Commit Graph

49 Commits

Author SHA1 Message Date
Marcel Märtens
c212de00c2 updated dependencies and fixed stuff
- replace serde_derive by feature of serde
   incl. source code modifications to compile
 - reduce futures-timer to "2.0" to be same as async_std
 - update notify
 - removed mio, bincode and lz4 compress in common as networking is now in own crate
   btw there is a better lz4 compress crate, which is newer than 2017
 - update prometheus to 0.9
 - can't update uvth yet due to usues
 - hashbrown to 7.2 to only need a single version
 - libsqlite3 update
 - image didn't change as there is a problem with `image 0.23`
 - switch old directories with newer directories-next
 - no num upgrade as we still depend on num 0.2 anyways
 - rodio and cpal upgrade
 - const-tewaker update
 - dispatch (untested) update
 - git2 update
 - iterations update
2020-07-07 09:43:49 +02:00
Joshua Barretto
3c1fddfb0b Merge branch 'zesterer/server-fixes' into 'master'
Server bug fixes

See merge request veloren/veloren!1159
2020-07-05 19:41:30 +00:00
Joshua Barretto
dd2a81b1f3 Increased network test timeouts 2020-07-05 19:56:06 +01:00
Marcel Märtens
3a6319f2f6 compress everything 2020-07-05 20:14:47 +02:00
Marcel Märtens
092b1e0d6c small fix 2020-07-05 18:54:34 +02:00
Marcel
2a7a8b05e6 Merge branch 'network-lockless' into 'master'
Network lockless

See merge request veloren/veloren!1153
2020-07-05 09:17:29 +00:00
Marcel Märtens
e7195b57ad extend network with better Error codes for Network 2020-07-04 12:32:52 +02:00
Marcel Märtens
cbfd398035 remove Mutex in server as Stream is now 'Sync' 2020-07-04 12:31:59 +02:00
Marcel Märtens
6de2eadeb0 make crash -> error for now 2020-07-04 10:32:52 +02:00
Marcel Märtens
1da6f15a43 fixing various smaller network party from issue 657 2020-07-04 02:04:33 +02:00
Marcel Märtens
f9895a7800 crossbeam-channel and log spam
- swap out std::mpsc with crossbeam-channel in networking crate
 - remove log spam by only logging when populating a new cache entry and not on every get
2020-07-03 22:35:29 +02:00
Marcel Märtens
e1b27c51f5 fix clippy issues in tests and add it to CI 2020-07-01 00:37:15 +02:00
Marcel Märtens
6535fa5744 fix various clippy issues 2020-07-01 00:37:06 +02:00
Marcel Märtens
11e7b1f922 increase network sleep in order to fix flanky tests 2020-06-29 14:32:20 +02:00
Marcel Märtens
57453291e4 - switched participant to only error!() once a sec instead of every occurence in order to not spam error
- switched the behavior of prio to keep the order of a stream, EVEN if messages of different length are used!
  This needs to be addresses to fulfill PROMISES_ORDERED
  I think we need to make thoughs if PRIO needs to handle this, or we add additional meta info and handle it on receiver site
2020-06-28 22:29:42 +02:00
Ben Wallis
c1c968f479 Globally suppressed clippy lint option_map_unit_fn for #587 2020-06-14 16:48:07 +00:00
Marcel Märtens
1435d8d6be remove unused files 2020-06-12 11:53:59 +02:00
Marcel Märtens
0e59ee901e dependency reduction:
- authc no longer uses reqwest
 - image only supports PNG
 - replace routille with tiny_http
 - several other dependencies
 - cargo upgrade
 - following improvement was measured on R7 1700X:
   before:
    - cargo build: 3076.73s user / 4:45 total / 589 dependencies
    - cargo test: 6118.38s user / 7:30 total / 959 dependencies
   after:
    - cargo build: 2680.54s user / 4:05 total / 480 dependencies
    - cargo test: 5351.81s user / 7:04 total / 791 dependencies
 - added xMAC94x to CODEOWNERS for Cargo.toml, he will protect them from now on and hit people with evil looks ;)
2020-06-11 20:55:34 +02:00
Marcel Märtens
2e3d5f87db StreamError::Deserialize is now triggered when recv fails because of wrong type
- added PartialEq to StreamError for test purposes (only yet!)
 - removed async_recv example as it's no longer for any use.
   It was created before the COMPLETE REWRITE in order to verify that my own async interface on top of mio works.
   However it's now guaranteed by async-std and futures. no need for a special test
 - remove uvth from dependencies and replace it with a `FnOnce`
 - fix ALL clippy (network) lints
 - basic fix for a channel drop scenario:
   TODO: this needs some further fixes
   up to know only destruction of participant by api was covered correctly.
   we had an issue when the underlying channels got dropped. So now we have a participant without channels.
   We need to buffer the requests and try to reopen a channel ASAP!
   If no channel could be reopened we need to close the Participant, while
    a) leaving the BParticipant in takt, knowing that it only waits for a propper close by scheduler
    b) close the BParticipant gracefully. Notifying the scheduler to remove its stuff (either scheduler schould detect a stopped BParticipant or BParticipant will send Scheduler it's own destruction, and then Scheduler just does the same like when API forces a close)
       Keep the Participant alive and wait for the api to acces BParticipant to notice it's closed and then wait for a disconnect which isn't doing anything as it was already cleaned up in the background
2020-06-09 13:16:39 +02:00
Marcel Märtens
3324c08640 Fixing the DEADLOCK in handshake -> channel creation
- this bug was initially called imbris bug, as it happened on his runners and i couldn't reproduce it locally at fist :)
- When in a Handshake a seperate mpsc::Channel was created for (Cid, Frame) transport
  however the protocol could already catch non handshake data any more and push in into this
  mpsc::Channel.
  Then this channel got dropped and a fresh one was created for the network::Channel.
  These droped Frames are ofc a BUG!
  I tried multiple things to solve this:
   - dont create a new mpsc::Channel, but instead bind it to the Protocol itself and always use 1.
     This would work theoretically, but in bParticipant side we are using 1 mpsc::Channel<(Cid, Frame)>
     to handle ALL the network::channel.
     If now ever Protocol would have it's own, and with that every network::Channel had it's own it would no longer work out
     Bad Idea...
   - using the first method but creating the mpsc::Channel inside the scheduler instead protocol neither works, as the
     scheduler doesnt know the remote_pid yet
   - i dont want a hack to say the protocol only listen to 2 messages and then stop no matter what
  So i switched over to the simply method now:
   - Do everything like before with 2 mpsc::Channels
   - after the handshake. close the receiver and listen for all remaining (cid, frame) combinations
   - when starting the channel, reapply them to the new sender/listener combination
   - added tracing
- switched Protocol RwLock to Mutex, as it's only ever 1
- Additionally changed the layout and introduces the c2w_frame_s and w2s_cid_frame_s name schema
- Fixed a bug in scheduler which WOULD cause a DEADLOCK if handshake would fail
- fixd a but in api_send_send_main, i need to store the stream_p otherwise it's immeadiatly closed and a stream_a.send() isn't guaranteed
- add extra test to verify that a send message is received even if the Stream is already closed
- changed OutGoing to Outgoing
- fixed a bug that `metrics.tick()` was never called
- removed 2 unused nightly features and added `deny_code`
2020-06-09 01:24:21 +02:00
Marcel Märtens
2a7c5807ff overall cleanup, more tests, fixing clashes, removing unwraps, hardening against protocol errors, prepare prio mgr to take commands from scheduler
fix async_recv and double block_on panic on Network::drop and participant::drop
include Cargo.lock from all examples
Found a bug on imbris runners with doc tests of `stream::send` and `stream::recv`
As neither a backtrace, nor tracing on runners in the doc tests seems to help, i disable them and add them as unit tests
2020-06-09 01:24:16 +02:00
Marcel Märtens
a86cfbae65 add new tests and increase coverage 2020-06-09 01:24:07 +02:00
Marcel Märtens
6e776e449f fixing all tests and doc tests including some deadlocks 2020-06-09 01:24:05 +02:00
Marcel Märtens
9550da87b8 speeding up metrics by reducing string generation and Hashmap access with a metrics cache for msg/send and msg/recv 2020-06-09 01:24:01 +02:00
Marcel Märtens
8b839afcae move prios from scheduler to participant in oder to fixing closing of stream/participant
however i need to coordinate the prio adjustments in scheduler from now on, so that ParticipantA doesn't get all the network bandwith and ParticipantB nothing
2020-06-09 01:23:58 +02:00
Marcel Märtens
bd69b2ae28 renamed all Channels to new naming scheme and fixing shutting down bparticipant and scheduler correctly. Introducing structs to keep Info in scheduler.rs and participant.rs 2020-06-09 01:23:55 +02:00
Marcel Märtens
007f5cabaa DOCUMENTATION for everything 2020-06-09 01:23:52 +02:00
Marcel Märtens
a8f1bc178a Experiments with a prometheus bug which actually worked as designed because i had client and server running at the same time
- https://github.com/tikv/rust-prometheus/issues/321
 - split up channel into a hanshake part and channel part.
   The handshake part is non endless and ends when its either done or aborted.
   If its okay i will send a request to the BParticipant which then opens a channel on the existing TCP or UDP connection.
   this streamlines the command chain alot. also the channel is almost empty now, thinking about removing it completly.
   isnt perfect, as shutdown and udp doesnt work yet
 - make PID to print as Base64
 - replace rouille with tiny_http
2020-06-09 01:23:49 +02:00
Marcel Märtens
9074de533a handling frames no longer is channel -> scheduler -> participant, but it's directly channel -> participant, removing a lock and a single bottleneck in the scheduler 2020-06-09 01:23:45 +02:00
Marcel Märtens
661060808d switch from serde to manually for speed, remove async_serde
- removing async_serde as it seems to be not usefull
  the idea was because deserialising is slow parallising it could speed up.
  Whoever we need to keep the order of frames, (at least for controlframes) so serialising in threads would be quite complicated.
  Also serialisation is quite fast, about 1 Gbit/s such speed is enough for messaging, it's more important to serve parallel streams better.
  Thats why i am removing async serde coding for now
- frames are no longer serialized by serde, by byte by byte manually, increadible speed upgrade
- more metrics
- switch channel_creator into for_each_concurrent
- removing some pool.spwan_ok() as they dont allow me to use self
- reduce features needed
2020-06-09 01:23:42 +02:00
Marcel Märtens
2ee18b1fd8 Examples, HUGE fixes, test, make it alot smother
- switch `listen` to async in oder to verify if the bind was successful
- Introduce the following examples
  - network speed
  - chat
  - fileshare
- add additional tests
- fix dropping stream before last messages can be handled bug, when dropping a stream, BParticipant will wait for prio to be empty before dropping the stream and sending the signal
- correct closing of stream and participant
- move tcp to protocols and create udp front and backend
- tracing and fixing a bug that is caused by not waiting for configuration after receiving a frame
- fix a bug in network-speed, but there is still a bug if trace=warn after 2.000.000 messages the server doesnt get that client has shut down and seems to lock somewhere. hard to reproduce

open tasks
[ ] verify UDP works correctly, especcially the connect!
[ ] implements UDP shutdown correctly, the one created in connect!
[ ] unify logging
[ ] fill metrics
[ ] fix dropping stream before last messages can be handled bug
[ ] add documentation
[ ] add benchmarks
[ ] remove async_serde???
[ ] add mpsc
2020-06-09 01:23:37 +02:00
Marcel Märtens
595f1502b3 COMPLETE REWRITE
- use async_std and implement a async serialisaition
- new participant, stream and drop on the participant
- sending and receiving on streams
2020-06-09 01:23:30 +02:00
Marcel Märtens
499a895922 shutdown and udp/mpsc
- theorectically closing of streams and shutdown
- mpsc and udp preparations
- cleanup and build better tests
2020-06-09 01:23:26 +02:00
Marcel Märtens
9354952a7f Code/Dependency Cleanup 2020-06-09 01:23:19 +02:00
Marcel Märtens
641df53f4a Got some async test to work 2020-06-09 01:23:15 +02:00
Marcel Märtens
74143e13d3 Implement a async recv test 2020-06-09 01:23:12 +02:00
Marcel Märtens
1e948389cc Switch to iterator based ChannelProtocols 2020-06-09 01:23:09 +02:00
Marcel Märtens
ca45baeb76 Fix TCP buffering with a NetworkBuffer struct 2020-06-09 01:23:07 +02:00
Marcel Märtens
19fb1d3be4 Experiment with TCP buffering 2020-06-09 01:23:05 +02:00
Marcel Märtens
a6f1e3f176 Add a speedtest program to benchmark networking 2020-06-09 01:23:01 +02:00
Marcel Märtens
35233d07f9 Cleanup:
- We can now get rid of most sleep and get true remote part and stream working, however there seems to be a deadlock after registered new handle trace with 10% spawn chance
 - removal of the events trait, as we use channels
 - streams now directly communicate with each other for performance reasons, somewhere are still deadlocks, oonce directly at listening somehow and after the first message has read, but i also got it to run perfectly through at this state without code change, maybe a sleep or more detailed rust-dgb session would help here!
2020-06-09 01:22:58 +02:00
Marcel Märtens
10863eed14 remove worker folder - flatten file structure 2020-06-09 01:22:55 +02:00
Marcel Märtens
e388b40c54 Till now all operations where oneshots, now i actually wait for a participant handshake to complete and being able to return their PID
also fixed the correct pid, sid beeing send
2020-06-09 01:22:52 +02:00
Marcel Märtens
88f6b36a4e Differ Metrics to make it easier to implement your own metric coding!
Implement my own metric coding in networking
2020-06-09 01:22:48 +02:00
Marcel Märtens
f3251c0879 Converting the API interface to Async and experimenting with a Channel implementation for TCP, UDP, MPSC, which will later be reverted
It should compile and tests run fine now.
If not, the 2nd last squashed commit message said it currently only send frames but not incomming messages, also recv would only handle frames. The last one said i added internal messages and a reverse path (prob for .recv)
2020-06-09 01:22:45 +02:00
Marcel Märtens
5c5b33bd2a Bring networking tests to green
- Seperate worker into own directory
 - implement correct handshakes
 - implement correct receiving
2020-06-09 01:22:42 +02:00
Marcel Märtens
3d8ddcb4b3 Continue backend for networking and fill gaps, including:
- introduce tlid to allow
 - introduce channel trait
 - remove old experimental handshake
 - seperate mio_worker into multiple fn
 - implement stream in backend
2020-06-09 01:22:38 +02:00
Marcel Märtens
52078f2251 first implementation of connect and tcp using a mio worker protocol and:
- introduce a loadtest, for tcp messages
 - cleanup api
 - added a unittest
 - prepared a handshake message, which will in next commits get removed again
 - experimental mio worker merges
 - using uuid for participant id
2020-06-09 01:22:35 +02:00
Marcel Märtens
a01afd0c86 initial implementation of a network api 2020-06-09 01:22:32 +02:00