`les_protocol.nim` failed to build, due to very silly Nim bugs
nim-lang/Nim#8792 and nim-lang/Nim#17102.
import
../../[rlp, keys], ../../common/eth_types,
../[rlpx, kademlia, blockchain_utils], ../private/p2p_types,
The silly part is `../` has to be quoted if it's before a group of files, but
not before a single file. Most places in PR #344 / 7624153 use the workaround
`".."/` but it was missed in `les_protocol.nim`:
nimbus-eth1/vendor/nim-eth/eth/p2p/rlpx_protocols/les_protocol.nim(14, 3)
Error: cannot open file: ../../[rlp,keys]
Signed-off-by: Jamie Lokier <jamie@shareable.org>
It's been confirmed that the test fails if the Kademlia crash workaround isn't
in `findNode`, and passes with it there.
Signed-off-by: Jamie Lokier <jamie@shareable.org>
* Add build_dcli target and add it to CI
* Fix local imports for dcli
* And use local imports for all other files too
* Use local imports in tests and rlpx protocols
Fixesstatus-im/nim-eth#341, status-im/nimbus-eth1#489.
When using discv4 (Kademlia) to find peers, there is a crash after a few
minutes. It occurs for most of us on Eth1 mainnet, and everyone on Ropsten.
The cause is `findNodes` being called twice in succession to the same peer,
within about 5 seconds of each other. ("About" 5 seconds, because Chronos does
not guarantee to run the timeout branch at a particular time, due to queuing
and clock reading delays.)
Then `findNodes` sends a duplicate message to the peer and calls
`waitNeighbours` to listen for the reply. There's already a `waitNeighbours`
callback in a shared table, so that function hits an assert failure.
Ignoring the assert would be wrong as it would break timeout logic, and sending
`FindNodes` twice in rapid succession also makes us a bad peer.
As a simple workaround, just skip `findNodes` in this state and return a fake
empty `Neighbours` reply. This is a bit of a hack as `findNodes` should not be
called like this; there's a logic error at a higher level. But it works.
Tested for about 4 days constant operation on Ropsten. The crash which occured
every few minutes no longer occurs, and discv4 keeps working.
Signed-off-by: Jamie Lokier <jamie@shareable.org>
* Add search for best route and refactor setupNat to setupAddress
* Update setupAddress and make enr ports in discovery optional
* Add specific error log when no route is found
* Use bindIP if it is public
* Adjust some log levels
This query proc is similar to the original (faulty) lookup proc.
But as we don't need to look for specific targets, it can be
used still as it gives a quicker and broader search resulting
in more nodes.
kdeme
Jamie Lokier
Jacek Sieka
jangko
Zahary Karadjov
andri lim