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 8D891180C0 for ; Fri, 23 Oct 2015 19:08:28 +0000 (UTC) Received: (qmail 40435 invoked by uid 500); 23 Oct 2015 19:08:28 -0000 Delivered-To: apmail-hbase-issues-archive@hbase.apache.org Received: (qmail 40335 invoked by uid 500); 23 Oct 2015 19:08:28 -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 40082 invoked by uid 99); 23 Oct 2015 19:08:28 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 23 Oct 2015 19:08:28 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id DCEBF2C1F71 for ; Fri, 23 Oct 2015 19:08:27 +0000 (UTC) Date: Fri, 23 Oct 2015 19:08:27 +0000 (UTC) From: "Andrew Purtell (JIRA)" To: issues@hbase.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (HBASE-12912) StoreScanner calls Configuration for Boolean Check on each initialization 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-12912?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Andrew Purtell updated HBASE-12912: ----------------------------------- Issue Type: Sub-task (was: Bug) Parent: HBASE-14266 > StoreScanner calls Configuration for Boolean Check on each initialization > ------------------------------------------------------------------------- > > Key: HBASE-12912 > URL: https://issues.apache.org/jira/browse/HBASE-12912 > Project: HBase > Issue Type: Sub-task > Reporter: John Leach > Assignee: John Leach > Fix For: 2.0.0, 1.3.0, 0.98.16 > > Attachments: StoreScannerStall.tiff > > Original Estimate: 1h > Remaining Estimate: 1h > > There is a clear CPU drain and iterator creation when creating store scanners under high load. Splice was running a TPCC test of our database and we are seeing object creation and CPU waste on the boolean check.... > Code Snippet... > if (store != null && ((HStore)store).getHRegion() != null > && store.getStorefilesCount() > 1) { > RegionServerServices rsService = ((HStore)store).getHRegion().getRegionServerServices(); > if (rsService == null || !rsService.getConfiguration().getBoolean( > STORESCANNER_PARALLEL_SEEK_ENABLE, false)) return; > isParallelSeekEnabled = true; > executor = rsService.getExecutorService(); > } > Will attach profile... -- This message was sent by Atlassian JIRA (v6.3.4#6332)