Commit Graph

5 Commits

Author SHA1 Message Date
teor a4dd3b7396
4. Avoid repeated requests to peers after partial responses or errors (#3505)
* fix(network): split synthetic NotFoundRegistry from message NotFoundResponse

* docs(network): Improve `notfound` message documentation

* refactor(network): Rename MustUseOneshotSender to MustUseClientResponseSender

```
fastmod MustUseOneshotSender MustUseClientResponseSender zebra*
```

* docs(network): fix a comment typo

* refactor(network): remove generics from MustUseClientResponseSender

* refactor(network): add an inventory collector to Client, but don't use it yet

* feat(network): register missing peer responses as missing inventory

We register this missing inventory based on peer responses,
or connection errors or timeouts.

Inbound message inventory tracking requires peers to send `notfound` messages.
But `zcashd` skips `notfound` for blocks, so we can't rely on peer messages.
This missing inventory tracking works regardless of peer `notfound` messages.

* refactor(network): rename ResponseStatus to InventoryResponse

```sh
fastmod ResponseStatus InventoryResponse zebra*
```

* refactor(network): rename InventoryStatus::inner() to to_inner()

* fix(network): remove a redundant runtime.enter() in a test

* doc(network): the exact time used to filter outbound peers doesn't matter

* fix(network): handle block requests slightly more efficiently

* doc(network): fix a typo

* fmt(network): `cargo fmt` after rename ResponseStatus to InventoryResponse

* doc(test): clarify some test comments

* test(network): test synthetic notfound from connection errors and peer inventory routing

* test(network): improve inbound test diagnostics

* feat(network): add a proptest-impl feature to zebra-network

* feat(network): add a test-only connect_isolated_with_inbound function

* test(network): allow a response on the isolated peer test connection

* test(network): fix failures in test synthetic notfound

* test(network): Simplify SharedPeerError test assertions

* test(network): test synthetic notfound from partially successful requests

* test(network): MissingInventoryCollector ignores local NotFoundRegistry errors

* fix(network): decrease the inventory rotation interval

This stops us waiting 3-4 sync resets (4 minutes) before we retry a missing block.

Now we wait 1-2 sync resets (2 minutes), which is still a reasonable rate limit.
This should speed up syncing near the tip, and on testnet.

* fmt(network): cargo fmt --all

* cleanup(network): remove unnecessary allow(dead_code)

* cleanup(network): stop importing the whole sync module into tests

* doc(network): clarify syncer inventory retry constraint

* doc(network): add a TODO for a fix to ensure API behaviour remains consistent

* doc(network): fix a function doc typo

* doc(network): clarify how we handle peers that don't send `notfound`

* docs(network): clarify a test comment

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-02-15 01:44:33 +00:00
teor 9f2028feff
3. Send notfound when Zebra doesn't have a block or transaction (#3466)
* refactor(network): rename Advertised to Available

```sh
fastmod Advertised Available zebra*
fastmod advertised available zebra*
```

* refactor(network): allow different available and missing types inside an InventoryStatus

And rename it to ResponseStatus.

Split the methods between ResponseStatus and an InventoryStatus alias.

* refactor(network): add a block_hash convenience method to InventoryHash

* test(network): improve failure logs for connection tests

* fix(inbound): move address sanitization into the response future

* feat(network): send notfound when Zebra doesn't have a block or transaction

* doc(network): move module docs to the top of each module

This makes them more likely to get updated when the module changes.

* fix(network): stop sending unsupported missing inventory types to the registry

* test(network): inbound messages are forwarded to the registry

* test(inbound): test Peers requests to the inbound service, directly and via TCP

* test(network): notfound block responses are sent by the inbound service

* test(network): notfound tx responses are sent by the inbound service

* test(network): increase sync test mock service timeout

The code that these tests use hasn't actually changed much,
and they are only failing on some platforms (coverage, macOS).

So it seems like the extra concurrent inbound tests have pushed them
past their time limit.
(Perhaps due to TCP system calls, or extra serialization work.)

* doc(network): fix typo

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* test(network): remove unnecessary multi-threaded runtime from tests

This prevents `MockService<zebra_state>` timeouts
in the `sync_block_too_high_extend_tips` test,
at the cost of reducing coverage of different execution orders.

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
2022-02-14 01:51:34 +00:00
teor 9be13a4fb7
2. Route peer requests based on missing inventory (#3465)
* feat(network): send notfound messages to the inventory registry

* refactor(network): move the inventory filter into an async function

* feat(network): avoid routing requests to peers that are missing inventory

* test(network): advertised routing is independent of numeric address value

* test(network): peer set routes requests to peers not missing that inventory

* test(network): peer set fails requests if all ready peers are missing that inventory

* fix(clippy): needless-borrow in the peer set

* fix(lint): remove redundant trailing commas in macro calls

There is no clippy lint for this, maybe because some macros
are sensitive to trailing commas.
(But not the ones changed in this commit.)

* test(network): check the exact number of inventory peers

* doc(network): explain why we ignore inventory send failures

* docs(network): explain why a channel error is ignored
2022-02-08 01:16:41 +00:00
teor 98502d6181
1. Create an API for a missing inventory registry, but don't register any missing inventory yet (#3255)
* feat(network): create an API for registering missing inventory, but don't use it yet

* feat(constraint): implement AtLeastOne::iter_mut()

* refactor(network): add InventoryStatus::marker() method to remove associated data

* fix(network): prefer current inventory, and missing inventory statuses

* fix(network): if an inventory rotation is missed, delay future rotations

* fix(network): don't immediately rotate a new empty inventory registry

* fix(network): assert that only expected inventory variants are stored in the registry

* test(network): add a basic empty inventory registry test

Also adds an inventory registry update future,
which makes it easier to call from an async context.

* refactor(network): add a convenience API for new InventoryChanges

* feat(network): improve inventory registry logging and metrics

* test(network): make sure advertised and missing inventory is correctly registered

* test(network): check that missing inventory is preferred over advertised

* test(network): check that current inventory is preferred over previous

* test(network): check peer set routes inv requests to advertised peers

* refactor(network): make the InventoryChange API more flexible

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-02-06 23:05:52 +00:00
Alfredo Garcia 4d2b3768c7
Add PeerSet readiness and request future cancel-safety tests (#3252)
* add a PeerSet drop test

* replace all `now_or_never()` in test

* add a drop of the ready future to test

* make sure requests always go to client

* fix imports and runtime

* add a peer sent hang test

* replace `std::mem::discriminant` calls

* replace `unreachable` calls

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* move comments

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* add `yield_now` call

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* increase timeout but make the test fast pausing the runtime

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

* apply last fixes

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-02-02 18:18:45 +00:00