From yarn-issues-return-152392-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org Fri Aug 31 00:45:05 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 E926D180656 for ; Fri, 31 Aug 2018 00:45:04 +0200 (CEST) Received: (qmail 85514 invoked by uid 500); 30 Aug 2018 22:45:04 -0000 Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list yarn-issues@hadoop.apache.org Received: (qmail 85503 invoked by uid 99); 30 Aug 2018 22:45:03 -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; Thu, 30 Aug 2018 22:45:03 +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 7A55CC721B for ; Thu, 30 Aug 2018 22:45:03 +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 2ivbtBlfuusZ for ; Thu, 30 Aug 2018 22:45:02 +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 9ACF95F489 for ; Thu, 30 Aug 2018 22:45:02 +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 BAA02E261D for ; Thu, 30 Aug 2018 22:45:01 +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 A34A726B5D for ; Thu, 30 Aug 2018 22:45:00 +0000 (UTC) Date: Thu, 30 Aug 2018 22:45:00 +0000 (UTC) From: "Chandni Singh (JIRA)" To: yarn-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (YARN-8706) DelayedProcessKiller is executed for Docker containers even though docker stop sends a KILL signal after the specified grace period 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/YARN-8706?page=3Dcom.atlassian= .jira.plugin.system.issuetabpanels:all-tabpanel ] Chandni Singh updated YARN-8706: -------------------------------- Attachment: YARN-8706.001.patch > DelayedProcessKiller is executed for Docker containers even though docker= stop sends a KILL signal after the specified grace period > -------------------------------------------------------------------------= ---------------------------------------------------------- > > Key: YARN-8706 > URL: https://issues.apache.org/jira/browse/YARN-8706 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Chandni Singh > Assignee: Chandni Singh > Priority: Major > Labels: docker > Attachments: YARN-8706.001.patch > > > {{DockerStopCommand}} adds a grace period of 10 seconds. > 10 seconds is also the default grace time use by docker stop > [https://docs.docker.com/engine/reference/commandline/stop/] > Documentation of the docker stop: > {quote}the main process inside the container will receive=C2=A0{{SIGTERM}= }, and after a grace period,=C2=A0{{SIGKILL}}. > {quote} > There is a {{DelayedProcessKiller}} in {{ContainerExcecutor}} which execu= tes for all containers after a delay when {{sleepDelayBeforeSigKill>0}}. By= default this is set to {{250 milliseconds}} and so irrespective of the con= tainer type, it will always get executed. > =20 > For a docker container, {{docker stop}} takes care of sending a {{SIGKILL= }} after the grace period > - when sleepDelayBeforeSigKill > 10 seconds, then there is no point of ex= ecuting DelayedProcessKiller > - when sleepDelayBeforeSigKill < 1 second, then the grace period should b= e the smallest value, which is 1 second, because anyways we are forcing kil= l after 250 ms > =20 -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: yarn-issues-help@hadoop.apache.org