Return-Path: X-Original-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Delivered-To: apmail-hadoop-hdfs-issues-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 7FD8F183B4 for ; Tue, 30 Jun 2015 00:01:06 +0000 (UTC) Received: (qmail 80729 invoked by uid 500); 30 Jun 2015 00:01:06 -0000 Delivered-To: apmail-hadoop-hdfs-issues-archive@hadoop.apache.org Received: (qmail 80638 invoked by uid 500); 30 Jun 2015 00:01:06 -0000 Mailing-List: contact hdfs-issues-help@hadoop.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: hdfs-issues@hadoop.apache.org Delivered-To: mailing list hdfs-issues@hadoop.apache.org Received: (qmail 80212 invoked by uid 99); 30 Jun 2015 00:01:06 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 30 Jun 2015 00:01:06 +0000 Date: Tue, 30 Jun 2015 00:01:06 +0000 (UTC) From: "Lei (Eddy) Xu (JIRA)" To: hdfs-issues@hadoop.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HDFS-8694) Expose the stats of IOErrors on each FsVolume through JMX MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 [ https://issues.apache.org/jira/browse/HDFS-8694?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Lei (Eddy) Xu updated HDFS-8694: -------------------------------- Status: Patch Available (was: Open) > Expose the stats of IOErrors on each FsVolume through JMX > --------------------------------------------------------- > > Key: HDFS-8694 > URL: https://issues.apache.org/jira/browse/HDFS-8694 > Project: Hadoop HDFS > Issue Type: Improvement > Components: datanode, HDFS > Affects Versions: 2.7.0 > Reporter: Lei (Eddy) Xu > Assignee: Lei (Eddy) Xu > Attachments: HDFS-8694.000.patch > > > Currently, once DataNode hits an {{IOError}} when writing / reading block files, it starts a background {{DiskChecker.checkDirs()}} thread. But if this thread successfully finishes, DN does not record this {{IOError}}. > We need one measurement to count all {{IOErrors}} for each volume. -- This message was sent by Atlassian JIRA (v6.3.4#6332)