From issues-return-170036-archive-asf-public=cust-asf.ponee.io@flink.apache.org Mon Jun 4 08:38:03 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 55E8E180636 for ; Mon, 4 Jun 2018 08:38:03 +0200 (CEST) Received: (qmail 39046 invoked by uid 500); 4 Jun 2018 06:38:02 -0000 Mailing-List: contact issues-help@flink.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@flink.apache.org Delivered-To: mailing list issues@flink.apache.org Received: (qmail 39037 invoked by uid 99); 4 Jun 2018 06:38:02 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd1-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Jun 2018 06:38:02 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd1-us-west.apache.org (ASF Mail Server at spamd1-us-west.apache.org) with ESMTP id DDA70C7EA8 for ; Mon, 4 Jun 2018 06:38:01 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd1-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -109.501 X-Spam-Level: X-Spam-Status: No, score=-109.501 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-0.5, KAM_ASCII_DIVIDERS=0.8, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001, 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 (spamd1-us-west.apache.org [10.40.0.7]) (amavisd-new, port 10024) with ESMTP id 3iG4SRlImyHn for ; Mon, 4 Jun 2018 06:38:01 +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 C680F5F230 for ; Mon, 4 Jun 2018 06:38:00 +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 556AEE005B for ; Mon, 4 Jun 2018 06:38:00 +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 14D822108B for ; Mon, 4 Jun 2018 06:38:00 +0000 (UTC) Date: Mon, 4 Jun 2018 06:38:00 +0000 (UTC) From: "ASF GitHub Bot (JIRA)" To: issues@flink.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (FLINK-9352) In Standalone checkpoint recover mode many jobs with same checkpoint interval cause IO pressure 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/FLINK-9352?page=3Dcom.atlassian= .jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D1649= 9805#comment-16499805 ]=20 ASF GitHub Bot commented on FLINK-9352: --------------------------------------- Github user yanghua commented on the issue: https://github.com/apache/flink/pull/6092 =20 cc @tillrohrmann @StephanEwen=20 > In Standalone checkpoint recover mode many jobs with same checkpoint inte= rval cause IO pressure > -------------------------------------------------------------------------= ---------------------- > > Key: FLINK-9352 > URL: https://issues.apache.org/jira/browse/FLINK-9352 > Project: Flink > Issue Type: Improvement > Components: State Backends, Checkpointing > Affects Versions: 1.5.0, 1.4.2, 1.6.0 > Reporter: vinoyang > Assignee: vinoyang > Priority: Major > > currently, the=C2=A0periodic checkpoint coordinator startCheckpointSchedu= ler=C2=A0uses=C2=A0*baseInterval* as the initialDelay parameter. the=C2=A0*= baseInterval* is also the checkpoint interval.=C2=A0 > In standalone checkpoint mode, many jobs config the same checkpoint inter= val. When all jobs being=C2=A0recovered=C2=A0(the cluster restart or jobman= ager leadership switched), all jobs' checkpoint=C2=A0period will=C2=A0tend = to=C2=A0accordance. All jobs' CheckpointCoordinator would start and trigger= in a=C2=A0approximate time point. > This=C2=A0caused the high IO cost in the same time=C2=A0period in our pro= duction=C2=A0scenario. > I suggest let the scheduleAtFixedRate's=C2=A0initial delay parameter as a= API config which can let user scatter checkpoint in this=C2=A0scenario. > =C2=A0 > cc=C2=A0[~StephanEwen] [~Zentol] -- This message was sent by Atlassian JIRA (v7.6.3#76005)