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 26E8418EF6 for ; Fri, 26 Feb 2016 17:40:19 +0000 (UTC) Received: (qmail 50209 invoked by uid 500); 26 Feb 2016 17:40:18 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 50136 invoked by uid 500); 26 Feb 2016 17:40:18 -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 49927 invoked by uid 99); 26 Feb 2016 17:40:18 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 26 Feb 2016 17:40:18 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 342092C1F68 for ; Fri, 26 Feb 2016 17:40:18 +0000 (UTC) Date: Fri, 26 Feb 2016 17:40:18 +0000 (UTC) From: "stack (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (HBASE-15338) Add a option to disable the data block cache for testing the performance of underlying file system 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-15338?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15169393#comment-15169393 ] stack commented on HBASE-15338: ------------------------------- Thank you all for persisting. There are too many configs in this area. You fellas seem to be doing a bit of weeding. Thats great. > Add a option to disable the data block cache for testing the performance of underlying file system > -------------------------------------------------------------------------------------------------- > > Key: HBASE-15338 > URL: https://issues.apache.org/jira/browse/HBASE-15338 > Project: HBase > Issue Type: Improvement > Components: integration tests > Reporter: Liu Shaohui > Assignee: Liu Shaohui > Priority: Minor > Fix For: 2.0.0 > > Attachments: HBASE-15338-trunk-v1.diff, HBASE-15338-trunk-v2.diff, HBASE-15338-trunk-v3.diff, HBASE-15338-trunk-v4.diff, HBASE-15338-trunk-v5.diff, HBASE-15338-trunk-v6.diff > > > When testing and comparing the performance of different file systems(HDFS, Azure blob storage, AWS S3 and so on) for HBase, it's better to avoid the affect of the HBase BlockCache and get the actually random read latency when data block is read from underlying file system. (Usually, the index block and meta block should be cached in memory in the testing). > So we add a option in CacheConfig to disable the data block cache. > Suggestions are welcomed~ Thanks -- This message was sent by Atlassian JIRA (v6.3.4#6332)