@revtel
I'd be keen for a xcp-ng LTSR also

Hm.. I did a toolstack restart and it still had the high memory usage after, but it has now since dropped..

root 1920 0.2 2.0 108860 39516 ? Ssl Aug16 2:39 /usr/sbin/message-switch --config /etc/message-switch.conf

Perhaps it takes a bit of time to clear it out.

@olivierlambert said in XCP-ng 7.5.0 final is here:

Ah damn! I think you spotted the issue then!

I think that is different to the original problem as there was enough disk space in that instance, but this non-production VM I was using to test doesn't have the space on the source host.

New problem I've come across since doing that failed migration, the message-switch process is now eating approx half of the memory on the server:

[root@host log]# free -m
total used free shared buff/cache available
Mem: 1923 1601 27 12 295 221
Swap: 511 26 485
[root@host log]# ps axuww | grep message
root 1920 0.2 52.4 1094032 1033144 ? Ssl Aug16 2:36 /usr/sbin/message-switch --config /etc/message-switch.conf
root 32669 0.0 0.1 112656 2232 pts/24 S+ 12:43 0:00 grep --color=auto message

Anyone know how to restart that?

Ok migration of W2K8R2 with 6.2 drivers from XCP-ng 7.5 to XCP-ng 7.5 failed with msg:

Storage_Interface.Does_not_exist(_)

It also crashed the VM.

I think this could be related to https://bugs.xenserver.org/browse/XSO-785 as there is only 10GB free on the source storage repository so I don't think I can actually do the migration because of that (it's recommended to have 2x space available to migrate a VM, something that becomes increasingly harder with large VMs!).

ok, I've got one running XS 6.2 drivers I can test although it's got 100GB of disk so will take some time to do. Both ends are XCP-ng 7.5. I'll live migrate it and back with this driver first as a test and then try some others, see how it goes.

Edit: this vm is Win 2008R2 also where as previous which failed was 2K12.

@borzel unfortunately this is a production client server so can't do that easily. The two linux VM's moved over fine. Most of the VM's we have are Linux based also but I might be able to do it with an internal one on a different host but need to see if it can be moved easily as it has multiple network interfaces.

I think the one with the issue I mentioned before had XS7.1 drivers installed.

I had a live migration issue with windows too.

Secondary host running XCP-ng 7.5, primary XS7.1, live-migrated the Win 2K12 VM from primary host to secondary fine, took 14mins. I updated XS7.1 to XCP-ng 7.5 and installed new Dell BIOS on primary host. Migrate back hung at 99%. I left it about 45mins (3-times as long as the original migrate took) and noted it was still sending data between the two.. I wonder if it was stuck in some form of loop.

The logs on src host had this in logs a lot:

Aug 16 13:55:05 xen52 xenopsd-xc: [debug|xen52|37 |Async.VM.migrate_send R:c6ab32165e47|xenops_server] TASK.signal 1305 = ["Pending",0.99]
Aug 16 13:55:05 xen52 xapi: [debug|xen52|389 |org.xen.xapi.xenops.classic events D:333a26fc4942|xenops] Processing event: ["Task","1305"]
Aug 16 13:55:05 xen52 xapi: [debug|xen52|389 |org.xen.xapi.xenops.classic events D:333a26fc4942|xenops] xenops event on Task 1305
Aug 16 13:55:05 xen52 xenopsd-xc: [debug|xen52|37 |Async.VM.migrate_send R:c6ab32165e47|xenops] VM = 66ebe30b-2bd2-ae59-c225-54a625655d52; domid = 2; progress = 99 / 100

I read a bit on Citrix forums and decided to shutdown the VM. Doing so from XCP-ng center didn't work, so I did it from within the VM.

Upon shutdown it seemed to sort itself, but the VM came up as 'paused' on the primary node. This couldn't be resumed. A force restart from XCP-ng center jsut seemed to hang. I tried to cancel the task with xe task-cancel on hard_reboot and it didn't work so did a xe-toolstack-restart and this reset the VM state back to shutdown. It then booted normally...

Now the secondary host was running an old BIOS still with earlier microcode so not sure if it was related to that in anyway..

john