From common-issues-return-153222-archive-asf-public=cust-asf.ponee.io@hadoop.apache.org Mon Jun 4 19:53:04 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 8D91C180636 for ; Mon, 4 Jun 2018 19:53:03 +0200 (CEST) Received: (qmail 69430 invoked by uid 500); 4 Jun 2018 17:53:02 -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 69419 invoked by uid 99); 4 Jun 2018 17:53:02 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd3-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 04 Jun 2018 17:53:02 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd3-us-west.apache.org (ASF Mail Server at spamd3-us-west.apache.org) with ESMTP id E946D180101 for ; Mon, 4 Jun 2018 17:53:01 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd3-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: -110.311 X-Spam-Level: X-Spam-Status: No, score=-110.311 tagged_above=-999 required=6.31 tests=[ENV_AND_HDR_SPF_MATCH=-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 (spamd3-us-west.apache.org [10.40.0.10]) (amavisd-new, port 10024) with ESMTP id Qk1Yisk--JqZ for ; Mon, 4 Jun 2018 17:53:01 +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 1DDE95F57D for ; Mon, 4 Jun 2018 17:53:01 +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 A0C79E02E7 for ; Mon, 4 Jun 2018 17:53:00 +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 31AED21094 for ; Mon, 4 Jun 2018 17:53:00 +0000 (UTC) Date: Mon, 4 Jun 2018 17:53:00 +0000 (UTC) From: "Haibo Chen (JIRA)" To: common-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HADOOP-15507) Add MapReduce counters about EC bytes read 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/HADOOP-15507?page=3Dcom.atlassi= an.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D16= 500612#comment-16500612 ]=20 Haibo Chen commented on HADOOP-15507: ------------------------------------- The MapReduce part looks good to me, but I'm not very familiar with the era= se code or the file system API to comment on the rest of the patch. > Add MapReduce counters about EC bytes read > ------------------------------------------ > > Key: HADOOP-15507 > URL: https://issues.apache.org/jira/browse/HADOOP-15507 > Project: Hadoop Common > Issue Type: Improvement > Reporter: Xiao Chen > Assignee: Xiao Chen > Priority: Major > Attachments: HADOOP-15507.01.patch, image-2018-05-31-15-29-45-729= .png > > > HDFS has added Erasure Coding support in HDFS-7285. There are HDFS level = [ReadStatistics|https://github.com/apache/hadoop/blob/trunk/hadoop-hdfs-pro= ject/hadoop-hdfs-client/src/main/java/org/apache/hadoop/hdfs/ReadStatistics= .java]=C2=A0so from DFSClient we can know how much reads are EC/replication= . > In order for users to have a better view of how much of their workload is= impacted by EC, we can expose EC read bytes to File System Counters, and t= o MapReduce's job counters. This way, end users can tell from MR jobs direc= tly. -- This message was sent by Atlassian JIRA (v7.6.3#76005) --------------------------------------------------------------------- To unsubscribe, e-mail: common-issues-unsubscribe@hadoop.apache.org For additional commands, e-mail: common-issues-help@hadoop.apache.org