Re: [ovirt-users] Slow first opening web portal when the ovirt-engine.service is restarted

Wow. I have installed and enabled the service on Hosted Engine VM: # yum -y install haveged # service haveged start # systemctl enable haveged.service # service haveged status Redirecting to /bin/systemctl status haveged.service ● haveged.service - Entropy Daemon based on the HAVEGE algorithm Loaded: loaded (/usr/lib/systemd/system/haveged.service; enabled; vendor preset: disabled) Active: active (running) since Mon 2016-10-03 12:56:24 MSK; 2min 12s ago Docs: man:haveged(8) http://www.issihosts.com/haveged/ Main PID: 5304 (haveged) CGroup: /system.slice/haveged.service └─5304 /usr/sbin/haveged -w 1024 -v 1 --Foreground Oct 03 12:56:24 KOM-AD01-OVIRT1 systemd[1]: Started Entropy Daemon based on the HAVEGE algorithm. Oct 03 12:56:24 KOM-AD01-OVIRT1 systemd[1]: Starting Entropy Daemon based on the HAVEGE algorithm... Oct 03 12:56:24 KOM-AD01-OVIRT1 haveged[5304]: haveged: ver: 1.9.1; arch: x86; vend: GenuineIntel; build: (gcc 4.8.2 ITV); collect: 128K Oct 03 12:56:24 KOM-AD01-OVIRT1 haveged[5304]: haveged: cpu: (L4 VC); data: 32K (L2 L4 V); inst: 32K (L2 L4 V); idx: 21/40; sz: 32709/60538 Oct 03 12:56:24 KOM-AD01-OVIRT1 haveged[5304]: haveged: tot tests(BA8): A:1/1 B:1/1 continuous tests(B): last entropy estimate 8.00013 Oct 03 12:56:24 KOM-AD01-OVIRT1 haveged[5304]: haveged: fills: 0, generated: 0 And now after restarting the ovirt-engine.service, first open the web portal pages is instantaneous! It works. Thank you. But now the question arises, in what cases can be a helpful ovirt-warmup.service (https://github.com/geertj/ ravstack/blob/master/share/ovirt-warmup.service) ?

03.10.2016, 12:32, "Sandro Bonazzola" <sbonazzo(a)redhat.com&gt;: > This looks like not enough entropy on the host / guest running ovirt-engine. > If you're on Hosted Engine I suggest to install haveged (in EPEL repo) and run it to ensure enough entropy is available for the VM. > Adding Simone.