From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:45063) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aDoPA-000420-Hq for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:09:13 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1aDoP7-0006MV-BJ for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:09:12 -0500 Received: from [59.151.112.132] (port=54632 helo=heian.cn.fujitsu.com) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1aDoP6-0006La-Kk for qemu-devel@nongnu.org; Tue, 29 Dec 2015 02:09:09 -0500 References: <1450780978-19123-1-git-send-email-zhangchen.fnst@cn.fujitsu.com> <568228BF.9010008@cn.fujitsu.com> <56822F07.6090607@redhat.com> From: Zhang Chen Message-ID: <5682316E.4000701@cn.fujitsu.com> Date: Tue, 29 Dec 2015 15:08:30 +0800 MIME-Version: 1.0 In-Reply-To: <56822F07.6090607@redhat.com> Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [RFC PATCH v2 00/10] Add colo-proxy based on netfilter List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Jason Wang , qemu devel , Stefan Hajnoczi Cc: zhanghailiang , Li Zhijian , Gui jianfeng , "eddie.dong" , "Dr. David Alan Gilbert" , Huang peng , Gong lei , jan.kiszka@siemens.com, Yang Hongyang On 12/29/2015 02:58 PM, Jason Wang wrote: > > On 12/29/2015 02:31 PM, Zhang Chen wrote: >> Hi~ >> Just a small ping... >> No news for a week. >> Colo proxy is a part of COLO project, we need review and comments. >> >> >> Thanks >> zhangchen > Hi, will find sometime to review this this week. > > Thanks Thanks very much for your help~~ >> >> On 12/22/2015 06:42 PM, Zhang Chen wrote: >>> From: zhangchen >>> >>> Hi,all >>> >>> This patch add an colo-proxy object, COLO-Proxy is a part of COLO, >>> based on qemu netfilter and it's a plugin for qemu netfilter. the >>> function >>> keep Secondary VM connect normal to Primary VM and compare packets >>> sent by PVM to sent by SVM.if the packet difference,notify COLO do >>> checkpoint and send all primary packet has queued. >>> >>> You can also get the series from: >>> >>> https://github.com/zhangckid/qemu/tree/colo-v2.2-periodic-mode-with-colo-proxyV2 >>> >>> >>> Usage: >>> >>> primary: >>> -netdev tap,id=bn0 -device e1000,netdev=bn0 >>> -object >>> colo-proxy,id=f0,netdev=bn0,queue=all,mode=primary,addr=host:port >>> >>> secondary: >>> -netdev tap,id=bn0 -device e1000,netdev=bn0 >>> -object >>> colo-proxy,id=f0,netdev=bn0,queue=all,mode=secondary,addr=host:port >>> >>> NOTE: >>> queue must set "all". See enum NetFilterDirection for detail. >>> colo-proxy need queue all packets >>> colo-proxy V2 just can compare ip packet >>> >>> >>> ## Background >>> >>> COLO FT/HA (COarse-grain LOck-stepping Virtual Machines for Non-stop >>> Service) >>> project is a high availability solution. Both Primary VM (PVM) and >>> Secondary VM >>> (SVM) run in parallel. They receive the same request from client, and >>> generate >>> responses in parallel too. If the response packets from PVM and SVM are >>> identical, they are released immediately. Otherwise, a VM checkpoint (on >>> demand)is conducted. >>> >>> Paper: >>> http://www.socc2013.org/home/program/a3-dong.pdf?attredirects=0 >>> >>> COLO on Xen: >>> http://wiki.xen.org/wiki/COLO_-_Coarse_Grain_Lock_Stepping >>> >>> COLO on Qemu/KVM: >>> http://wiki.qemu.org/Features/COLO >>> >>> By the needs of capturing response packets from PVM and SVM and >>> finding out >>> whether they are identical, we introduce a new module to qemu networking >>> called colo-proxy. >>> >>> V2: >>> rebase colo-proxy with qemu-colo-v2.2-periodic-mode >>> fix dave's comments >>> fix wency's comments >>> fix zhanghailiang's comments >>> >>> v1: >>> initial patch. >>> >>> >>> >>> zhangchen (10): >>> Init colo-proxy object based on netfilter >>> Jhash: add linux kernel jhashtable in qemu >>> Colo-proxy: add colo-proxy framework >>> Colo-proxy: add data structure and jhash func >>> net/colo-proxy: Add colo interface to use proxy >>> net/colo-proxy: add socket used by forward func >>> net/colo-proxy: Add packet enqueue & handle func >>> net/colo-proxy: Handle packet and connection >>> net/colo-proxy: Compare pri pkt to sec pkt >>> net/colo-proxy: Colo-proxy do checkpoint and clear >>> >>> include/qemu/jhash.h | 61 ++++ >>> net/Makefile.objs | 1 + >>> net/colo-proxy.c | 939 >>> +++++++++++++++++++++++++++++++++++++++++++++++++++ >>> net/colo-proxy.h | 24 ++ >>> qemu-options.hx | 6 + >>> trace-events | 8 + >>> vl.c | 3 +- >>> 7 files changed, 1041 insertions(+), 1 deletion(-) >>> create mode 100644 include/qemu/jhash.h >>> create mode 100644 net/colo-proxy.c >>> create mode 100644 net/colo-proxy.h >>> > > > . > -- Thanks zhangchen