From user-return-56417-archive-asf-public=cust-asf.ponee.io@hbase.apache.org Sat Jan 4 15:02:03 2020 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 3650E18065E for ; Sat, 4 Jan 2020 16:02:03 +0100 (CET) Received: (qmail 54039 invoked by uid 500); 4 Jan 2020 15:01:58 -0000 Mailing-List: contact user-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: user@hbase.apache.org Delivered-To: mailing list user@hbase.apache.org Received: (qmail 54017 invoked by uid 99); 4 Jan 2020 15:01:57 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd4-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Sat, 04 Jan 2020 15:01:57 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd4-us-west.apache.org (ASF Mail Server at spamd4-us-west.apache.org) with ESMTP id 5D4E2C08A6; Sat, 4 Jan 2020 15:01:56 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 0.25 X-Spam-Level: X-Spam-Status: No, score=0.25 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_ENVFROM_END_DIGIT=0.25, HTML_MESSAGE=0.2, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001] autolearn=disabled Authentication-Results: spamd4-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com Received: from mx1-he-de.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id qAoljNs7Aomf; Sat, 4 Jan 2020 15:01:54 +0000 (UTC) Received-SPF: Pass (mailfrom) identity=mailfrom; client-ip=2a00:1450:4864:20::335; helo=mail-wm1-x335.google.com; envelope-from=palomino219@gmail.com; receiver= Received: from mail-wm1-x335.google.com (mail-wm1-x335.google.com [IPv6:2a00:1450:4864:20::335]) by mx1-he-de.apache.org (ASF Mail Server at mx1-he-de.apache.org) with ESMTPS id CBF8C7E12F; Sat, 4 Jan 2020 15:01:53 +0000 (UTC) Received: by mail-wm1-x335.google.com with SMTP id 20so10979557wmj.4; Sat, 04 Jan 2020 07:01:53 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:references:in-reply-to:from:date:message-id:subject:to :cc; bh=DLdWUeufcq5mYaKI+rYHu8ZKekhcKxE0R0wNGtczvxI=; b=d3e4a9k6jK0HEC6ozpEgbuWDqlW4LdaUNWfkD4ehGS8WQp8jSsG45Zk+mLp9an20cV 3FVfHMeMTcJDHA8DgmvO3ELd3nP3SSrXRooOy8pROybQkbiVCjJg7RHXxKRbMD57HDrf 3DoGRg3Ar8wiV3GdMbEDaoj+vpNEIX5cLEMmIjIL5tGJqxx2vgykG7jzJvZzeUhBLS7k uigCk0i6m9ZYr00gU8CltfPs2PkgMUrUitnGt+e6DwMSqBukZDbwdjc+0xhDmbPD26bg rDqQjoQNPnQCpoLDSyH1XHwqU1/qyjxDkZmHx8kBZluL7vuBxc12PYSixHRKqc+qY4fh pBYA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to:cc; bh=DLdWUeufcq5mYaKI+rYHu8ZKekhcKxE0R0wNGtczvxI=; b=GXEUShSeNf6qSVaWA2Eb8mrl+ooROXWx629nzdlabRjz+J/AkaPnfNMHmbQU1jEft6 NQuRgtx8xHPUmvdC0+8iajDUvP45TF1ealFsgepdcmBoC3mLxIF43OSzg06B5RV+QHmO 9l1MJ2YeOy1jNwpRjDjP+vAyF/BRGRkqo70B5cRrJOoIBUJg1o6U4Y7vyj1Qflu57+Fl Q4Ztgg7BmT64PyeCm9CB6Y470cfZ5fE6y9pbHdldH4328+ton9vUM4uUMXiEz54gZiVE oywtFYno+mj4XSaKRZCImrRFmJrisxeKvUn2j9za3K4096xWJhCx1fvdk+2eFxUTxhfM 4Dqg== X-Gm-Message-State: APjAAAWRdcogctopXzbYlLNJAyjxLVEfnlYXhqCk5N677Lm3jzhMnIs2 641Fu0HJwlFAsX3IUweMZFIwTOyD/Jm8u5yJ1RIpGgDu X-Google-Smtp-Source: APXvYqwxtVNEqPK9GE/a+ZBUuhnYFOzpoBDmDqGw2zK05rz34Qjy3eF4yTOXyJH8VbFcp9vxfCZ6GZ8F1h9pyrl02ME= X-Received: by 2002:a7b:ca4c:: with SMTP id m12mr24533225wml.176.1578150113113; Sat, 04 Jan 2020 07:01:53 -0800 (PST) MIME-Version: 1.0 References: <3216A7B3-582B-49E5-AD72-FC21322435F8@gmail.com> In-Reply-To: <3216A7B3-582B-49E5-AD72-FC21322435F8@gmail.com> From: =?UTF-8?B?5byg6ZOOKER1byBaaGFuZyk=?= Date: Sat, 4 Jan 2020 23:01:40 +0800 Message-ID: Subject: Re: [DISCUSS] Bump hadoop versions To: HBase Dev List Cc: hbase-user Content-Type: multipart/alternative; boundary="000000000000e4fb6b059b51b415" --000000000000e4fb6b059b51b415 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Anyway if we want to start releasing 3.x alpha versions, at least we need to have a release manager... Dang Andrew Purtell =E4=BA=8E2020=E5=B9=B41=E6=9C=884= =E6=97=A5=E5=91=A8=E5=85=AD =E4=B8=8A=E5=8D=8811:38=E5=86=99=E9=81=93=EF=BC= =9A > Releasing HBase 3 snapshots off master would be fine by me. > > > On Jan 3, 2020, at 7:37 PM, Sean Busbey wrote: > > > > =EF=BB=BFA while back I offered to start making hbase 3 alpha releases = so we had > > something we could all refer to in test environments. That offer still > > stands. > > > > > > I personally would still rather those releases be off of the master > branch > > because we still have too many branches given our tooling for backports= . > > > >> On Fri, Jan 3, 2020, 21:30 Andrew Purtell > wrote: > >> > >> Why not start a branch-3 and begin SNAPSHOT releasing of this branch > right > >> now? > >> > >> +1 to dropping Hadoop 2 support in HBase 3. We need the major incremen= t > to > >> make this kind of change, let=E2=80=99s take the opportunity. > >> > >> Regarding Hadoop 2, the discussion I have seen indicates Hadoop thinks > it > >> will be releasing 2.x for up to two more years. I don=E2=80=99t know h= ow many > >> releases there will actually be but let=E2=80=99s assume at least one = more 2.9, > and > >> a few 2.10. My employer is expected to use these versions along a > >> transition path to 3.x for at least the next eighteen months. We are > >> probably typical. We won=E2=80=99t need Hadoop 2 support for a HBase 3= but will > >> need it for HBase 1 and HBase 2 for =E2=80=9Ca couple years=E2=80=9D. > >> > >>>> On Jan 3, 2020, at 6:52 PM, Sean Busbey wrote: > >>> > >>> =EF=BB=BFI personally like having Hadoop 2 support still, but I agree= the > cadence > >>> out of Hadoop has been problematic. > >>> > >>> I would prefer we not change the state of Hadoop support in the maste= r > >>> branch until we have a release plan of some kind for HBase 3. I'd > rather > >>> that be sooner rather than later. > >>> > >>>> On Fri, Jan 3, 2020, 18:08 =E5=BC=A0=E9=93=8E(Duo Zhang) > wrote: > >>>> > >>>> Support Hadoop 2.x in 3.0.0 means we need to carry it over the whole > 3.x > >>>> release lines, which seems to be a problem since the Hadoop communit= y > do > >>>> not want to new 2.x release line any more... > >>>> > >>>> Nick Dimiduk =E4=BA=8E2020=E5=B9=B41=E6=9C=884= =E6=97=A5 =E5=91=A8=E5=85=AD06:55=E5=86=99=E9=81=93=EF=BC=9A > >>>> > >>>>> On Wed, Dec 25, 2019 at 5:38 PM =E5=BC=A0=E9=93=8E(Duo Zhang) > > >>>>> wrote: > >>>>> > >>>>>> We will only remove the hadoop 2.x support from hbase 3.x, which > does > >>>> not > >>>>>> have a formal release plan yet, for 2.x we will still support hado= op > >>>> 2.x. > >>>>>> > >>>>> > >>>>> Indeed there is no formal release plan for HBase-3.0, but I hope it= 's > >>>>> sooner than 2+ years away! What's the motivation for dropping Hadoo= p2 > >>>>> support? > >>>>> > >>>>> Wei-Chiu Chuang =E4=BA=8E2019=E5=B9=B412=E6=9C= =8826=E6=97=A5=E5=91=A8=E5=9B=9B =E4=B8=8A=E5=8D=888:57=E5=86=99=E9=81=93= =EF=BC=9A > >>>>>> > >>>>>>> With my Hadoop hat's on, we have not yet officially declared Hado= op > >>>> 2.8 > >>>>>>> EOL. I think the 2.8 download missing from the web page is just a > >>>>>> mistake. > >>>>>>> > >>>>>>> That being said, some of the biggest Hadoop users (LinkedIn, Yaho= o, > >>>>>>> Microsoft) that I am aware of are moving up from 2.7/2.8 to 2.10, > and > >>>>>> that > >>>>>>> 2.8.5 (the last version in the 2.8 line) was released in Sep 2018= , > >>>> more > >>>>>>> than a year ago. It doesn't look like the community has the desir= e > to > >>>>>>> continue the 2.8 line. > >>>>>>> > >>>>>>> I think it is a little extreme to remove hadoop2 profile, given > that > >>>>>> Hadoop > >>>>>>> 2.9 and 2.10 are still active and I expect Hadoop 2 to stay aroun= d > >>>> for > >>>>> at > >>>>>>> least 2 years out. > >>>>>>> > >>>>>>> On Thu, Dec 26, 2019 at 8:41 AM =E5=BC=A0=E9=93=8E(Duo Zhang) < > palomino219@gmail.com > >>>>> > >>>>>>> wrote: > >>>>>>> > >>>>>>>> Hadoop 2.8.x has been removed from the download page of hadoop s= o > I > >>>>>> think > >>>>>>>> it is time to bump the hadoop dependency to 2.9.x, on master an > >>>>>> branch-2. > >>>>>>>> > >>>>>>>> And the hadoop community is going to make 2.10.x the last minor > >>>>> release > >>>>>>>> line for 2.x > >>>>>>>> > >>>>>>>> > >>>>>>>> > >>>>>>> > >>>>>> > >>>>> > >>>> > >> > https://lists.apache.org/thread.html/cab84265d632b90d66dcd1ad957a7439a2c7= 6a987c7e62feafb4812e%40%3Ccommon-dev.hadoop.apache.org%3E > >>>>>>>> > >>>>>>>> > >>>>>>>> I think this is a sign that the community is moving forward to > 3.x. > >>>>> So > >>>>>> I > >>>>>>>> propose we make the master branch hadoop3 only, This requires > >>>>> changing > >>>>>>> the > >>>>>>>> pom a bit to active hadoop3 profile by default and remove the > >>>> hadoop2 > >>>>>>>> profile. > >>>>>>>> > >>>>>>>> Thoughts? Thanks. > >>>>>>>> > >>>>>>> > >>>>>> > >>>>> > >>>> > >> > --000000000000e4fb6b059b51b415--