Commit Graph

11 Commits

Author SHA1 Message Date
Andrea Maria Piana 4b0daeb47b Move services to status-node
Move all the services to status-node, as some of them were there, some
of them were in the geth backend and scattered around.
2021-07-20 10:57:38 +02:00
Pedro Pombeiro 6537cae606 Nimbus node support 2020-01-20 13:15:17 +01:00
Pedro Pombeiro c8a911ebd1 Use goimports instead of gofmt 2020-01-06 10:17:23 +01:00
Dmitry ae7faece88 Sanity validate ntp response 2018-06-08 19:10:29 +03:00
Dmitry Shulyak bc14e6faee Tolerate only one error during ntp sync
Previously we were doing 5 concurrent requests, thus it was
safe to tolerate 2 errors. With 4 it doesn't make sense to use
only 2 responses, because even if 1 of them is skewed - we will set
incorrect time.
2018-05-24 13:14:02 +03:00
Adrià Cidre 888ad10b26
[#969] Decrease NTP sync period after first success (#977) 2018-05-22 17:38:38 +02:00
Dmitry Shulyak ee60b7e727 Fix mid computation in timesource
Additionally improved test suite
2018-05-15 19:34:37 +03:00
Ivan Daniluk bd68fa15c9 Use different pool hostnames for NTP timesource (#939) (#952)
* Use different pool hostnames for NTP timesource

* Make govet happy

* Add check for empty servers list
2018-05-15 17:10:51 +03:00
Dmitry Shulyak 6c2a8ef1f9
Define shorter timeout for ntp calls (2s) and tolerate failures (#911)
* Define shorter timeout for ntp calls (2s) and tolerate failures

* Use allowed failures instead of tolerated errorss
2018-05-09 08:10:48 +03:00
Dmitry Shulyak 7aa508765e Set timesource from config (#915) 2018-05-08 13:38:54 +03:00
Dmitry Shulyak 707221954f
Make whisper tolerant to local time skews (#864)
This change adds adds an ability to use different source of time for whisper:

when envelope is created it is used to set expiry
to track when envelope needs to be expired
This time is then used to check validity of the envelope when it is received. Currently If we receive an envelope that is sent from future - peer will get disconnected. If envelope that was received has an expiry less then now it will be simply dropped, if expiry is less than now + 10*2 seconds peer will get dropped.

So, it is clear that whisper depends on time. And any time we get a skew with peers that is > 20s reliability will be grealy reduced.

In this change another source of time for whisper will be used. This time source will use ntp servers from pool.ntp.org to compute offset. When whisper queries time - this offset will be added/substracted from current time.

Query is executed every 2 mins, queries 5 different servers, cut offs min and max and the computes mean value. pool.ntp.org is resolved to different servers and according to documentation you will rarely hit the same.

Closes: #687
2018-05-04 11:23:38 +03:00