Commit Graph

16 Commits

Author SHA1 Message Date
Jakob Borg
59802c3981
cmd/stdiscosrv, vendor: Remove remnants of golang.org/x/net/context (#4843) 2018-03-27 07:37:34 -04:00
Jakob Borg
916ec63af6 cmd/stdiscosrv: New discovery server (fixes #4618)
This is a new revision of the discovery server. Relevant changes and
non-changes:

- Protocol towards clients is unchanged.

- Recommended large scale design is still to be deployed nehind nginx (I
  tested, and it's still a lot faster at terminating TLS).

- Database backend is leveldb again, only. It scales enough, is easy to
  setup, and we don't need any backend to take care of.

- Server supports replication. This is a simple TCP channel - protect it
  with a firewall when deploying over the internet. (We deploy this within
  the same datacenter, and with firewall.) Any incoming client announces
  are sent over the replication channel(s) to other peer discosrvs.
  Incoming replication changes are applied to the database as if they came
  from clients, but without the TLS/certificate overhead.

- Metrics are exposed using the prometheus library, when enabled.

- The database values and replication protocol is protobuf, because JSON
  was quite CPU intensive when I tried that and benchmarked it.

- The "Retry-After" value for failed lookups gets slowly increased from
  a default of 120 seconds, by 5 seconds for each failed lookup,
  independently by each discosrv. This lowers the query load over time for
  clients that are never seen. The Retry-After maxes out at 3600 after a
  couple of weeks of this increase. The number of failed lookups is
  stored in the database, now and then (avoiding making each lookup a
  database put).

All in all this means clients can be pointed towards a cluster using
just multiple A / AAAA records to gain both load sharing and redundancy
(if one is down, clients will talk to the remaining ones).

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4648
2018-01-14 08:52:31 +00:00
Jakob Borg
c24bf7ea55 vendor: Update everything
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4620
2017-12-29 11:38:00 +00:00
Jakob Borg
1296a22069 vendor: Update golang.org/x/sys/... (fixes #4615)
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4619
2017-12-29 09:25:24 +00:00
Jakob Borg
57e3f9e64b vendor: Update golang.org/x/sys/unix 2017-04-15 10:31:55 +02:00
Jakob Borg
a1bcc15458 vendor: Mega update all dependencies
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/4080
2017-04-05 14:34:41 +00:00
Audrius Butkevicius
0da0774ce4 lib/connections: Add KCP support (fixes #804)
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3489
2017-03-07 12:44:16 +00:00
Jakob Borg
7260629bc0 vendor: Update golang.org/x/net/ipv6 2017-03-04 07:28:11 +01:00
Jakob Borg
ec62888539 lib/connections: Allow on the fly changes to rate limits (fixes #3846)
Also replaces github.com/juju/ratelimit with golang.org/x/time/rate as
the latter supports changing the rate on the fly.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3862
2017-01-02 11:29:20 +00:00
AudriusButkevicius
9e0afb7d8a lib/connections: Support setting traffic class (fixes #3790) 2016-12-21 11:01:15 +01:00
Jakob Borg
9bf6917ae8 vendor: Update golang.org/x/crypto/... 2016-09-13 22:20:22 +02:00
Jakob Borg
897cca0a82 vendor: Update golang.org/x/net/... 2016-09-13 22:20:22 +02:00
Jakob Borg
ca755ec9e0 vendor: Add golang.org/x/net/bpf 2016-09-13 21:56:33 +02:00
Jakob Borg
59370588dd vendor: Add dependencies for strelaypoolsrv 2016-07-04 13:34:34 +02:00
Jakob Borg
f9e2623fdc vendor: Add dependencies for discosrv 2016-06-02 13:53:30 +02:00
Jakob Borg
65aaa607ab Use Go 1.5 vendoring instead of Godeps
Change made by:

- running "gvt fetch" on each of the packages mentioned in
  Godeps/Godeps.json
- `rm -rf Godeps`
- tweaking the build scripts to not mention Godeps
- tweaking the build scripts to test `./lib/...`, `./cmd/...` explicitly
  (to avoid testing vendor)
- tweaking the build scripts to not juggle GOPATH for Godeps and instead
  set GO15VENDOREXPERIMENT.

This also results in some updated packages at the same time I bet.

Building with Go 1.3 and 1.4 still *works* but won't use our vendored
dependencies - the user needs to have the actual packages in their
GOPATH then, which they'll get with a normal "go get". Building with Go
1.6+ will get our vendored dependencies by default even when not using
our build script, which is nice.

By doing this we gain some freedom in that we can pick and choose
manually what to include in vendor, as it's not based on just dependency
analysis of our own code. This is also a risk as we might pick up
dependencies we are unaware of, as the build may work locally with those
packages present in GOPATH. On the other hand the build server will
detect this as it has no packages in it's GOPATH beyond what is included
in the repo.

Recommended tool to manage dependencies is github.com/FiloSottile/gvt.
2016-03-05 21:21:24 +01:00