Commit Graph

116 Commits

Author SHA1 Message Date
Tanguy Cizain bd2e9a0462
Fix trackers tests (#588)
* Fix checkTracker typo

* fix testswich tests

* use tracker consts
2021-06-14 10:26:11 +02:00
Tanguy Cizain caac8191d2
Change newXXXX procs to XXXX.new (#585)
* newBufferStream -> BufferStream.new

* newMultistream -> MultistreamSelect.new

* newSecio -> Secio.new

* newNoise -> Noise.new

* newPlainText -> PlainText.new

* newPubSubPeer -> PubSubPeer.new

* newIdentify -> Identify.new

* newMuxerProvider -> MuxerProvider.new
2021-06-07 09:32:08 +02:00
Dmitriy Ryajov eef5dd0042
fix imports 2021-06-02 12:24:06 -06:00
Dmitriy Ryajov 8e3ef540ea
add base exception class and fix hierarchy 2021-06-02 12:24:04 -06:00
Dmitriy Ryajov 3da656687b
use LPError more consistently (#582)
* use LPError more consistently

* don't use Exceptino

* annotate with raises

* don't panic on concatenation

* further rework error handling
2021-06-02 15:39:10 +02:00
Dmitriy Ryajov ac4e060e1a
adding raises defect across the codebase (#572)
* adding raises defect across the codebase

* use unittest2

* add windows deps caching

* update mingw link

* die on failed peerinfo initialization

* use result.expect instead of get

* use expect more consistently and rework inits

* use expect more consistently

* throw on missing public key

* remove unused closure annotation

* merge master
2021-05-21 10:27:01 -06:00
Jacek Sieka 83a20a992a
gossipsub: unsubscribe fixes (#569)
* gossipsub: unsubscribe fixes

* fix KeyError when updating metric of unsubscribed topic
* fix unsubscribe message not being sent to all peers causing them to
keep thinking we're still subscribed
* release memory earlier in a few places

* floodsub fix
2021-05-07 00:43:45 +02:00
Jacek Sieka e285d8bbf4
mem usage cleanups for pubsub (#564)
In `async` functions, a closure environment is created for variables
that cross an await boundary - this closure environment is kept in
memory for the lifetime of the associated future - this means that
although _some_ variables are no longer used, they still take up memory
for a long time.

In Nimbus, message validation is processed in batches meaning the future
of an incoming gossip message stays around for quite a while - this
leads to memory consumption peaks of 100-200 mb when there are many
attestations in the pipeline.

To avoid excessive memory usage, it's generally better to move non-async
code into proc's such that the variables therein can be released earlier
- this includes the many hidden variables introduced by macro and
template expansion (ie chronicles that does expensive exception
handling)

* move seen table salt to floodsub, use there as well
* shorten seen table salt to size of hash
* avoid unnecessary memory allocations and copies in a few places
* factor out message scoring
* avoid reencoding outgoing message for every peer
* keep checking validators until reject (in case there's both reject and
ignore)
* `readOnce` avoids `readExactly` overhead for single-byte read
* genericAssign -> assign2
2021-04-18 10:08:33 +02:00
Jacek Sieka 54031c9e9b
Fix minor exception issues (#550)
Makes code compatible with
https://github.com/status-im/nim-chronos/pull/166 without requiring it.
2021-03-23 07:45:25 +01:00
Giovanni Petrantoni 4760df1e31 fix build with libp2p_agents_metrics switch 2021-03-15 01:42:47 +00:00
Jacek Sieka 70deac9e0d
fix peer score accumulation (#541)
* fix accumulating peer score
* fix missing exception handling
* remove unnecessary initHashSet/initTable calls
* simplify peer stats management
* clean up tests a little
* fix some missing raises annotations
2021-03-09 13:22:52 +01:00
Giovanni Petrantoni 02ad017107
Gossipsub fixes and Initiator flagging fixes (#539)
* properly propagate initiator information for gossipsub

* Fix pubsubpeer lifetime management

* restore old behavior

* tests fixing

* clamp backoff time value received

* fix member name collisions

* internal test fixes

* better names and explaining of the importance of transport direction

* fixes
2021-03-03 08:23:40 +09:00
Dmitriy Ryajov fb493d1a4a
Connection limits tests (#509)
* connection limit tests

* remove use of secio

* check that upgraded fut is not nil

* rebuild
2021-01-27 21:27:33 -06:00
Dmitriy Ryajov 0959877b29
Connection limits (#384)
* master merge

* wip

* avoid deadlocks

* tcp limits

* expose client field in chronosstream

* limit incoming connections

* update with new listen api

* fix release

* don't override peerinfo in connection

* rework transport with accept

* use semaphore to track resource ussage

* rework with new transport accept api

* move events to conn manager (#373)

* use semaphore to track resource ussage

* merge master

* expose api to acquire conn slots

* don't fail expensive metrics

* allow tracking and updating connections

* set global connection limits to 80

* add per peer connection limits

* make sure conn is closed if tracking failed

* more descriptive naming for handle

* rework with new transport accept api

* add `getStream` hide `selectConn`

* add TransportClosedError

* make nil explicit

* don't make unnecessary copies of message

* logging

* error handling

* cleanup semaphore

* track connections properly

* throw `TooManyConnections` when tracking outgoing

* use proper exception and handle conventions

* check onCloseHandle for nil

* revert internalConnect changes

* adding upgraded flag

* await stream before closing

* simplify tracking

* wip

* logging

* split connection limits into incoming and outgoing

* further streamline connection limits split counts

* don't use closeWithEOF

* move peer and conn event triggers from switch

* wip

* wip

* wip

* merge master

* handle nil connections properly

* add clarifying comment

* don't raise exc on nil

* no finally

* add proper min/max connections logic

* rebase master

* merge master

* master merge

* remove request timeout

should be addressed in separate PR

* merge master

* share semaphore when in/out limits arent enforced

* merge master

* use import

* pass semaphore to trackConn

* don't close last conn

* use storeConn

* merge master

* use storeConn
2021-01-20 22:00:24 -06:00
Dmitriy Ryajov 34e330353f
better `upgraded` lifetime handling (avoid NPE) (#506)
* avoid npe on connection upgrade

* add `onUpgraded` event
2021-01-18 16:27:29 -06:00
Giovanni Petrantoni b902c030a0
add metrics into chronosstream to identify peers agents (#458)
* add metrics into chronosstream to identify peers agents

* avoid too many agent strings

* use gauge instead of counter for stream metrics

* filter identity on /

* also track bytes traffic

* fix identity tracking closeimpl call

* add gossip rpc metrics

* fix missing metrics inclusions

* metrics fixes and additions

* add a KnownLibP2PAgents strdefine

* enforse toLowerAscii to agent names (metrics)

* incoming rpc metrics

* fix silly mistake in rpc metrics

* fix agent metrics logic

* libp2p_gossipsub_failed_publish metric

* message ids metrics

* libp2p_pubsub_broadcast_ihave metric improvement

* refactor expensive gossip metrics

* more detailed metrics

* metrics improvements

* remove generic metrics for `set` users

* small fixes, add debug counters

* fix counter and add missing subs metrics!

* agent metrics behind -d:libp2p_agents_metrics

* remove testing related code from this PR

* small rebroadcast metric fix

* fix small mistake

* add some guide to the readme in order to use new metrics

* add libp2p_gossipsub_peers_scores metric

* add protobuf metrics to understand bytes traffic precisely

* refactor gossipsub metrics

* remove unused variable

* add more metrics, refactor rebalance metrics

* avoid bad metric concurrent states

* use a stack structure for gossip mesh metrics

* refine sub metrics

* add received subs metrics fixes

* measure handlers of known topics

* sub/unsub counter

* unsubscribeAll log unknown topics

* expose a way to specify known topics at runtime
2021-01-08 14:21:24 +09:00
Dmitriy Ryajov b2ea5a3c77
Concurrent upgrades (#489)
* adding an upgraded event to conn

* set stopped flag asap

* trigger upgradded event on conn

* set concurrency limit for accepts

* backporting semaphore from tcp-limits2

* export unittests module

* make params explicit

* tone down debug logs

* adding semaphore tests

* use semaphore to throttle concurent upgrades

* add libp2p scope

* trigger upgraded event before any other events

* add event handler for connection upgrade

* cleanup upgraded event on conn close

* make upgrades slot release rebust

* dont forget to release slot on nil connection

* misc

* make sure semaphore is always released

* minor improvements and a nil check

* removing unneeded comment

* make upgradeMonitor a non-closure proc

* make sure the `upgraded` event is initialized

* handle exceptions in accepts when stopping

* don't leak exceptions when stopping accept loops
2021-01-04 12:59:05 -06:00
Jacek Sieka b52dab9fd7
use stew/leb128 (#481)
* avoids multiple reallocations in readLp
* simplifies varint implementation
* remove vbuffer.length (unused)
2020-12-15 12:15:22 -06:00
Dmitriy Ryajov e9d4679059
Race in connection setup (#464)
* check that connection is not closed or eof

* don't release connection lock prematurely

* test that only valid connections can be added

* correct exception type on closed connection

* add clarifying comment

* use closeWithEOF for more stable test

* misc comments

* log stream id in buffestream asserts

* use closeWithEOF to prevent races in tests

* give some time to the remote handler to trigger

* adding more tests to make codecov happy
2020-12-02 19:24:48 -06:00
Dmitriy Ryajov d1c689e5ab
adding libp2p tag to logScope (#465) 2020-12-01 11:34:27 -06:00
Dmitriy Ryajov 94e672ead0
allow concurrent closeWithEOF (#466)
* allow concurrent closeWithEOF

* add dedicated closedWithEOF flag
2020-12-01 09:44:21 +01:00
Jacek Sieka 5c2a54bdd9
fix timeoutmonitor loop (#463)
* fix timeoutmonitor loop

* Clarify that cancellation can happen while in timeoutMonitor
2020-11-29 13:34:19 +01:00
Dmitriy Ryajov ca9c5c85e4
dont break chronicles logging streamline connsetup (#455) 2020-11-25 13:34:48 -06:00
Dmitriy Ryajov 1d16d22f5f
Don't allow concurrent pushdata (#444)
* handle resets properly with/without pushes/reads

* add clarifying comments

* pushEof should also not be concurrent

* move channel reset to bufferstream

this is where the action happens - lpchannel merely redefines how close
is done

Co-authored-by: Jacek Sieka <jacek@status.im>
2020-11-23 09:07:11 -06:00
Dmitriy Ryajov 92fa4110c1
Rework transport to use chronos accept (#420)
* rework transport to use the new accept api

* use the new chronos primits

* fixup tests to use the new transport api

* handle all exceptions in upgradeIncoming

* master merge

* add multiaddress exception type

* raise appropriate exception on invalida address

* allow retrying on TransportTooManyError

* adding TODO

* wip

* merge master

* add sleep if nil is returned

* accept loop handles all exceptions

* avoid issues with tray/except/finally

* make consistent with master

* cleanup accept loop

* logging

* Update libp2p/transports/tcptransport.nim

Co-authored-by: Jacek Sieka <jacek@status.im>

* use Direction enum instead of initiator flag

* use consistent import style

* remove experimental `closeWithEOF()`

Co-authored-by: Jacek Sieka <jacek@status.im>
2020-11-18 20:06:42 -06:00
Jacek Sieka 74acd0a33a
fix channels not being reset (#439)
* fix channels not being reset

silly for loop..

* allow only one concurrent read
* fix mplex test race condition
* add some bufferstream eof tests

* deadlock, lost data and hung channel fixes

* prevent concurrent `reset` calls
* reset LPChannel when read is cancelled (since data is lost)
* ensure there's one, and one only, 0-byte readOnce on EOF
* ensure that all data is returned before EOF is returned
* keep running activity monitor for half-closed channels (or they never
get closed)
2020-11-17 08:59:25 -06:00
Dmitriy Ryajov 90921bff09
move some importance trace logs to debug (#428) 2020-11-09 22:14:46 -06:00
Dmitriy Ryajov 4fb3f50d2c
Reset channels on close (#425)
* reset when failed to read/write muxed conn

* add more comprehensive resource cleanup tests

* style

* cleanup tests
2020-11-06 09:24:24 -06:00
Dmitriy Ryajov 3956f3fd69
make sure all streams are tracked (#422)
* make sure all streams are tracked

* revert unnecesary change
2020-11-04 21:52:54 -06:00
Dmitriy Ryajov 43a77e60a1
split stream counts by direction (#418) 2020-11-01 16:23:26 -06:00
Jacek Sieka 03639f1446
Revert "Channel leaks (#413)" (#417)
This reverts commit 1de1d49223.
2020-11-01 14:49:25 -06:00
Dmitriy Ryajov 1de1d49223
Channel leaks (#413)
* break stream tracking by type

* use closeWithEOF to await wrapped stream

* fix cancelation leaks

* fix channel leaks

* logging

* use close monitor and always call closeUnderlying

* don't use closeWithEOF

* removing close monitor

* logging
2020-10-27 11:21:03 -06:00
Jacek Sieka 17e00e642a
limit write queue length (#376)
To break a potential read/write deadlock, gossipsub uses an unbounded
queue for writes - when peers are too slow to process this queue, it may
end up growing without bounds causing high memory usage.

Here, we introduce a maximum write queue length after which the peer is
disconnected - the queue is generous enough that any "normal" usage
should be fine - writes that are `await`:ed are not affected, only
writes that are launched in an `asyncSpawn` task or similar.

* avoid unnecessary copy of message when there are no send observers
* release message memory earlier in gossipsub
* simplify pubsubpeer logging
2020-09-24 18:43:20 +02:00
Jacek Sieka 25bd0a18f4
small fixes (#374)
* add helper to read EOF marker after closing stream (else stream stay
alive until timeout/reset)
* don't assert on empty channel message
* don't loop when writing to chronos (no need)
2020-09-24 07:30:19 +02:00
Jacek Sieka 49a12e619d
channel close race and deadlock fixes (#368)
* channel close race and deadlock fixes

* remove send lock, write chunks in one go
* push some of half-closed implementation to BufferStream
* fix some hangs where LPChannel readers and writers would not always
wake up
* simplify lazy channels
* fix close happening more than once in some orderings
* reenable connection tracking tests
* close channels first on mplex close such that consumers can read bytes

A notable difference is that BufferedStream is no longer considered EOF
until someone has actually read the EOF marker.

* docs, simplification
2020-09-21 19:48:19 +02:00
Jacek Sieka b7e5d1122c
cleanups (#366)
* reuse connection timeout for noise handshake (avoid extra timer)
* enforce nbytes > 0 for readOnce
* avoid some unnecessary memory zeroing
* simplify noise
* fix dumping when noise splits message
2020-09-16 11:55:25 +02:00
Jacek Sieka 0db45462cd
mplex fixes (#362)
* remove almost-empty types module
* lock when writing message (that's the only place the lock matters, and
only when the message is > max msg size)
* logging updates (log in consistent order, makes reading logs easier)
* raise EOF from readExactly only if no bytes have been read (to signal
that _no_ bytes were lost)
2020-09-14 10:19:54 +02:00
Jacek Sieka 96d4c44fec
refactor bufferstream to use a queue (#346)
This change modifies how the backpressure algorithm in bufferstream
works - in particular, instead of working byte-by-byte, it will now work
seq-by-seq.

When data arrives, it usually does so in packets - in the current
bufferstream, the packet is read then split into bytes which are fed one
by one to the bufferstream. On the reading side, the bytes are popped of
the bufferstream, again byte by byte, to satisfy `readOnce` requests -
this introduces a lot of synchronization traffic because the checks for
full buffer and for async event handling must be done for every byte.

In this PR, a queue of length 1 is used instead - this means there will
at most exist one "packet" in `pushTo`, one in the queue and one in the
slush buffer that is used to store incomplete reads.

* avoid byte-by-byte copy to buffer, with synchronization in-between
* reuse AsyncQueue synchronization logic instead of rolling own
* avoid writeHandler callback - implement `write` method instead
* simplify EOF signalling by only setting EOF flag in queue reader (and
reset)
* remove BufferStream pipes (unused)
* fixes drainBuffer deadlock when drain is called from within read loop
and thus blocks draining
* fix lpchannel init order
2020-09-10 08:19:13 +02:00
Jacek Sieka 5b347adf58
logging fixes and small cleanups (#361)
In particular, allow longer multistream select reads
2020-09-09 19:12:08 +02:00
Jacek Sieka c1856fda53
simplify and unify logging (#353)
* use short format for logging peerid
* log peerid:oid for connections
2020-09-06 10:31:47 +02:00
Jacek Sieka cd1c68dbc5
avoid send deadlock by not allowing send to block (#342)
* avoid send deadlock by not allowing send to block

* handle message issues more consistently
2020-09-01 09:33:03 +02:00
Dmitriy Ryajov d3182c4dba
No raise send (#339)
* dont raise in send

* check that the lock is acquire on release
2020-08-20 20:50:33 -06:00
Jacek Sieka 790b67c923
work around bufferstream deadlock (#332)
mplex backpressure handling deadlocks with something
2020-08-17 12:45:54 +02:00
Jacek Sieka ab864fc747
logging cleanups and small fixes (#331) 2020-08-15 21:50:31 +02:00
Jacek Sieka 397f9edfd4
simplify mplex (#327)
* less async
* less copying of data
* less redundant cleanup
2020-08-15 07:58:30 +02:00
Dmitriy Ryajov d1f1e1b31e
add missing mplex half closed test (#326) 2020-08-12 07:23:49 +02:00
Dmitriy Ryajov b76b3e0e9b
Rework pubsub (#322)
* move pubsub of off switch, pass switch into pubsub

* use join on lpstreams

* properly cleanup up failed peers

* fix tests

* fix peertable hasPeerId

* fix tests

* rework sending, remove helpers from pubsubpeer, unify in broadcast

* further split broadcast into send

* use send where appropriate

* use formatIt

* improve trace

Co-authored-by: Giovanni Petrantoni <giovanni@fragcolor.xyz>
2020-08-11 18:05:49 -06:00
Dmitriy Ryajov 2325692f55
Fix half closed (#324)
* don't call `close` in `remoteClose`

* make sure timeout are properly propagted

* fix tests

* adding remote close write test
2020-08-10 16:17:11 -06:00
Jacek Sieka 7c2ab38da1
cleanups (#319) 2020-08-06 20:14:40 +02:00
Giovanni Petrantoni 5c986cf657
Fix build, add some raises (#315)
* Fix build, add some raises

* wip

* wip more raises

* missing exc object in mplex

* proper lifetime for subscribePeer

Co-authored-by: Dmitriy Ryajov <dryajov@gmail.com>
2020-08-05 19:30:57 -06:00