From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christoph Raible Subject: kernel errors, timeouts and qemu-img usage Date: Tue, 03 May 2011 13:50:44 +0200 Message-ID: <4DBFEC14.1040102@science-computing.de> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII; format=flowed Content-Transfer-Encoding: 7BIT Return-path: Received: from smtp2.belwue.de ([129.143.2.15]:55740 "EHLO smtp2.belwue.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752520Ab1ECLur convert rfc822-to-8bit (ORCPT ); Tue, 3 May 2011 07:50:47 -0400 Received: from mx3.science-computing.de (mx3.science-computing.de [193.197.16.20]) by smtp2.belwue.de with ESMTP id p43Bojp4006257 for ; Tue, 3 May 2011 13:50:45 +0200 (MEST) env-from (prvs=097125fec=c.raible@science-computing.de) Received: from localhost (localhost [127.0.0.1]) by scmail.science-computing.de (Postfix) with ESMTP id E3A65AC002 for ; Tue, 3 May 2011 13:50:44 +0200 (CEST) Received: from scmail.science-computing.de ([127.0.0.1]) by localhost (guinesstest.science-computing.de [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id rmZ1Z4hZloKN for ; Tue, 3 May 2011 13:50:44 +0200 (CEST) Received: from nerva.science-computing.de (nerva.science-computing.de [10.10.16.94]) by scmail.science-computing.de (Postfix) with ESMTP id 55461AC001 for ; Tue, 3 May 2011 13:50:44 +0200 (CEST) Received: from [127.0.0.1] (localhost [127.0.0.1]) by nerva.science-computing.de (Postfix) with ESMTP id 43BA7A3424 for ; Tue, 3 May 2011 13:50:44 +0200 (CEST) Sender: ceph-devel-owner@vger.kernel.org List-ID: To: ceph-devel@vger.kernel.org Hi @all, I got some errors after compiling an configuring ceph on Scientific Linux 6. ( This works all fine with no errors) First of all I want to explain my Systems: Server0-3: - Scientific Linux 6: - Self compiled Kernel 2.6.38.4 from Kernel.org with ceph-modules - 4 partitions: - / <--- 20 GB - ext4 - /srv/cloud <--- 20 GB - ext4 - /dev/sda5 <--- 1 GB - ext4 ceph journaling system - /dev sda6 <--- 50 GB - ext4 ceph fs mounted to /mnt/data I didn't use brtfs, because ext4 is an requirement of my professor (I'm writing my bachelor thesis) My ceph.conf: http://pastebin.com/vdwfHNy3 - 3 OSD - 2 MDS - 3 Monitors --------------------------- Now to my errors I got. First I alwas get on ceph -w following "error": "[WRN] message from mon2 was stamped 12.271440s in the future clocks not synchronized" But i have synchronized my clocks 1 min befor with the same ntp-server.. ---------------------------- The second error is, that I can't create / start an qemu-image on the ceph-filesystem. I want to start a kvm virtual machine with the virt-manager. I create an image with "qemu-img create -f qcow2 Platte-qcow2.img 10G" When I chose those image an want to start a virtual machine with that image. The virtual machine never starts. It hangs on look for the "harddisk" Creating an Image with virt-manager doesn't work. There is after 2-3 minutes a timout and I have to kill the virt-manager job. Are there some experiences with this? ----------------------------- The third error I got is the following shown in the /var/log/messages file: http://pastebin.com/dnwVRf5F Are those timeouts normal? ----------------------------- The last error I got for today is the following: http://pastebin.com/UmrCRuhq This happend when I was creating a dummy file with: dd if=/dev/zero of=meineDatei count=5000000 I hope it's not too much errors in one message, but I want to show them all in one email for the better look if depending to each other ;) Thanks for you help. With best regards, Christoph Raible -- Vorstand/Board of Management: Dr. Bernd Finkbeiner, Dr. Roland Niemeier, Dr. Arno Steitz, Dr. Ingrid Zech Vorsitzender des Aufsichtsrats/ Chairman of the Supervisory Board: Philippe Miltin Sitz/Registered Office: Tuebingen Registergericht/Registration Court: Stuttgart Registernummer/Commercial Register No.: HRB 382196