Return-Path: X-Original-To: apmail-hbase-issues-archive@www.apache.org Delivered-To: apmail-hbase-issues-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 4494E1067E for ; Fri, 5 Jul 2013 04:01:51 +0000 (UTC) Received: (qmail 33723 invoked by uid 500); 5 Jul 2013 04:01:51 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 33445 invoked by uid 500); 5 Jul 2013 04:01:50 -0000 Mailing-List: contact issues-help@hbase.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Delivered-To: mailing list issues@hbase.apache.org Received: (qmail 33373 invoked by uid 99); 5 Jul 2013 04:01:48 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 05 Jul 2013 04:01:48 +0000 Date: Fri, 5 Jul 2013 04:01:48 +0000 (UTC) From: "ramkrishna.s.vasudevan (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-8868) add metric to report client shortcircuit reads 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/HBASE-8868?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13700446#comment-13700446 ] ramkrishna.s.vasudevan commented on HBASE-8868: ----------------------------------------------- So i think we need HDFS to expose this metric wrt shortcircuit reads hit/miss count. Checksum metrics are already getting covered in the metrics system. So as Jean pointed out we can display the configuration and say whether it is turned on or not. I think it should go in the RS metrics side because this configuration is of more importance when set in the RS side. > add metric to report client shortcircuit reads > ---------------------------------------------- > > Key: HBASE-8868 > URL: https://issues.apache.org/jira/browse/HBASE-8868 > Project: HBase > Issue Type: Improvement > Components: metrics, regionserver > Affects Versions: 0.94.8, 0.95.1 > Reporter: Viral Bajaria > Priority: Minor > > With the availability of shortcircuit reads, when the feature is enabled there is no metric which exposes how many times the regionserver was able to shortcircuit the read and not make a IPC to the datanode. > It will be great to add the metric and expose it via Ganglia. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira