<div dir="ltr"><br><div class="gmail_extra"><br><div class="gmail_quote">On Mon, May 2, 2016 at 8:39 PM, Gianluca Cecchi <span dir="ltr"><<a href="mailto:gianluca.cecchi@gmail.com" target="_blank">gianluca.cecchi@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><span><div class="gmail_extra"><div class="gmail_quote">On Mon, May 2, 2016 at 11:14 AM, Simone Tiraboschi <span dir="ltr"><<a href="mailto:stirabos@redhat.com" target="_blank">stirabos@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><span><br>
>>><br>
>>> Can you please check the entropy value on your host?<br>
>>> cat /proc/sys/kernel/random/entropy_avail<br>
>>><br>
>><br>
>> I have not at hand now the server. I'll check soon and report<br>
>> Do you mean entropy of the physical server that will operate as hypervisor?<br>
<br>
</span>On the hypervisor<br>
<span><br>
> That's a good question. Simone - do you know if we start the guest with<br>
> virtio-rng?<br>
<br>
</span>AFAIK we are not.<br>
<div><div><br>
</div></div></blockquote></div><br></div></span><div class="gmail_extra">On the only existing hypervisor, just after booting and exiting global maintenance, causing hosted engine to start, I have<br><br>[root@ovirt01 ~]# uptime<br> 20:34:17 up 6 min, 1 user, load average: 0.23, 0.20, 0.11<br><br>[root@ovirt01 ~]# cat /proc/sys/kernel/random/entropy_avail<br>3084<br><br>BTW on the self hosted engine VM:<br>[root@ovirt ~]# uptime<br> 18:35:33 up 4 min, 1 user, load average: 0.06, 0.25, 0.13<br><br>[root@ovirt ~]# cat /proc/sys/kernel/random/entropy_avail<br>14<br><br></div><div class="gmail_extra">On the hypervisor:<br>[root@ovirt01 ~]# ps -ef | grep [q]emu | grep virtio-rng<br>[root@ovirt01 ~]# <br><br></div><div class="gmail_extra">On engine VM:<br>[root@ovirt ~]# ll /dev/hwrng<br>ls: cannot access /dev/hwrng: No such file or directory<br>[root@ovirt ~]# <br><br>[root@ovirt ~]# lsmod | grep virtio_rng<br>[root@ovirt ~]# <br><br></div><div class="gmail_extra">May I change anything so that engine VM has virtio-rng enabled?<span><font color="#888888"><br><br></font></span></div><span><font color="#888888"><div class="gmail_extra">Gianluca<br></div><div class="gmail_extra"><br></div><div class="gmail_extra"><br></div></font></span></div></blockquote><div><br></div><div>I verified very slow login time in webadmin after welcome page, with my configuration that is for now based on /etc/hosts.<br>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:<br><br></div><div>yum install haveged<br></div><div>systemctl enable haveged<br><br></div><div>put host in global maintenance<br></div><div>shutdown engine VM<br></div><div>exit from maintenance<br><br></div><div>engine VM starts and immediately I have:<br><br>[root@ovirt ~]# uptime<br> 19:05:10 up 0 min, 1 user, load average: 0.68, 0.20, 0.07<br><br>[root@ovirt ~]# cat /proc/sys/kernel/random/entropy_avail<br>1369<br><br></div><div>And login in web admin page now almost immediate....<br><br></div><div>Inside the thread I read:<br></div></div><a href="http://lists.ovirt.org/pipermail/users/2016-April/038805.html">http://lists.ovirt.org/pipermail/users/2016-April/038805.html</a><br><br></div><div class="gmail_extra">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....<br></div><div class="gmail_extra">Is there a list of what I can change (if any) and what not for the engine VM?<br></div><div class="gmail_extra">For example I would like to change the time zone that is GMT now (I think inherited from the OVF of the appliance?)<br><br></div><div class="gmail_extra">Thanks,<br></div><div class="gmail_extra">Gianluca<br><br></div></div>