Return-Path: X-Original-To: apmail-activemq-users-archive@www.apache.org Delivered-To: apmail-activemq-users-archive@www.apache.org Received: from mail.apache.org (hermes.apache.org [140.211.11.3]) by minotaur.apache.org (Postfix) with SMTP id B93C8106AA for ; Thu, 20 Feb 2014 07:27:08 +0000 (UTC) Received: (qmail 61457 invoked by uid 500); 20 Feb 2014 07:26:04 -0000 Delivered-To: apmail-activemq-users-archive@activemq.apache.org Received: (qmail 61333 invoked by uid 500); 20 Feb 2014 07:25:51 -0000 Mailing-List: contact users-help@activemq.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@activemq.apache.org Delivered-To: mailing list users@activemq.apache.org Received: (qmail 60985 invoked by uid 99); 20 Feb 2014 07:25:35 -0000 Received: from nike.apache.org (HELO nike.apache.org) (192.87.106.230) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 20 Feb 2014 07:25:35 +0000 X-ASF-Spam-Status: No, hits=2.5 required=5.0 tests=FREEMAIL_ENVFROM_END_DIGIT,SPF_SOFTFAIL,URI_HEX X-Spam-Check-By: apache.org Received-SPF: softfail (nike.apache.org: transitioning domain of xabhi91@gmail.com does not designate 216.139.236.26 as permitted sender) Received: from [216.139.236.26] (HELO sam.nabble.com) (216.139.236.26) by apache.org (qpsmtpd/0.29) with ESMTP; Thu, 20 Feb 2014 07:25:29 +0000 Received: from joe.nabble.com ([192.168.236.139]) by sam.nabble.com with esmtp (Exim 4.72) (envelope-from ) id 1WGO0K-0004mZ-GJ for users@activemq.apache.org; Wed, 19 Feb 2014 23:25:08 -0800 Date: Wed, 19 Feb 2014 23:25:08 -0800 (PST) From: xabhi To: users@activemq.apache.org Message-ID: <1392881108477-4678185.post@n4.nabble.com> In-Reply-To: References: <1392277409660-4677915.post@n4.nabble.com> <1392391176067-4677981.post@n4.nabble.com> <839558BA-14BF-47C5-A14A-8DA6AA0FBC64@gmail.com> <1392620476330-4678030.post@n4.nabble.com> Subject: Re: Slow KahaDB access MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Virus-Checked: Checked by ClamAV on apache.org Hi, I have few more queries: 1. IIUC, If there is only one producer sending persistent messages, then journal writes will happen for every message and Slow KahaDB access logging will be done for every message. 2. In what cases does "Slow KahaDB access: Journal read took " will logged? In which cases a journal read operation takes place? 3. Does LevelDB also have a similar kind of Slow file system access logging? If not then why it is dropped? Thanks, Abhi -- View this message in context: http://activemq.2283324.n4.nabble.com/Slow-KahaDB-access-tp4677915p4678185.html Sent from the ActiveMQ - User mailing list archive at Nabble.com.