvZBJbzyLDPJjQ@mail.gmail.com>
Subject: Re: First release candidate for HBase 0.99.2 (RC0) is available.
 Please vote by 12/06/2014
To: "dev@hbase.apache.org" <dev@hbase.apache.org>
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I think this is still a case-by-case basis. The problem is that we cannot
keep track of what methods/classes that Phoenix depends on without Phoenix
tells us first. There is a special marker
InterfaceAudience.LimitedPrivate(Phoenix) just for that purpose.

For some of the stuff (like SplitTransaction) for example, I do not think
that we should have any restrictions in HBase in terms of refactoring. For
things like MetaReader, etc I can see that having more stable interfaces
there will help both projects.

Enis

On Wed, Dec 3, 2014 at 7:44 AM, Ted Yu <yuzhihong@gmail.com> wrote:

> Compiling Phoenix master against 0.99.2, I got:
> http://pastebin.com/gaxCs8fT
>
> Some removed methods are in HBase classes that are marked
> with @InterfaceAudience.Private
> I want to get some opinion on whether such methods should be deprecated
> first.
>
> Cheers
>
> On Tue, Dec 2, 2014 at 10:28 PM, Enis S=C3=B6ztutar <enis@apache.org> wro=
te:
>
> > First release candidate for HBase 0.99.2 (RC0) is available. Please vot=
e
> by
> > 12/06/2014
> >
> > The first release candidate for the third release from branch-1, HBase
> > 0.99.2 RC0, is
> > available for download at
> https://people.apache.org/~enis/hbase-0.99.2RC0/
> >
> > Maven artifacts are also available in the temporary repository
> > https://repository.apache.org/content/repositories/orgapachehbase-1048/
> >
> > Signed with my code signing key E964B5FF. Can be found here:
> > https://people.apache.org/keys/committer/enis.asc
> >
> > Signed tag in the repository can be found here:
> >
> >
> https://git-wip-us.apache.org/repos/asf?p=3Dhbase.git;a=3Dtag;h=3D080ab72=
30847776b7a2867dcbd3d421969d2dd37
> >
> > NOTE IN GIGANTIC LETTERS THAT THIS IS A DEVELOPER RELEASE.
> > DO NOT USE THIS RELEASE IN PRODUCTION.
> >
> > HBase 0.99.2 is a "developer preview" release, and an odd-numbered
> release
> > as
> > defined in
> https://hbase.apache.org/book/upgrading.html#hbase.versioning.
> > This release IS NOT intended for production use, and does not contain a=
ny
> > backwards or forwards compatibility guarantees (even within minor
> versions
> > 0.99.x). Please refrain from deploying this over important data.
> >
> > 0.99.2 release is provided from branch-1, which will be the basis for
> > HBase-1.0
> > release. This is the last planned 0.99.x release before 1.0. The reason
> for
> > doing a developer preview release is to get more testing for the branch=
-1
> > code
> > that will be released soon as HBase-1.0.0. Thus, all contribution in
> terms
> > of
> > testing, benchmarking, checking API / source /wire compatibility,
> checking
> > out
> > documentation and further code contribution is highly appreciated. 1.0
> will
> > be
> > the first series in the 1.x line of releases which are expected to keep
> > compatibility with previous 1.x releases. Thus it is very important to
> > check
> > the client side and server side APIs for compatibility and
> maintainability
> > concerns for future releases.
> >
> > 0.99.2 builds on top of all the changes that is in the 0.99.0 (an
> overview
> > can be found at [1]) and 0.99.1 releases[2]. The theme of (eventual) 1.=
0
> > release is to become a stable base for future 1.x series of releases. 1=
.0
> > release will aim to achieve at least the same level of stability of 0.9=
8
> > releases without introducing too many new features.
> >
> > The work to clearly mark and differentiate client facing  APIs, and
> > redefine
> > some of the client interfaces for improving semantics, easy of use and
> > maintainability has continued in 0.99.2 release. Marking/remarking of
> > interfaces with InterfaceAudience has also been going on (HBASE-10462),
> > which will identify areas for compatibility (with clients, coprocessors
> > and dependent projects like Phoenix) for future releases.
> >
> > 0.99.2 contains 190 issues fixed on top of 0.99.1. Some other notable
> > improvements
> > in this release are
> >  - [HBASE-12075] - Preemptive Fast Fail
> >  - [HBASE-12147] - Porting Online Config Change from 89-fb
> >  - [HBASE-12354] - Update dependencies in time for 1.0 release
> >  - [HBASE-12363] - Improve how KEEP_DELETED_CELLS works with MIN_VERSIO=
NS
> >  - [HBASE-12434] - Add a command to compact all the regions in a
> > regionserver
> >  - [HBASE-8707] - Add LongComparator for filter
> >  - [HBASE-12286] - [shell] Add server/cluster online load of
> configuration
> > changes
> >  - [HBASE-12361] - Show data locality of region in table page
> >  - [HBASE-12496] - A blockedRequestsCount metric
> >  - Switch to using new style of client APIs internally (in a lot of
> places)
> >  - Improvements in visibility labels
> >  - Perf improvements
> >  - Some more documentation improvements
> >  - Numerous improvements in other areas and bug fixes.
> >
> > The release has these changes in default behavior (from 0.99.1):
> >  - Disabled the "Distributed Log Replay" feature by default. Similar to
> > 0.98
> >   and earlier releases "Distributed Log Split" is the default.
> >
> >
> > Thanks for everybody who have contributed to this release. Full list of
> the
> > issues
> > can be found here:
> >
> >
> https://issues.apache.org/jira/secure/ReleaseNote.jspa?projectId=3D123107=
53&version=3D12328822
> >
> >
> > Compatibility
> > -------------
> > 0.99.x series of releases are preview of upcoming 1.0 release. HBase-1.=
0
> is
> > planned to be wire compatible with 0.98.x releases. Clients and
> > servers running in different versions as long as new features are not
> used
> > should be possible.
> > A rolling upgrade from 0.98.x clusters to 0.99.2 is supported as well.
> > 0.99.2
> > introduces a new file format (hfile v3) that is enabled by default that
> > 0.96.x code cannot read. Thus, rolling upgrade from 0.96 directly to 0.=
99
> > is
> > not supported.
> >
> > Direct migration from 0.94.x, 0.96.x and 0.98.x is also supported but i=
t
> IS
> > NOT
> > tested extensively. Before HBase-1.0 we expect to complete the tests.
> >
> > Binary compatibility at the Java API layer with earlier versions (0.98.=
x,
> > 0.96.x and 0.94.x) is not supported. You may have to recompile your
> client
> > code and any server side code (coprocessors, filters etc) referring to
> > hbase jars.
> >
> > 0.99.x release introduces new APIs, and deprecates some of commonly-use=
d
> > client side APIs (HTableInterface, etc). However, client side code is
> > expected
> > to be source compatible with earlier versions. However we advise to
> update
> > your application to use the new style of APIs, since deprecated APIs
> might
> > be removed in future releases (2.x).
> >
> >
> > Supported Hadoop versions
> > -------------------------
> > 0.99.x releases drop support for Hadoop-1.x releases. Only Hadoop-2.x
> > releases are supported. Hadoop-2.4.x and Hadoop-2.5.x releases are the
> > most tested hadoop releases and we recommend running with those version=
s
> > (or later versions). Earlier Hadoop-2 based releases (hadoop-2.2.x and
> > 2.3.x)
> > are not tested to the full extend. More information can be found here:
> > https://hbase.apache.org/book/configuration.html#hadoop
> >
> >
> > Supported Java versions
> > -------------------------
> > 0.99.x releases drop support for JDK6. Only JDK7 is supported. JDK8
> support
> > is experimental. More information can be found here:
> > https://hbase.apache.org/book/configuration.html#java
> >
> >
> > Voting
> > ------
> > Please try to test and vote on this release by 12/06/2014 11:59PM PDT.
> > This is a developer (beta) release, so we have a shorter vote time.
> > [] +1 Release the artifacts as 0.99.2
> > [] -1 DO NOT release the artifacts as 0.99.2, because...
> >
> > Thanks for helping to get a stable release out!
> >
> > References
> > ----------
> > [1]
> >
> >
> https://mail-archives.apache.org/mod_mbox/hbase-dev/201409.mbox/%3CCAMUu0=
w94oARqcz2zY4ZLqy_AaqN70whhH1yCS_0BjPSEeEcM-w@mail.gmail.com%3E
> > [2]
> >
> >
> https://mail-archives.apache.org/mod_mbox/hbase-dev/201409.mbox/%3CCAMUu0=
w9Y_+Afw6wW0hA_P8KBEW35B3ncsHbUQAcfndzs8TcMyA@mail.gmail.com%3E
> >
> > Enis
> >
>

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