On Mon, May 2, 2016 at 8:39 PM, Gianluca Cecchi <gianluca.cec...@gmail.com> wrote:
> On Mon, May 2, 2016 at 11:14 AM, Simone Tiraboschi <stira...@redhat.com> > wrote: > >> >> >>> >> >>> Can you please check the entropy value on your host? >> >>> cat /proc/sys/kernel/random/entropy_avail >> >>> >> >> >> >> I have not at hand now the server. I'll check soon and report >> >> Do you mean entropy of the physical server that will operate as >> hypervisor? >> >> On the hypervisor >> >> > That's a good question. Simone - do you know if we start the guest with >> > virtio-rng? >> >> AFAIK we are not. >> >> > On the only existing hypervisor, just after booting and exiting global > maintenance, causing hosted engine to start, I have > > [root@ovirt01 ~]# uptime > 20:34:17 up 6 min, 1 user, load average: 0.23, 0.20, 0.11 > > [root@ovirt01 ~]# cat /proc/sys/kernel/random/entropy_avail > 3084 > > BTW on the self hosted engine VM: > [root@ovirt ~]# uptime > 18:35:33 up 4 min, 1 user, load average: 0.06, 0.25, 0.13 > > [root@ovirt ~]# cat /proc/sys/kernel/random/entropy_avail > 14 > > On the hypervisor: > [root@ovirt01 ~]# ps -ef | grep [q]emu | grep virtio-rng > [root@ovirt01 ~]# > > On engine VM: > [root@ovirt ~]# ll /dev/hwrng > ls: cannot access /dev/hwrng: No such file or directory > [root@ovirt ~]# > > [root@ovirt ~]# lsmod | grep virtio_rng > [root@ovirt ~]# > > May I change anything so that engine VM has virtio-rng enabled? > > Gianluca > > > I verified very slow login time in webadmin after welcome page, with my configuration that is for now based on /etc/hosts. After reading a previous post, and having after about 30 minutes only 114 as entropy in hosted engine vm, I made this in engine VM: yum install haveged systemctl enable haveged put host in global maintenance shutdown engine VM exit from maintenance engine VM starts and immediately I have: [root@ovirt ~]# uptime 19:05:10 up 0 min, 1 user, load average: 0.68, 0.20, 0.07 [root@ovirt ~]# cat /proc/sys/kernel/random/entropy_avail 1369 And login in web admin page now almost immediate.... Inside the thread I read: http://lists.ovirt.org/pipermail/users/2016-April/038805.html it wasn't clear if I can edit the engine VM in webadmin (or other mean) and enable the random generator option or if the haveged way is the one to go with in case of self hosted engine.... Is there a list of what I can change (if any) and what not for the engine VM? For example I would like to change the time zone that is GMT now (I think inherited from the OVF of the appliance?) Thanks, Gianluca
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