Re: [ovirt-users] heavy webadmin

On Tuesday, April 05, 2016 03:58:37 PM Nicolas Ecarnot wrote: > Le 05/04/2016 14:30, Alexander Wels a écrit : > > > > > > > 2. If you are running hosted engine, make sure you have > > > > > > > enough > > > > > > > entropy, the > > > > > > > login page generates a couple of tokens using secure > > > > > > > random, > > > > > > > which > > > > > > > eats away > > > > > > > at your entropy budget heavily and since hosted engine > > > > > > > is a VM > > > > > > > it is > > > > > > > possible > > > > > > > that you don't have enough entropy. You can check your > > > > > > > entropy > > > > > > > level > > > > > > > with > > > > > > > this: > > > > > > > > > > > > > > cat /proc/sys/kernel/random/entropy_avail > > > > > > > > > > 159 is horrible to be honest, that is most likely the cause > > > > > of your > > > > > problems. Anything below around 300 is bad. > > Alex, > > I checked that on my engines, and the entropy is around 120. > But those are NOT hosted. > > Can you confirm this lack of entropy enduces no slowness on > dedicated > engines? Lack of entropy is what causes super slow login. I creates some tokens on  login that use up entropy. However once you have logged in it re-uses the  token and the entropy should not be an issue after that for the most part. He didn't actually say but I suspect that after the initial minutes wait for  the login, it was not THAT bad after that. Not like what we are seeing with  your system. _______________________________________________ Users mailing list Users(a)ovirt.org