Return-Path: X-Original-To: archive-asf-public-internal@cust-asf2.ponee.io Delivered-To: archive-asf-public-internal@cust-asf2.ponee.io Received: from cust-asf.ponee.io (cust-asf.ponee.io [163.172.22.183]) by cust-asf2.ponee.io (Postfix) with ESMTP id 4173A200D24 for ; Tue, 24 Oct 2017 19:24:04 +0200 (CEST) Received: by cust-asf.ponee.io (Postfix) id 4012F160BDB; Tue, 24 Oct 2017 17:24:04 +0000 (UTC) Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by cust-asf.ponee.io (Postfix) with SMTP id 85D611609C8 for ; Tue, 24 Oct 2017 19:24:03 +0200 (CEST) Received: (qmail 57838 invoked by uid 500); 24 Oct 2017 17:24:02 -0000 Mailing-List: contact commits-help@beam.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@beam.apache.org Delivered-To: mailing list commits@beam.apache.org Received: (qmail 57829 invoked by uid 99); 24 Oct 2017 17:24:02 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Oct 2017 17:24:02 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id 033FC1A14E5 for ; Tue, 24 Oct 2017 17:24:02 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -100.002 X-Spam-Level: X-Spam-Status: No, score=-100.002 tagged_above=-999 required=6.31 tests=[RP_MATCHES_RCVD=-0.001, SPF_PASS=-0.001, USER_IN_WHITELIST=-100] autolearn=disabled Received: from mx1-lw-us.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id HE3VZ8esItMO for ; Tue, 24 Oct 2017 17:24:01 +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 E150D5FDBE for ; Tue, 24 Oct 2017 17:24:00 +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 73B95E06C2 for ; Tue, 24 Oct 2017 17:24:00 +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 2A911212F9 for ; Tue, 24 Oct 2017 17:24:00 +0000 (UTC) Date: Tue, 24 Oct 2017 17:24:00 +0000 (UTC) From: "Raghu Angadi (JIRA)" To: commits@beam.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (BEAM-3093) add an option 'FirstPollOffsetStrategy' to KafkaIO MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Tue, 24 Oct 2017 17:24:04 -0000 [ https://issues.apache.org/jira/browse/BEAM-3093?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16217318#comment-16217318 ] Raghu Angadi commented on BEAM-3093: ------------------------------------ Yes. withStartReadTime(). > add an option 'FirstPollOffsetStrategy' to KafkaIO > -------------------------------------------------- > > Key: BEAM-3093 > URL: https://issues.apache.org/jira/browse/BEAM-3093 > Project: Beam > Issue Type: Improvement > Components: sdk-java-core > Reporter: Xu Mingmin > Assignee: Kenneth Knowles > > This is a feature borrowed from Storm KafkaSpout. > *What's the issue?* > In KafkaIO, when offset is stored either in checkpoint or auto_committed, it cannot be changed in application, to force to read from earliest/latest. --This feature is important to reset the start offset when relaunching a job. > *Proposed solution:* > By borrowing the FirstPollOffsetStrategy concept, users can have more options: > 1). *{{EARLIEST}}*: always start_from_beginning no matter of what's in checkpoint/auto_commit; > 2). *{{LATEST}}*: always start_from_latest no matter of what's in checkpoint/auto_commit; > 3). *{{UNCOMMITTED_EARLIEST}}*: if no offset in checkpoint/auto_commit then start_from_beginning if, otherwise start_from_previous_offset; > 4). *{{UNCOMMITTED_LATEST}}*: if no offset in checkpoint/auto_commit then start_from_latest, otherwise start_from_previous_offset; > [~rangadi], any comments? -- This message was sent by Atlassian JIRA (v6.4.14#64029)