Return-Path: X-Original-To: apmail-cassandra-commits-archive@www.apache.org Delivered-To: apmail-cassandra-commits-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id 0302B18F93 for ; Tue, 24 Nov 2015 16:30:13 +0000 (UTC) Received: (qmail 29417 invoked by uid 500); 24 Nov 2015 16:30:11 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 29367 invoked by uid 500); 24 Nov 2015 16:30:11 -0000 Mailing-List: contact commits-help@cassandra.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: dev@cassandra.apache.org Delivered-To: mailing list commits@cassandra.apache.org Received: (qmail 29093 invoked by uid 99); 24 Nov 2015 16:30:11 -0000 Received: from arcas.apache.org (HELO arcas) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Tue, 24 Nov 2015 16:30:11 +0000 Received: from arcas.apache.org (localhost [127.0.0.1]) by arcas (Postfix) with ESMTP id 7703B2C1F8F for ; Tue, 24 Nov 2015 16:30:11 +0000 (UTC) Date: Tue, 24 Nov 2015 16:30:11 +0000 (UTC) From: "Yuki Morishita (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Updated] (CASSANDRA-6455) Improve concurrency of repair process 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/CASSANDRA-6455?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ] Yuki Morishita updated CASSANDRA-6455: -------------------------------------- Component/s: Streaming and Messaging > Improve concurrency of repair process > ------------------------------------- > > Key: CASSANDRA-6455 > URL: https://issues.apache.org/jira/browse/CASSANDRA-6455 > Project: Cassandra > Issue Type: Improvement > Components: Streaming and Messaging > Reporter: Yuki Morishita > Assignee: Yuki Morishita > Priority: Minor > Labels: repair > Fix For: 2.2.0 beta 1 > > Attachments: 6455-3.0-v2.txt, 6455-3.0.txt, 6455-tinyfix.patch, 6455.txt > > > Currently, most of the repair tasks (taking snapshots, send/receiving merkle tree, compute MT difference, etc) are done on single threaded AntiEntropyStage. > This causes a problem like CASSANDRA-6415 and likely to cause unnecessary wait. > Also, repair is done one CF at the time. I think we can parallelize this(concurrency is configurable by a user based on # of CF and load of the nodes) for faster processing. -- This message was sent by Atlassian JIRA (v6.3.4#6332)