From owner-freebsd-questions@FreeBSD.ORG Tue May 20 14:43:14 2008 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 9239F1065671 for ; Tue, 20 May 2008 14:43:14 +0000 (UTC) (envelope-from alandgilmour@gmail.com) Received: from fg-out-1718.google.com (fg-out-1718.google.com [72.14.220.152]) by mx1.freebsd.org (Postfix) with ESMTP id 28AD88FC1E for ; Tue, 20 May 2008 14:43:13 +0000 (UTC) (envelope-from alandgilmour@gmail.com) Received: by fg-out-1718.google.com with SMTP id l26so2792596fgb.35 for ; Tue, 20 May 2008 07:43:12 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; bh=TRGUoQib4euaLeoTpgBmPpy5rXbYd+5BFpBK/9wpuBA=; b=uOmd0qerIpKHukHlwAWZfqRuzY1NjULGshBLOFYadhd4SfyVX+Kqvw8XyUuTVWhlcjczd4iufQ4aSPoHZQrseUptZs+OamiKg4XSqlnV+6A0ty0XO0s/LbAYURLEPOpqU6jvafpL4knB0OElqAA9IQueWA8jG96iZaFQLDGmCEA= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:to:subject:mime-version:content-type:content-transfer-encoding:content-disposition; b=N6cOI+/iN0/FobiIxAQe+khnMLfD5CQo/XPRpSFQFecQjPzso0x9RXJlPd4tIcVzO999DLFE6PGTixY/pDZ8CHgh5fzKF38qtntpUygSQ1AaDOkry9RqBWS6Sk5VsTlcayQ9AVFPsSQ4licJKJzl+/hZw3beRDoDoRaWPcyjhHI= Received: by 10.78.199.8 with SMTP id w8mr2398699huf.30.1211293043796; Tue, 20 May 2008 07:17:23 -0700 (PDT) Received: by 10.78.133.19 with HTTP; Tue, 20 May 2008 07:17:23 -0700 (PDT) Message-ID: <38f284ee0805200717l7008e18fud9631bf80839ceb1@mail.gmail.com> Date: Tue, 20 May 2008 15:17:23 +0100 From: "Alan Gilmour" To: freebsd-questions@freebsd.org MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline Subject: Server crashing, no explanations X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 May 2008 14:43:14 -0000 Hey all, We have recently been getting a lot of traffic to one of our sites. The CPU is consistently during busy periods using 100% utilisation. When this happens we have approx 150 apache threads, and the loads goes way above 15. However recently the server has been auto-restarting (when under heavy load) with no explanation in any logs. I've checked the console log, messages, db logs e.t.c. but no mention of anything wrong. Brief server summary : FreeBSD 6.3-STABLE #0: CPU: Intel(R) Xeon(TM) CPU 2.80GHz (2800.11-MHz 686-class CPU) Logical CPUs per core: 2 real memory = 17716740096 (16896 MB) avail memory = 16837763072 (16057 MB) FreeBSD/SMP: Multiprocessor System Detected: 4 CPUs We tried installing mbmon and lmmon and healthd, but none seem to work. Anyone got any suggestions for other things we can try to detect why the server is failing? or other ways to check things like CPU temp and memory status? Cheers Alan