From issues-return-117607-archive-asf-public=cust-asf.ponee.io@hive.apache.org Fri May 11 09:58:05 2018 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 [140.211.11.3]) by mx-eu-01.ponee.io (Postfix) with SMTP id 514A218067B for ; Fri, 11 May 2018 09:58:04 +0200 (CEST) Received: (qmail 8553 invoked by uid 500); 11 May 2018 07:58:02 -0000 Mailing-List: contact issues-help@hive.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@hive.apache.org Delivered-To: mailing list issues@hive.apache.org Received: (qmail 8497 invoked by uid 99); 11 May 2018 07:58:02 -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; Fri, 11 May 2018 07:58:02 +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 4763AC00D3 for ; Fri, 11 May 2018 07:58:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd4-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.011 X-Spam-Level: X-Spam-Status: No, score=-109.011 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, KAM_NUMSUBJECT=0.5, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, T_RP_MATCHES_RCVD=-0.01, USER_IN_DEF_SPF_WL=-7.5, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd4-us-west.apache.org [10.40.0.11]) (amavisd-new, port 10024) with ESMTP id cbsna54insfn for ; Fri, 11 May 2018 07:58:01 +0000 (UTC) Received: from mailrelay1-us-west.apache.org (mailrelay1-us-west.apache.org [209.188.14.139]) by mx1-lw-us.apache.org (ASF Mail Server at mx1-lw-us.apache.org) with ESMTP id 2EC835FBEA for ; Fri, 11 May 2018 07:58:01 +0000 (UTC) Received: from jira-lw-us.apache.org (unknown [207.244.88.139]) by mailrelay1-us-west.apache.org (ASF Mail Server at mailrelay1-us-west.apache.org) with ESMTP id AC2A2E0F37 for ; Fri, 11 May 2018 07:58:00 +0000 (UTC) Received: from jira-lw-us.apache.org (localhost [127.0.0.1]) by jira-lw-us.apache.org (ASF Mail Server at jira-lw-us.apache.org) with ESMTP id 3E24921548 for ; Fri, 11 May 2018 07:58:00 +0000 (UTC) Date: Fri, 11 May 2018 07:58:00 +0000 (UTC) From: "Laszlo Bodor (JIRA)" To: issues@hive.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HIVE-17852) remove support for list bucketing "stored as directories" in 3.0 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HIVE-17852?page=3Dcom.atlassian= .jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1647= 1620#comment-16471620 ]=20 Laszlo Bodor commented on HIVE-17852: ------------------------------------- Just for reference: this was introduced by HIVE-3649 > remove support for list bucketing "stored as directories" in 3.0 > ---------------------------------------------------------------- > > Key: HIVE-17852 > URL: https://issues.apache.org/jira/browse/HIVE-17852 > Project: Hive > Issue Type: Bug > Reporter: Sergey Shelukhin > Assignee: Laszlo Bodor > Priority: Major > > From the email thread: > 1) LB, when stored as directories, adds a lot of low-level complexity to = Hive tables that has to be accounted for in many places in the code where t= he files are written or modified - from FSOP to ACID/replication/export. > 2) While working on some FSOP code I noticed that some of that logic is b= roken - e.g. the duplicate file removal from tasks, a pretty fundamental co= rrectness feature in Hive, may be broken. LB also doesn=E2=80=99t appear to= be compatible with e.g. regular bucketing. > 3) The feature hasn=E2=80=99t seen development activity in a while; it al= so doesn=E2=80=99t appear to be used a lot. > Keeping with the theme of cleaning up =E2=80=9Clegacy=E2=80=9D code for 3= .0, I was proposing we remove it. > (2) also suggested that, if needed, it might be easier to implement simil= ar functionality by adding some flexibility to partitions (which LB directo= ries look like anyway); that would also keep the logic on a higher level of= abstraction (split generation, partition pruning) as opposed to many low-l= evel places like FSOP, etc. -- This message was sent by Atlassian JIRA (v7.6.3#76005)