Re: [Trans] Long Poll

[Rasmus Dahlberg <[e-mail]>]

Hi,

You could fetch the latest STH periodically based on how often a log can produce
it: see MMD and STH frequency in Section 4.1.  For example, checking once per
hour makes sense if a log's MMD is 24 hours and its STH frequency is 24.  If you
are looking to fetch STHs today, i.e., from a log that is not CT/bis compliant,
you could learn how often STHs are normally produced by some initial polling
tests. Another option is to simply pick an interval that suits your needs,
preferably without being to aggressive based on how often STHs are produced.

On the topic of STH frequency, have anyone else noticed that Google's Icarus,
Pilot, Rocketeer and Skydiver logs switched from one hour STH interarrival times
to nearly instant updates somewhere around November 2018?  Try fetching one
hundred STHs back-to-back: most tree sizes will be unique.

If anyone knows what motivated this change I would happily be pointed in the
right direction. As many of you know, such high STH frequencies can cause a lot
of friction while experimenting and deploying various forms of gossip/auditing.

/R

On Thu, Mar 21, 2019 at 10:14:58PM +0300, Evgeny wrote:
> On Thu, Mar 21, 2019 at 7:41 PM, Evgeny <[e-mail]> wrote:
> > Like while(0) {... sleep(1)}?
> 
> Oops, it should have been while(1) of course :)
> 
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