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 18F76102B0 for ; Wed, 27 Nov 2013 01:30:36 +0000 (UTC) Received: (qmail 68080 invoked by uid 500); 27 Nov 2013 01:30:35 -0000 Delivered-To: apmail-cassandra-commits-archive@cassandra.apache.org Received: (qmail 68032 invoked by uid 500); 27 Nov 2013 01:30:35 -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 67935 invoked by uid 99); 27 Nov 2013 01:30:35 -0000 Received: from arcas.apache.org (HELO arcas.apache.org) (140.211.11.28) by apache.org (qpsmtpd/0.29) with ESMTP; Wed, 27 Nov 2013 01:30:35 +0000 Date: Wed, 27 Nov 2013 01:30:35 +0000 (UTC) From: "Quentin Conner (JIRA)" To: commits@cassandra.apache.org Message-ID: In-Reply-To: References: Subject: [jira] [Created] (CASSANDRA-6409) gossip performance improvement at node startup MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-JIRA-FingerPrint: 30527f35849b9dde25b450d4833f0394 Quentin Conner created CASSANDRA-6409: ----------------------------------------- Summary: gossip performance improvement at node startup Key: CASSANDRA-6409 URL: https://issues.apache.org/jira/browse/CASSANDRA-6409 Project: Cassandra Issue Type: Bug Reporter: Quentin Conner With large clusters (> 500 nodes) and num_tokens > 255 we sometimes see a node have trouble starting up. CPU usage for one thread is pegged. We see this concurrent with Gossip flaps on the node trying to learn the ring topology. Other nodes on the ring, that are already at steady state do not seem to suffer. It is the node joining the large ring that has trouble. -- This message was sent by Atlassian JIRA (v6.1#6144)