Return-Path: Delivered-To: apmail-incubator-cassandra-commits-archive@minotaur.apache.org Received: (qmail 1016 invoked from network); 5 Jan 2010 02:29:26 -0000 Received: from hermes.apache.org (HELO mail.apache.org) (140.211.11.3) by minotaur.apache.org with SMTP; 5 Jan 2010 02:29:26 -0000 Received: (qmail 7228 invoked by uid 500); 5 Jan 2010 02:29:26 -0000 Delivered-To: apmail-incubator-cassandra-commits-archive@incubator.apache.org Received: (qmail 7198 invoked by uid 500); 5 Jan 2010 02:29:26 -0000 Mailing-List: contact cassandra-commits-help@incubator.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: cassandra-dev@incubator.apache.org Delivered-To: mailing list cassandra-commits@incubator.apache.org Received: (qmail 6983 invoked by uid 99); 5 Jan 2010 02:29:26 -0000 Received: from athena.apache.org (HELO athena.apache.org) (140.211.11.136) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 05 Jan 2010 02:29:25 +0000 X-ASF-Spam-Status: No, hits=-2000.0 required=10.0 tests=ALL_TRUSTED X-Spam-Check-By: apache.org Received: from [140.211.11.140] (HELO brutus.apache.org) (140.211.11.140) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 05 Jan 2010 02:29:25 +0000 Received: from brutus.apache.org (localhost [127.0.0.1]) by brutus.apache.org (Postfix) with ESMTP id EFED5234C48C for ; Mon, 4 Jan 2010 18:29:04 -0800 (PST) Message-ID: <136695938.34371262658544981.JavaMail.jira@brutus.apache.org> Date: Tue, 5 Jan 2010 02:29:04 +0000 (UTC) From: "Jonathan Ellis (JIRA)" To: cassandra-commits@incubator.apache.org Subject: [jira] Created: (CASSANDRA-668) long commitlog syncs can cause write pauses MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 long commitlog syncs can cause write pauses ------------------------------------------- Key: CASSANDRA-668 URL: https://issues.apache.org/jira/browse/CASSANDRA-668 Project: Cassandra Issue Type: Bug Reporter: Jonathan Ellis Assignee: Jonathan Ellis Priority: Minor Fix For: 0.5, 0.9 on a heavily loaded system (deliberately exacerbated by running the bonnie++ i/o benchmarking tool at the same time as cassandra -- which might not be too far off from the environment you would see on some VPS hosts), we're seeing CL sync times of 1-5s, causing write pauses. -- This message is automatically generated by JIRA. - You can reply to this email to add a comment to the issue online.