Commit Graph

21 Commits

Author SHA1 Message Date
Jakob Borg
127c891526
cmd/stdiscosrv: Delete records for abandoned devices (#4957)
Once a device has been missing for a long time, and noone has asked
about it for a long time, delete the record.
2018-05-16 09:26:20 +02:00
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
71fab4d250 cmd/stdiscosrv: Record time of failed lookup
So that we can eventually garbage collect keys that noone is asking
about any more.
2018-03-06 16:15:29 +01:00
Jakob Borg
22ebc80329 cmd/stdiscosrv: Expose process metrics
Like this:

    $ curl -s http://localhost:9098/metrics | egrep '^syncthing_discovery_process'
    syncthing_discovery_process_cpu_seconds_total 12.92
    syncthing_discovery_process_max_fds 10240
    syncthing_discovery_process_open_fds 51
    syncthing_discovery_process_resident_memory_bytes 1.3674496e+08
    syncthing_discovery_process_start_time_seconds 1.52034731837e+09
    syncthing_discovery_process_virtual_memory_bytes 1.40324864e+08
2018-03-06 15:43:36 +01:00
Matic Potočnik
1901a5a9f4 all: Fix typos (#4772)
Skip-check: authors
2018-02-24 08:51:29 +01:00
Jakob Borg
b97d5bcca8
Remove KCP (fixes #4737) (#4741) 2018-02-09 11:40:57 +01:00
Jakob Borg
441230ff77 cmd/stdiscosrc: Handle address family indicator on other schemes than tcp 2018-01-28 10:24:48 +01:00
Jakob Borg
8de21be274 build: Packaging for stdiscosrv 2018-01-16 20:46:48 +01:00
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
161326c548 all: Weed out a few other http urls (ref #3976) 2017-02-09 08:04:16 +01:00
ProactiveServices
c953cdc375 gui: Package attribution and copyright bumps (fixes #3861)
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3863
2017-01-10 07:50:11 +00:00
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
Jakob Borg
724c354d62 cmd/stdiscosrv: Fix lint warning on Context keys (fixes #3760) 2016-11-24 11:20:51 +01:00
Jakob Borg
ce3e117976 cmd/stdiscosrv: rm 'cmd/stdiscosrv/stdiscosrv' (fixes #3663) 2016-10-09 14:26:43 +02:00
Jakob Borg
d328e0fb75 cmd/syncthing: Add selectable sha256 package (fixes #3613, fixes #3614)
This adds autodetection of the fastest hashing library on startup, thus
handling the performance regression. It also adds an environment
variable to control the selection, STHASHING=standard (Go standard
library version, avoids SIGILL crash when the minio library has bugs on
odd CPUs), STHASHING=minio (to force using the minio version) or unset
for the default autodetection.

GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3617
2016-09-23 19:33:54 +00:00
Audrius Butkevicius
81f683a61c cmd/stdiscosrv: Generate keys if missing on startup (fixes #3511) 2016-08-23 08:41:49 +02:00
Audrius Butkevicius
db6f68d031 cmd/stdiscosrv: Use UTC in database timestamps (fixes #3509) 2016-08-23 08:41:15 +02:00
Jakob Borg
e6364407a9 cmd/stdiscosrv: Fix index creation checks on startup 2016-08-12 11:39:10 +02:00
Jakob Borg
480b78f2c8 cmd/stdiscosrv: Longer address in schema 2016-08-12 11:38:37 +02:00
Jakob Borg
3176629410 cmd, lib: Fix ineffectual assignments (ineffasign) and comment spelling
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3405
2016-07-15 14:23:20 +00:00
aviau
6ff74cfcab build, cmd/stdiscosrv, cmd/strelaysrv: Rename binaries to add "st" prefix
GitHub-Pull-Request: https://github.com/syncthing/syncthing/pull/3371
2016-07-04 10:51:22 +00:00