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 9CB87200C02 for ; Thu, 5 Jan 2017 16:03:00 +0100 (CET) Received: by cust-asf.ponee.io (Postfix) id 9B67C160B26; Thu, 5 Jan 2017 15:03:00 +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 E382C160B27 for ; Thu, 5 Jan 2017 16:02:59 +0100 (CET) Received: (qmail 24827 invoked by uid 500); 5 Jan 2017 15:02:59 -0000 Mailing-List: contact common-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list common-issues@hadoop.apache.org Received: (qmail 24766 invoked by uid 99); 5 Jan 2017 15:02:58 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 05 Jan 2017 15:02:58 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id C45622C2A68 for ; Thu, 5 Jan 2017 15:02:58 +0000 (UTC) Date: Thu, 5 Jan 2017 15:02:58 +0000 (UTC) From: "Thomas Demoor (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-13946) Document how HDFS updates timestamps in the FS spec; compare with object stores MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 archived-at: Thu, 05 Jan 2017 15:03:00 -0000 [ https://issues.apache.org/jira/browse/HADOOP-13946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15801582#comment-15801582 ] Thomas Demoor commented on HADOOP-13946: ---------------------------------------- Yup, same for multipart. The timestamp of the initiate multipart upload request is used as creation/modification time. > Document how HDFS updates timestamps in the FS spec; compare with object stores > ------------------------------------------------------------------------------- > > Key: HADOOP-13946 > URL: https://issues.apache.org/jira/browse/HADOOP-13946 > Project: Hadoop Common > Issue Type: Improvement > Components: documentation, fs > Affects Versions: 2.7.3 > Reporter: Steve Loughran > Assignee: Steve Loughran > Priority: Minor > Fix For: 2.8.0, 3.0.0-alpha2 > > Attachments: HADOOP-13946-001.patch > > > SPARK-17159 shows that the behavior of when HDFS updates timestamps isn't well documented. Document these in the FS spec. > I'm not going to add tests for this, as it is so very dependent on FS implementations, as in "POSIX filesystems may behave differently from HDFS". If someone knows what happens there, their contribution is welcome. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-issues-help@hadoop.apache.org