From patchwork Wed Nov 2 12:16:46 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Prasanna Kumar Kalever X-Patchwork-Id: 690377 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from lists.gnu.org (lists.gnu.org [208.118.235.17]) (using TLSv1 with cipher AES256-SHA (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3t86ZC5hx7z9vDn for ; Wed, 2 Nov 2016 23:18:11 +1100 (AEDT) Received: from localhost ([::1]:54915 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c1uUa-000218-NU for incoming@patchwork.ozlabs.org; Wed, 02 Nov 2016 08:18:08 -0400 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41769) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1c1uTR-0001L7-BQ for qemu-devel@nongnu.org; Wed, 02 Nov 2016 08:16:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1c1uTN-0000hv-CQ for qemu-devel@nongnu.org; Wed, 02 Nov 2016 08:16:57 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54894) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1c1uTN-0000hn-4g for qemu-devel@nongnu.org; Wed, 02 Nov 2016 08:16:53 -0400 Received: from int-mx14.intmail.prod.int.phx2.redhat.com (int-mx14.intmail.prod.int.phx2.redhat.com [10.5.11.27]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 570D74F65C for ; Wed, 2 Nov 2016 12:16:52 +0000 (UTC) Received: from dhcp-0-155.blr.redhat.com (dhcp-0-155.blr.redhat.com [10.70.1.155]) by int-mx14.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id uA2CGni6010243; Wed, 2 Nov 2016 08:16:50 -0400 From: Prasanna Kumar Kalever To: qemu-devel@nongnu.org Date: Wed, 2 Nov 2016 17:46:46 +0530 Message-Id: <1478089006-24706-1-git-send-email-prasanna.kalever@redhat.com> X-Scanned-By: MIMEDefang 2.68 on 10.5.11.27 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.26]); Wed, 02 Nov 2016 12:16:52 +0000 (UTC) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.2.x-3.x [generic] X-Received-From: 209.132.183.28 Subject: [Qemu-devel] [PATCH v2 1/1] qemu-doc: update gluster protocol usage guide X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Prasanna Kumar Kalever , jcody@redhat.com, vbellur@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" Document: 1. The new debug and logfile options with their usages 2. New json format and its usage and 3. update "GlusterFS, Device URL Syntax" section in "Invocation" Signed-off-by: Prasanna Kumar Kalever --- v2: Address review comments by Eric Blake on v1 Mostly grammar related changes, formating for better readability and updated commit message v1: Initial commit --- qemu-doc.texi | 59 +++++++++++++++++++++++++++++++++++++++++++-------------- qemu-options.hx | 25 ++++++++++++++++++++++-- 2 files changed, 68 insertions(+), 16 deletions(-) diff --git a/qemu-doc.texi b/qemu-doc.texi index 023c140..02cb39d 100644 --- a/qemu-doc.texi +++ b/qemu-doc.texi @@ -1041,35 +1041,55 @@ GlusterFS is an user space distributed file system. You can boot from the GlusterFS disk image with the command: @example -qemu-system-x86_64 -drive file=gluster[+@var{transport}]://[@var{server}[:@var{port}]]/@var{volname}/@var{image}[?socket=...] +URI: +qemu-system-x86_64 -drive file=gluster[+@var{type}]://[@var{host}[:@var{port}]]/@var{volume}/@var{path} + [?socket=...][,file.debug=9][,file.logfile=...] + +JSON: +qemu-system-x86_64 'json:@{"driver":"qcow2", + "file":@{"driver":"gluster", + "volume":"testvol","path":"a.img","debug":9,"logfile":"...", + "server":[@{"type":"tcp","host":"...","port":"..."@}, + @{"type":"unix","socket":"..."@}]@}@}' @end example @var{gluster} is the protocol. -@var{transport} specifies the transport type used to connect to gluster +@var{type} specifies the transport type used to connect to gluster management daemon (glusterd). Valid transport types are -tcp, unix and rdma. If a transport type isn't specified, then tcp -type is assumed. +tcp and unix. In the URI form, if a transport type isn't specified, +then tcp type is assumed. -@var{server} specifies the server where the volume file specification for -the given volume resides. This can be either hostname, ipv4 address -or ipv6 address. ipv6 address needs to be within square brackets [ ]. -If transport type is unix, then @var{server} field should not be specified. +@var{host} specifies the server where the volume file specification for +the given volume resides. This can be either a hostname or an ipv4 address. +If transport type is unix, then @var{host} field should not be specified. Instead @var{socket} field needs to be populated with the path to unix domain socket. @var{port} is the port number on which glusterd is listening. This is optional -and if not specified, QEMU will send 0 which will make gluster to use the -default port. If the transport type is unix, then @var{port} should not be -specified. +and if not specified, it defaults to port 24007. If the transport type is unix, +then @var{port} should not be specified. + +@var{volume} is the name of the gluster volume which contains the disk image. + +@var{path} is the path to the actual disk image that resides on gluster volume. + +@var{debug} is the logging level of the gluster protocol driver. Debug levels +are 0-9, with 9 being the most verbose, and 0 representing no debugging output. +The default level is 4. The current logging levels defined in the gluster source +are 0 - None, 1 - Emergency, 2 - Alert, 3 - Critical, 4 - Error, 5 - Warning, +6 - Notice, 7 - Info, 8 - Debug, 9 - Trace + +@var{logfile} is a commandline option to mention log file path which helps in +logging to the specified file and also help in persisting the gfapi logs. The +default is stderr. + -@var{volname} is the name of the gluster volume which contains the disk image. -@var{image} is the path to the actual disk image that resides on gluster volume. You can create a GlusterFS disk image with the command: @example -qemu-img create gluster://@var{server}/@var{volname}/@var{image} @var{size} +qemu-img create gluster://@var{host}/@var{volume}/@var{path} @var{size} @end example Examples @@ -1082,6 +1102,17 @@ qemu-system-x86_64 -drive file=gluster+tcp://[1:2:3:4:5:6:7:8]:24007/testvol/dir qemu-system-x86_64 -drive file=gluster+tcp://server.domain.com:24007/testvol/dir/a.img qemu-system-x86_64 -drive file=gluster+unix:///testvol/dir/a.img?socket=/tmp/glusterd.socket qemu-system-x86_64 -drive file=gluster+rdma://1.2.3.4:24007/testvol/a.img +qemu-system-x86_64 -drive file=gluster://1.2.3.4/testvol/a.img,file.debug=9,file.logfile=/var/log/qemu-gluster.log +qemu-system-x86_64 'json:@{"driver":"qcow2", + "file":@{"driver":"gluster", + "volume":"testvol","path":"a.img", + "debug":9,"logfile":"/var/log/qemu-gluster.log", + "server":[@{"type":"tcp","host":"1.2.3.4","port":24007@}, + @{"type":"unix","socket":"/var/run/glusterd.socket"@}]@}@}' +qemu-system-x86_64 -drive driver=qcow2,file.driver=gluster,file.volume=testvol,file.path=/path/a.img, + file.debug=9,file.logfile=/var/log/qemu-gluster.log, + file.server.0.type=tcp,file.server.0.host=1.2.3.4,file.server.0.port=24007, + file.server.1.type=unix,file.server.1.socket=/var/run/glusterd.socket @end example @node disk_images_ssh diff --git a/qemu-options.hx b/qemu-options.hx index b1fbdb0..94f6b3a 100644 --- a/qemu-options.hx +++ b/qemu-options.hx @@ -2595,13 +2595,34 @@ TCP, Unix Domain Sockets and RDMA transport protocols. Syntax for specifying a VM disk image on GlusterFS volume is @example -gluster[+transport]://[server[:port]]/volname/image[?socket=...] + +URI: +gluster[+type]://[host[:port]]/volume/path[?socket=...][,debug=N][,logfile=...] + +JSON: +'json:@{"driver":"qcow2","file":@{"driver":"gluster","volume":"testvol","path":"a.img","debug":N,"logfile":"...", +@ "server":[@{"type":"tcp","host":"...","port":"..."@}, +@ @{"type":"unix","socket":"..."@}]@}@}' @end example Example @example -qemu-system-x86_64 --drive file=gluster://192.0.2.1/testvol/a.img +URI: +qemu-system-x86_64 --drive file=gluster://192.0.2.1/testvol/a.img, +@ file.debug=9,file.logfile=/var/log/qemu-gluster.log + +JSON: +qemu-system-x86_64 'json:@{"driver":"qcow2", +@ "file":@{"driver":"gluster", +@ "volume":"testvol","path":"a.img", +@ "debug":9,"logfile":"/var/log/qemu-gluster.log", +@ "server":[@{"type":"tcp","host":"1.2.3.4","port":24007@}, +@ @{"type":"unix","socket":"/var/run/glusterd.socket"@}]@}@}' +qemu-system-x86_64 -drive driver=qcow2,file.driver=gluster,file.volume=testvol,file.path=/path/a.img, +@ file.debug=9,file.logfile=/var/log/qemu-gluster.log, +@ file.server.0.type=tcp,file.server.0.host=1.2.3.4,file.server.0.port=24007, +@ file.server.1.type=unix,file.server.1.socket=/var/run/glusterd.socket @end example See also @url{http://www.gluster.org}.