Return-Path: X-Original-To: apmail-accumulo-notifications-archive@minotaur.apache.org Delivered-To: apmail-accumulo-notifications-archive@minotaur.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id ED6C310BF9 for ; Fri, 30 Aug 2013 19:23:54 +0000 (UTC) Received: (qmail 52627 invoked by uid 500); 30 Aug 2013 19:23:54 -0000 Delivered-To: apmail-accumulo-notifications-archive@accumulo.apache.org Received: (qmail 51860 invoked by uid 500); 30 Aug 2013 19:23:52 -0000 Mailing-List: contact notifications-help@accumulo.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: jira@apache.org Delivered-To: mailing list notifications@accumulo.apache.org Received: (qmail 51635 invoked by uid 99); 30 Aug 2013 19:23:52 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Fri, 30 Aug 2013 19:23:52 +0000 Date: Fri, 30 Aug 2013 19:23:52 +0000 (UTC) From: "Mike Drob (JIRA)" To: notifications@accumulo.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Commented] (ACCUMULO-1534) Tablet Server using large number of decompressors during a scan 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/ACCUMULO-1534?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13755053#comment-13755053 ] Mike Drob commented on ACCUMULO-1534: ------------------------------------- bq. Another option is to modify the hadoop io.file.buffer.size to something smaller than the current value. Correction: The property to set might be {{tfile.fs.input.buffer.size}}, in the hadoop conf? > Tablet Server using large number of decompressors during a scan > --------------------------------------------------------------- > > Key: ACCUMULO-1534 > URL: https://issues.apache.org/jira/browse/ACCUMULO-1534 > Project: Accumulo > Issue Type: Bug > Affects Versions: 1.4.3 > Reporter: Mike Drob > Fix For: 1.5.1, 1.6.0 > > > I believe this issue is similar to ACCUMULO-665. We've run into a situation where a complex iterator tree creates a large number of decompressors from the underlying CodecPool for serving scans. Each decompressor holds on to a large buffer and the total volume ends up killing the tserver. > We have verified that turning off compression makes this problem go away. -- 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