similar to: Remus' Network Buffering

Hello everyone, I''ve managed to configure and start Remus. However, it works only while the protected server is not loaded. As soon as I start a memory-intensive server application, the stream of Remus messages stops, leaving me with an error message. I think the message is not always the same, but here is what I''ve got from the last run: PROF: suspending at

This patch series adds support for network buffering in the Remus codebase in libxl. Changes in V3: [1/5] Fix redundant checks in configure scripts (based on Ian Campbell''s suggestions) [2/5] Introduce locking in the script, during IFB setup. Add xenstore paths used by netbuf scripts to xenstore-paths.markdown [3/5] Hotplug scripts setup/teardown invocations are now

I noticed recently that there is no real easy way to get the kernel driver for blktap working in mainline. I''ve pulled down the source from Daniel Stodden''s linux git tree on xensource, but it looks like it''s for debian and I''m running Fedora 14, so I''m trying to sort it out. I run the 3.1.x kernel and don''t want to go back to the 2.6.32 that

Hi, I''m doing my master research and I need to adapt remus code. Now... I wanna get the checkpoint size (memory + disk) on each period. Does someone know what function does this? I think some *fd *object''s function in remus code could just get the memory size. Does someone help me? Thanks _______________________________________________ Xen-devel mailing list

Hi Sriram, Once again, thanks for your timely reply.... I tested as your suggesstion and i found that i don''t have any file in the location "/var/lib/xen" [root@globushead xen]# pwd /var/lib/xen [root@globushead xen]# ls -ll total 0 Further i tested the command "xm save " and results as follows Terminal 1: xm save -c TestVM1 TestVM1.chkpt

Hi All, I want to test REMUS over XEN, I would like to know the basic steps to be followed . I have installed xen4.1 on debian and i didn''t find any command related to remus, is there any steps which i have to carry out? _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

Hi, The following patch series fixes hangup after creating checkpoint on Xen. The Linux Xen guest can be saved the state to restore later, and also created snapshot like checkpoint via the hypervisor. But, when the snapshot is created for the PV guest, it will hangup. We added ''PMSG_CANCEL'' message and ''cancel'' handler in dev_pm_ops struct in the pm-linux

I noted a possible problem restoring a machine. In xc_domain_restore (xc_domain_restore.c) if it''s not the last checkpoint we set O_NONBLOCK flag (search for fcntl) that we can call pagebuf_get or just load other pages (see following "goto loadpages;" line). Now we could ending up calling xc_tmem_restore/xc_tmem_restore_extra (xc_tmem.c) which call read_extract (xc_private.c)

Dear List, i''m experimenting with remus with the following setup. dom0: - Debian Squeeze - Jeremy''s 2.6.38.48 kernel - xen 4.1.2 recompiled from sid - DRBD for block device backend domU - Debian Squeeze Remus is working fine unless i try to give more than 1 core to the domU. Here''s the error from remus when i''m trying to enable it for an SMP domU:

What are the outstanding things to do before we think we can start on the 4.2 -rc''s? Does anyone have a timetable in mind? hypervisor: * ??? - Keir, Tim, Jan? tools: * libxl stable API -- we would like 4.2 to define a stable API which downstream''s can start to rely on not changing. Aspects of this are: * event handling (IanJ working

Hello, I have been playing around with Remus on Xen 4.0.1, attempting to fail-over for an HVM domU. I''ve run into some problems that I think could be related to tapdisk2 and its interaction with how one sets up Remus disk replication in the domU config file. A few things I''ve noticed: -The tap:remus:backupHostIP:port|aio:imagePath notation does not work for me, although this

Hardware: Dell Poweredge R510 (32G ram, 8 CPU- Xeon) 64bit - xen 4.0.1 stable 64bit - 2.6.32.18 dom0 (.config attached) running Ubuntu 10.04 32 bit - 2.6.18.8 domU (.config attached) running ubuntu 8.04 domU has 3 tap2 disks, on lvm snapshots. domU has 2G mem, 2 VCPU workload on domU - ssh + top running, destroy domain -- This works . But, If i run a heavier workload say postgres db (just

Hi Ian,  Can you please backport the following Remus related patches: http://xenbits.xen.org/hg/xen-unstable.hg/rev/13ec53a59a42 http://xenbits.xen.org/hg/xen-unstable.hg/rev/29d81623dc14 http://xenbits.xen.org/hg/xen-unstable.hg/rev/b04e57ec4671 http://xenbits.xen.org/hg/xen-unstable.hg/rev/62c0dfc9efbf http://xenbits.xen.org/hg/xen-unstable.hg/rev/ecff559bf474

Hello, I''m using Xen (installed from source - "hg clone http://xenbits.xen.org/xen-4.0-testing.hg") on Debian Lenny. Dom0 kernel is 2.6.32-bpo.5-xen-686. Until now I have successfully ran the Lucid Ubuntu as domU guest, defining disks as (and also as file:): disk = [''tap2:aio:/home/xen/domains/lucid/disk.img,xvda1,w'',

Following discussion, and a bit of slip to allow better contributions from those who''ve been away for the Chinese New Year, the plan for 4.1 now looks like this. We intend to go into code freeze at the end of the week, after which patches even for bugfixes will be much harder to get into the tree. We are here: | Feature code freeze | | Bugfixes are allowed provided they are

I tried to create a domain with drbd based disk as the backend "drbd:<resourcename>,..," and I get a "unknown disk type" error. I can spin out a patch if needed, but just wanted to know apriori if this was left out for any specific reason. shriram _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com

Hi, i already tried to ask this and did not obtain any answer. Is remus is supported in Opensuse Linux actually ? Regards _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users

hi xen cracks, i know that this formum might be the wrong one for my question but maybe the last and/or only one what can give me my questions answered. i know how to setup and run a xen infrastructure, i have several server in production. the new thing is, that i started to use the debian squeeze, cause of the native suport of remus (kernel support), as everyone say: hardware ******* hp dl

Hello, we are using debian, xen 3.x and a iscsi-storage with ext4 as filesystem. Heartbeat is used for xen-ha. Now we like to change to xen 4 and remus. The iscsi SAN is available on active-Dom0 and backup-Dom0. I don´t have to use the disk buffering, as I understand remus right, because the file system on both machines is the same. With ext4 we don´t had problems at the xen3-Cluster on

Hi folks, I have OpenVPN (respect for it developers) running on my FW. Is has two external NICs and on internal everything is fine, except I want OpenVPN (UDP port 1194) going not via default route/network interface. I use such commands: iptables -t mangle -D POSTROUTING -o eth0 -p udp --dport 1194 -j MARK --set-mark 0x990 ip rule add fwmark 0x990