Commit Graph

98 Commits

Author SHA1 Message Date
Arya 2f3b05f8e1
change(rpc): add submitblock RPC method (#5526)
* adds submitblock rpc method

* re-orders imports

* replaces thread::yield_now with async yield_now

* Fix doc warnings and unused variable warnings, add missing docs

* Mark work_id as optional

* Use the same ChainVerifier for downloaded and submitted blocks

* Revert unused changes & minor cleanups

* Document currently-unreachable code

* updates tests and submit_block response for AlreadyVerified error

* Update zebra-rpc/src/methods/get_block_template_rpcs.rs

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>

* changes names from BlockVerifier to ChainVerifier and block_verifier to chain_verifier to keep it consistent with naming in zebra-consensus

* move how to run the submit_block test example to acceptance.rs

* updates snapshot tests

* moved acceptance test to a separate file

* removes extra tower::ServiceBuilder::new(), updates docs

* updates vectors and snapshot tests, changes hex decoding error in submit_block method from server error to parse error

* hides errors module in zebra-rpc behind a feature flag and adds docs.

* Updates snapshot test, adds mod docs, moves HexData to its own mod, and removes the unrelated make_server_error refactor for now

* update submit block acceptance test mod doc

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-11-04 03:57:08 +00:00
Arya a28350e742
change(state): Write non-finalized blocks to the state in a separate thread, to avoid network and RPC hangs (#5257)
* Add a new block commit task and channels, that don't do anything yet

* Add last_block_hash_sent to the state service, to avoid database accesses

* Update last_block_hash_sent regardless of commit errors

* Rename a field to StateService.max_queued_finalized_height

* Commit finalized blocks to the state in a separate task

* Check for panics in the block write task

* Wait for the block commit task in tests, and check for errors

* Always run a proptest that sleeps once

* Add extra debugging to state shutdowns

* Work around a RocksDB shutdown bug

* Close the finalized block channel when we're finished with it

* Only reset state queue once per error

* Update some TODOs

* Add a module doc comment

* Drop channels and check for closed channels in the block commit task

* Close state channels and tasks on drop

* Remove some duplicate fields across StateService and ReadStateService

* Try tweaking the shutdown steps

* Update and clarify some comments

* Clarify another comment

* Don't try to cancel RocksDB background work on drop

* Fix up some comments

* Remove some duplicate code

* Remove redundant workarounds for shutdown issues

* Remode a redundant channel close in the block commit task

* Remove a mistaken `!force` shutdown condition

* Remove duplicate force-shutdown code and explain it better

* Improve RPC error logging

* Wait for chain tip updates in the RPC tests

* Wait 2 seconds for chain tip updates before skipping them

* Remove an unnecessary block_in_place()

* Fix some test error messages that were changed by earlier fixes

* Expand some comments, fix typos

Co-authored-by: Marek <mail@marek.onl>

* Actually drop children of failed blocks

* Explain why we drop descendants of failed blocks

* Clarify a comment

* Wait for chain tip updates in a failing test on macOS

* Clean duplicate finalized blocks when the non-finalized state activates

* Send an error when receiving a duplicate finalized block

* Update checkpoint block behaviour, document its consensus rule

* Wait for chain tip changes in inbound_block_height_lookahead_limit test

* Wait for the genesis block to commit in the fake peer set mempool tests

* Disable unreliable mempool verification check in the send transaction test

* Appease rustfmt

* Use clear_finalized_block_queue() everywhere that blocks are dropped

* Document how Finalized and NonFinalized clones are different

* sends non-finalized blocks to the block write task

* passes ZebraDb to commit_new_chain, commit_block, and no_duplicates_in_finalized_chain instead of FinalizedState

* Update zebra-state/src/service/write.rs

Co-authored-by: teor <teor@riseup.net>

* updates comments, renames send_process_queued, other minor cleanup

* update assert_block_can_be_validated comment

* removes `mem` field from StateService

* removes `disk` field from StateService and updates block_iter to use `ZebraDb` instead of the finalized state

* updates tests that use the disk to use read_service.db instead

* moves best_tip to a read fn and returns finalized & non-finalized states from setup instead of the state service

* changes `contextual_validity` to get the network from the finalized_state instead of another param

* swaps out StateService with FinalizedState and NonFinalizedState in tests

* adds NotReadyToBeCommitted error and returns it from validate_and_commit when a blocks parent hash is not in any chain

* removes NonFinalizedWriteCmd and calls, moves update_latest_channels above rsp_tx.send

* makes parent_errors_map an indexmap

* clears non-finalized block queue when the receiver is dropped and when the StateService is being dropped

* sends non-finalized blocks to the block write task

* passes ZebraDb to commit_new_chain, commit_block, and no_duplicates_in_finalized_chain instead of FinalizedState

* updates comments, renames send_process_queued, other minor cleanup

* Update zebra-state/src/service/write.rs

Co-authored-by: teor <teor@riseup.net>

* update assert_block_can_be_validated comment

* removes `mem` field from StateService

* removes `disk` field from StateService and updates block_iter to use `ZebraDb` instead of the finalized state

* updates tests that use the disk to use read_service.db instead

* moves best_tip to a read fn and returns finalized & non-finalized states from setup instead of the state service

* changes `contextual_validity` to get the network from the finalized_state instead of another param

* swaps out StateService with FinalizedState and NonFinalizedState in tests

* adds NotReadyToBeCommitted error and returns it from validate_and_commit when a blocks parent hash is not in any chain

* removes NonFinalizedWriteCmd and calls, moves update_latest_channels above rsp_tx.send

* makes parent_errors_map an indexmap

* clears non-finalized block queue when the receiver is dropped and when the StateService is being dropped

* removes duplicate field definitions on StateService that were a result of a bad merge

* update NotReadyToBeCommitted error message

* Appear rustfmt

* Fix doc links

* Rename a function to initial_contextual_validity()

* Do error tasks on Err, and success tasks on Ok

* Simplify parent_error_map truncation

* Rewrite best_tip() to use tip()

* Rename latest_mem() to latest_non_finalized_state()

```sh
fastmod latest_mem latest_non_finalized_state zebra*
cargo fmt --all
```

* Simplify latest_non_finalized_state() using a new WatchReceiver API

* Expand some error messages

* Send the result after updating the channels, and document why

* wait for chain_tip_update before cancelling download in mempool_cancel_mined

* adds `sent_non_finalized_block_hashes` field to StateService

* adds batched sent_hash insertions and checks sent hashes in queue_and_commit_non_finalized before adding a block to the queue

* check that the `curr_buf` in SentHashes is not empty before pushing it to the `sent_bufs`

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Fix rustfmt

* Check for finalized block heights using zs_contains()

* adds known_utxos field to SentHashes

* updates comment on SentHashes.add method

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* return early when there's a duplicate hash in QueuedBlocks.queue instead of panicking

* Make finalized UTXOs near the final checkpoint available for full block verification

* Replace a checkpoint height literal with the actual config

* Update mainnet and testnet checkpoints - 7 October 2022

* Fix some state service init arguments

* Allow more lookahead in the downloader, but less lookahead in the syncer

* Add the latest config to the tests, and fix the latest config check

* Increase the number of finalized blocks checked for non-finalized block UTXO spends

* fix(log): reduce verbose logs for block commits (#5348)

* Remove some verbose block write channel logs

* Only warn about tracing endpoint if the address is actually set

* Use CloneError instead of formatting a non-cloneable error

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>

* Increase block verify timeout

* Work around a known block timeout bug by using a shorter timeout

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Marek <mail@marek.onl>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-10-11 19:25:45 +00:00
Arya ec115e930f
change(zebrad): opens the database in a blocking tokio thread, which allows tokio to run other tasks (#5228)
* use spawn_blocking to run zebra_state::init from start cmd

* uses zebra_state::spawn_init in copy-state command

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-09-26 15:45:42 +00:00
Arya 3ff56c22cd
adds start as default subcommand for zebrad (#4957)
* adds start as default subcommand for zebrad

* moves EntryPoint to submodule and adds a test

* moves all start tests to config_test to avoid listener conflicts

* Update zebrad/src/application/entry_point.rs docs

* Revert "moves all start tests to config_test to avoid listener conflicts"

This reverts commit 61ce46f5a1.

* Update based on test API changes from another PR

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-08-30 09:01:33 +00:00
teor 87f4308caf
fix(sync): Temporarily set full verification concurrency to 30 blocks (#4726)
* Return the maximum checkpoint height from the chain verifier

* Return the verified block height from the sync downloader

* Track the verified height in the syncer

* Use a lower concurrency limit during full verification

* Get the tip from the state before the first verified block

* Limit the number of submitted download and verify blocks in a batch

* Adjust lookahead limits when transitioning to full verification

* Keep unused extra hashes and submit them to the downloader later

* Remove redundant verified_height and state_tip()

* Split the checkpoint and full verify concurrency configs

* Decrease full verification concurrency to 5 blocks

10 concurrent blocks causes 3 minute stalls on some blocks on my machine.
(And it has about 4x as many cores as a standard machine.)

* cargo +stable fmt --all

* Remove a log that's verbose with smaller lookahead limits

* Apply the full verify concurrency limit to the inbound service

* Add a summary of the config changes to the CHANGELOG

* Increase the default full verify concurrency limit to 30
2022-07-06 10:13:57 -04:00
teor d4b9353d67
feat(log): Show the current network upgrade in progress logs (#4694)
* Improve time logging using humantime

* Only log full seconds, ignore the fractional part

* Move humantime_seconds to tracing::fmt

* Move the progress task to its own module

* Add missing humantime dependency

* Log the network upgrade in progress logs

* Log when Zebra verifies the final checkpoint
2022-06-28 02:51:41 +00:00
Alfredo Garcia 769d069d0a
feat(state): delete old database directories (#4586)
* delete old database directories

* check if state directory exists

* skip deleting when ephemeral

* split `check_and_delete_old_databases`

* move `check_and_delete_old_databases` to state

* spawn `check_and_delete_old_databases`

* simplity a bit

* fix(state): only delete old database directories inside the cache directory (#4631)

* Add function comments, tweak log

* Simplify version parsing

* Use spawn_blocking to launch the task on a separate thread, do the cleanup last

* Abort the cleanup task when Zebra exits

* Split directory deletion into its own function, handle ownership

* Rename cache_dir to state_dir

* If an outdated state directory is outside the cache directory, don't delete it

* Minimise diffs

* add test

* fix typos

Co-authored-by: teor <teor@riseup.net>

* add `canonicalize` to test regex

* add another match to test

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-06-21 00:59:51 +00:00
teor 29e73b3f3e
breaking(diagnostics): make zebrad diagnostics into optional compile-time features (#4539)
* Disable the flamegraph feature by default at compile time

* Disable the journald feature by default at compile time

* Also disable inferno dependency, and rearrange features

* Disable the prometheus feature by default at compile time

* Disable the tracing filter reload feature by default at compile time

* Disable tests when corresponding features are disabled

* Add compile-time tracing features to user docs

* Add compile-time features to the metrics user docs

* Document diagnostics as part of the start command tasks and services

* breaking(diagnostics): rename "enable-sentry" feature to "sentry" (#4623)

* Also skip conflict tests when those ports are disabled

* breaking(diagnostics): rename "enable-sentry" feature to "sentry"

This is mostly:
```sh
fastmod enable-sentry sentry
```

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-06-16 19:56:40 +00:00
Alfredo Garcia d09769714f
feat(rpc): Implement an RPC transaction queue (#4015)
* Add a rpc queue

* Implement the rpc queue

* Add rpc queue tests

* Remove mutex, use broadcast channel

* Have order and limit in the queue

* fix multiple transactions channel

* Use a network argument

* Use chain tip to calculate block spacing

* Add extra time

* Finalize the state check test

* Add a retry test

* Fix description

* fix some docs

* add additional empty check to `Runner::run`

* remove non used method

* ignore some errors

* fix some docs

* add a panic checker to the queue

* add missing file changes for panic checker

* skip checks and retries if height has not changed

* change constants

* reduce the number of queue test cases

* remove suggestion

* change best tip check

* fix(rpc): Check for panics in the transaction queue (#4046)

* Check for panics in the RPC transaction queue

* Add missing pin! and abort in the start task

* Check for transaction queue panics in tests

* Fixup a new RPC test from the main branch

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-04-12 15:06:29 +10:00
teor 641f488915
2a. refactor(rpc): Add the ChainTip and Network to RpcImpl (#3863)
* Add the ChainTip and Network to RpcImpl

* Add the new RpcImpl fields to the tests

* Simplify RPC version field using generics

* Temporarily allow unused struct fields
2022-03-16 08:29:15 +10:00
teor 5c62dd62cd
1. feat(state): Use ReadStateService for RPCs (#3847)
* Use the read-only state service for RPCs

* Refactor non-finalized block lookup into Chain

* Implement the read-only state block request

* Drop the Chain watch channel lock before accessing the finalized state
2022-03-15 16:50:28 -03:00
teor 9ad47d1081
7. feat(state): add a read-only state service stub (#3835)
* Add state service module docs and cleanup

* Move and add finalized state methods

* Add chain and non-finalized state methods

* Cleanup methods and imports

* Create a ReadStateService type

* Add a stub service implementation

* Add a TODO

* Update ReadStateService request stubs with RPC names and tickets

* Documentation updates

* Make RPC State generic bounds accept a buffered state and a read-only state

* Doc updates

* Add missing proptest-impl feature in RPC dev dependencies
2022-03-11 10:58:22 -03:00
Alfredo Garcia 833560411f
feature(rpc): implement getblock api call (#3707)
* feature(rpc): start adding a `getblock` method

* fix(rpc): replace oneshot

* fix(rpc): replace a panic with error

* fix(rpc): fix test

* feature(rpc): add hex to response

* refactor(rpc): use generic instead of alias

* docs(rpc): improve docs for getblock method

* test(rpc): add a test for getblock method

* deps(rpc): remove non needed tower features

Co-authored-by: teor <teor@riseup.net>

* docs(rpc): add a note to getblock doc

* refactor(rpc): replace alias

* fix(rpc): use `zcash_serialize_to_vec()` instead of logging format

* tests(rpc): add network argument to `populated_state()`

* refactor(rpc): use an error for state service readiness

* fix(rpc): add parameter

* fix(rpc): clippy

* nit(rpc): remove new line from imports

* fix(rpc): remove commented code

* fix(rpc): simplify error

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

* Use a `SerializedBlock` type to help serializing blocks (#3725)

* Create a `SerializedBlock` helper type

Create a type that can be used as a byte slice, but is guaranteed to
represent a valid block.

* Use `into_iter` instead of `iter`

There's no need to borrow the elements, they can be moved out directly.
This will be necessary because `&Arc<T>` doesn't implement `Borrow<T>`,
so a `SerializedBlock` can't be built directly from an `&Arc<Block>`.

* Use `SerializedBlock` in `GetBlock`

Make the type stricter to avoid storing possibly invalid values. The
bytes are still serialized as a hexadecimal string, through the usage of
`hex`.

The `serde::Deserialize` can't be derived because `hex` requires the
type to also implement `FromHex`.

* feature(rpc): add suggestions from code review

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

* tests(rpc): make sure mempool has no requests in get_block test

* fix(rpc): change height argument type in getblock method

* fix(rpc): rustfmt

* fix(rpc): replace panic

* fix(rpc): change getblock response

* fix(rpc): fix lightwalletd test

* tests(rpc): add a getblock error test

* fix(rpc): try another regex

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
2022-03-10 01:12:41 +00:00
Janito Vaqueiro Ferreira Filho 0e0aefaa4e
Refactor `SentTransactionHash` to be a stricter type (#3706)
* Stub `sendrawtransaction` RPC method

Register the RPC method, and stub an implementation that currently just
panics. The method has a single `String` parameter with the hexadecimal
string of the raw transaction's bytes and returns a
`SentTransactionHash` wrapper type that's just a hexadecimal `String` of
the sent transaction's hash.

* Add mempool service instance to `RpcImpl`

Use a type parameter to represent the mempool service using the
interface defined by `zebra-node-services`.

* Update test vector to use a mock mempool service

Update the test to be compatible with the changes to `RpcImpl`. The mock
mempool service is expected to not be used during the test.

* Use a `tower::Buffer` for the mempool service

Make it simpler to send requests to the service in a concurrent manner.

* Return a `Future` from `send_raw_transaction`

Make the call asynchronous.

* Implement `sendrawtransaction` RPC

Deserialize the transaction and send it to be queued for verification
and subsequent inclusion in the mempool.

* Test if mempool receives sent raw transaction

Use a mock service as the mempool service and check that it receives a
sent raw transaction.

* Test using non-hexadecimal string parameter

The method should return an error.

* Test with bytes that fail deserialization

Check that the method returns an invalid parameters error if the input
can't be deserialized as a `Transaction`.

* Test if mempool errors are forwarded to caller

Mempool service errors should be sent back to the remote caller as
server errors.

* Test transactions rejected by the mempool service

Transactions that are rejected by the mempool service should result in
a server error being sent to the caller.

* Improve error message

Add the word "structurally" to make it clear that the issue is in the
transaction's deserialization.

Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>

* Add note regarding missing `allowhighfees` param.

The parameter isn't supported yet because `lightwalletd` doesn't use it.

* Update the documentation to be consistent

Follow the convention adopted by the `get_info` RPC method.

* Implement `ToHex` and `FromHex` for `Hash`

Make it easier to generate hexadecimal strings from `transaction::Hash`
instances.

* Use `ToHex` in `Debug` and `Display`

Reduce repeated code.

* Refactor to add `bytes_in_display_order` method

Use it to remove repeated code and improve clarity a bit.

* Use `hex::serialize` to serialize transaction hash

Make the type stricter in its contents, while still serializing the
transaction has as a hexadecimal string.

* Simplify serialization attribute

Deserialization should also use `hex::deserialize`, so using the shorter
attribute makes things easier to read and more future proof.

* Update zebra-chain/src/transaction/hash.rs

* Remove unnecessary lifetime

The anonymous lifetime is automatically inferred by the compiler.

Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
2022-03-08 09:14:21 +00:00
Janito Vaqueiro Ferreira Filho ba8797e659
Implement `sendrawtransaction` RPC (#3685)
* Stub `sendrawtransaction` RPC method

Register the RPC method, and stub an implementation that currently just
panics. The method has a single `String` parameter with the hexadecimal
string of the raw transaction's bytes and returns a
`SentTransactionHash` wrapper type that's just a hexadecimal `String` of
the sent transaction's hash.

* Add mempool service instance to `RpcImpl`

Use a type parameter to represent the mempool service using the
interface defined by `zebra-node-services`.

* Update test vector to use a mock mempool service

Update the test to be compatible with the changes to `RpcImpl`. The mock
mempool service is expected to not be used during the test.

* Use a `tower::Buffer` for the mempool service

Make it simpler to send requests to the service in a concurrent manner.

* Return a `Future` from `send_raw_transaction`

Make the call asynchronous.

* Implement `sendrawtransaction` RPC

Deserialize the transaction and send it to be queued for verification
and subsequent inclusion in the mempool.

* Test if mempool receives sent raw transaction

Use a mock service as the mempool service and check that it receives a
sent raw transaction.

* Test using non-hexadecimal string parameter

The method should return an error.

* Test with bytes that fail deserialization

Check that the method returns an invalid parameters error if the input
can't be deserialized as a `Transaction`.

* Test if mempool errors are forwarded to caller

Mempool service errors should be sent back to the remote caller as
server errors.

* Test transactions rejected by the mempool service

Transactions that are rejected by the mempool service should result in
a server error being sent to the caller.

* Improve error message

Add the word "structurally" to make it clear that the issue is in the
transaction's deserialization.

Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>

* Add note regarding missing `allowhighfees` param.

The parameter isn't supported yet because `lightwalletd` doesn't use it.

* Update the documentation to be consistent

Follow the convention adopted by the `get_info` RPC method.

* Remove mempool service usage line

It contained incomplete information that's not really necessary.

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>

* Fix formatting

`rustfmt` was not executed on the file for the previous commit because I
had edited it on GitHub.

Co-authored-by: Deirdre Connolly <durumcrustulum@gmail.com>
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2022-03-04 03:00:24 -04:00
Alfredo Garcia 675fa3621d
tests(rpc): Add some RPC acceptance tests (#3641)
* tests(rpc): add an rpc endpoint test

* tests(rpc): add an rpc port conflict test

* tests(rpc): refactor some imports

* tests(rpc): fix failures, make test more complete

* tests(rpc): parse json response for better coverage

* tests(rpc): change request

* tests(rpc): wait until port is open in rpc_endpoint test

* tests(rpc): add a delay between launching 2 nodes

* tests(rpc): try 5 seconds

* refactor(rpc): open rpc server faster

* tests(rpc): extend `LAUNCH_DELAY` to 15 seconds

* fix(rpc): disable rpc_conflict test for windows

* fix(ci): skip the RPC tests if the network is disabled

* rustfmt

* fix(zebrad/test): test function return type

* tests(rpc): print server output in assert

* fix(rpc): fix acceptance test looking for string in `build` field

* fix(rpc): reduce the number of acceptable characters in version output

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-03-03 00:39:47 +00:00
Alfredo Garcia b3eb38d279
feature(rpc): add real data to `getinfo` method (#3660)
* feature(rpc): add getinfo subversion field and getinfo docs

* feature(rpc): add getinfo build field

* refactor(rpc): replace the lazy_static

* docs(rpc): fic typo, add link to zcashd ticket

* tests(rpc): add getinfo unit test

* docs(rpc): complete comment
2022-03-01 03:32:32 +00:00
Alfredo Garcia 8e36686cc3
feature(rpc): add an rpc server to Zebra (#3589)
* feature(rpc): add an rpc component

* feat(rpc): add a stub for getblockchaininfo

This is the first RPC used by lightwalletd, so we need it for testing.

* fix(rpc): remove non-standard "jsonrpc: 1.0" from lightwalletd

* fix(rpc): re-enable default RPC security checks

* deps(rpc): remove not needed dependency

* fix(rpc): check if RPC task has stopped

* fix(rpc): reduce config by using Option

* fix(rpc): use tokio executor

* security(rpc): turn off rpc by default

* docs(rpc): update a TODO comment

Co-authored-by: teor <teor@riseup.net>

* fix(rpc): blocking tasks

Co-authored-by: teor <teor@riseup.net>

* rename(rpc): rpc.rs to methods.rs

* refactor(rpc): move the server to the zebra-rpc crate

* fix(rpc): clippy derive Default for RPC Config

* fix(dependencies): remove unused dependency features in zebra-rpc

We expect to use all the listed tokio features
to implement and test RPC methods.

* doc(rpc): fix testnet port, add security note

* fix(rpc): change Rust function names and update method doc TODOs

* fix(rpc): add "TODO" to fake RPC responses

* doc(rpc): update module docs

* fix(rpc): simplify server struct derives

* fix(rpc): simplify server code

* doc(rpc): explain how request fixes securely handle user-supplied data

* refactor(rpc): move the compatibility fix to a separate module

* fix(rpc): move the open log inside the spawn, and instrument it

* doc(rpc): fix toml format and provide a config example

Co-authored-by: teor <teor@riseup.net>
2022-02-22 08:26:29 -03:00
teor 5c60528b84
fix(test): make full sync test more accurate (#3555)
* feat(log): log current height when logging sync progress

* fix(test): log the specific error when full sync tests fail

* doc(start): remove an obsolete TODO

We can't decrease this log level, because the tests rely on it.

* fix(test): wait until mempool activates in full sync tests

Changes the log message and log test so that the test only finishes
when the mempool has activated.

There is still a race condition here, between the log timer and
mempool activation. But it should be very rare, because the mempool
is activated immediately when `is_close_to_tip()` becomes true.

* fix(test): warn when Zebra stalls below the maximum checkpoint height

This also improves the full sync tests,
because the warning is checked before logging a successful sync.

* feat(log): warn when sync stalls downloading the genesis block

* fix(test): warn when the state hasn't committed a block for a long time

This also improves the full sync tests,
because the warning is checked before logging a successful sync.

* doc(test): update some sync acceptance test comments

* fix(log): use Display formatting to log chrono::Duration

Debug formatting is complicated and hard to read.

* fix(log): stop saying that we've activated the mempool without checking it

We're not checking if the mempool is active, so we can't say that.

* fix(log): minor tidying and TODOs

* fix(doc): fix a typo in the tests

* fix(log): explain the post-checkpoint blocks in progress warning calculations

* fix(doc): explain what could happen if we don't wait for extra blocks

* fix(log): add a percent symbol to a percent log

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>
2022-02-18 02:00:24 +00:00
teor 20ac7b1cae
Chain Tip Estimate Test: Log chain progress while Zebra is syncing (#3495)
* Log chain progress while Zebra is syncing

This helps test if the chain tip estimate is accurate,
and helps diagnose problems during full sync tests.

* Update to the latest chain tip estimate API
2022-02-12 23:43:12 +00:00
teor fa071562fd
fix(network): increase state concurrency and syncer lookahead (#3455)
* fix(state): set state concurrency based on other services' concurrency

* fix(sync): increase the sync downloader lookahead limit

It seems like the recent tokio upgrade made this code even more efficient,
so on testnet we can have around 6000 blocks in flight.

Co-authored-by: mergify[bot] <37929162+mergify[bot]@users.noreply.github.com>
2022-02-02 22:44:15 +00:00
Alfredo Garcia e5b5ea5889
feat(log): log the state tip height as part of sync progress logs (#3437)
* feat(log): log the state tip height as part of sync progress logs

* fix(log): downgrade some verbose state logs to debug

* feat(log): log successful gossiped block verification at info level

These logs help us diagnose slow progress near the tip.

There won't be very many of these logs,
because they only happen near the tip.

* fix(log): spawn top-level tasks within the global Zebra tracing span

* fix(log): spawn blocking top-level tasks within the global Zebra tracing span

Co-authored-by: teor <teor@riseup.net>
2022-01-28 19:12:19 -03:00
teor e1f8380ef5
Document the structure of the `zebra-network` crate (#3317) 2022-01-20 13:43:23 +00:00
teor d076b999f3
Fix syncer download order and add sync tests (#3168)
* Refactor so that RetryLimit::Future is std::marker::Sync

* Make the syncer future std::marker::Send by spawning tips futures

* Download synced blocks in chain order, not HashSet order

* Improve MockService failure messages

* Add closure-based responses to the MockService API

* Move MockChainTip to zebra-chain

* Add a MockChainTipSender type alias

* Support MockChainTip in ChainSync and its downloader

* Add syncer tests for obtain tips, extend tips, and wrong block hashes

* Add block too high tests for obtain tips and extend tips

* Add syncer tests for duplicate FindBlocks response hashes

* Allow longer request delays for mocked services in syncer tests
2022-01-11 14:11:35 -03:00
teor 3b75e912d1
Add a copy-state zebrad command, which copies blocks between two state services (#3175)
* Add a copy-state command, which copies blocks between two state services

* Check blocks were written correctly

* Add extra logging to debug shutdown

* Add a block height limit argument

* Let the target state start from any height

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2021-12-22 02:07:52 +00:00
teor a4d1a1801c
Security: Drop blocks that are a long way ahead of the tip (#3167)
* Document the chain verifier

* Drop gossiped blocks that are too far ahead of the tip

* Add extra gossiped block metrics

* Allow extra gossiped blocks, now we have a stricter limit

* Fix a comment

* Check the exact number of blocks in a downloaded block response

* Drop synced blocks that are too far ahead of the tip

* Add extra synced block metrics

* Test dropping gossiped blocks that are too far ahead of the tip

* Allow an extra checkpoint's worth of blocks in the verifier queues

* Actually let's try two extra checkpoints

* Scale extra height limit with lookahead limit

* Also drop blocks that are behind the finalized tip

* Downgrade a noisy log

* Use a debug log for already verified gossiped blocks

* Use debug logs for already verified synced blocks
2021-12-17 13:31:51 -03:00
Alfredo Garcia f01e5bb817
Add and use `debug_skip_parameter_preload` config option (#3197)
* add and use a config option to skip groth16 parameters download

* correct doc

* enable parameters download in `sync_past_mandatory_checkpoint` test

* change logging location

* fix import

* add argument to `create_cached_database_height()`

Co-authored-by: teor <teor@riseup.net>
2021-12-14 21:43:07 +00:00
teor 37808eaadb
Security: When there are no new peers, stop crawler using CPU and writing logs (#3177)
* Stop useless crawler attempts when there are no peers and no crawl responses

* Disable GitHub bug report URLs when the disk is full

* Add help text for the `zebrad start` tracing filter option
2021-12-10 00:19:52 +00:00
teor c85ea18b43
Fix slow Zebra startup times, to reduce CI failures (#3104)
* Tweak a log message

* Only retry failed DNS once, then use the other DNS responses

* Limit broadcasts to half the peers

* Use a longer minimum interval for GetAddr requests

* Reduce the syncer and mempool crawler fanouts

* Stop resetting the mempool twice when it starts up

This spawns two crawlers, which send two fanouts,
so it can use up a lot of peers.

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2021-11-30 21:04:32 +00:00
teor 0ef4629232
Automatically download and load sprout parameters (#3085)
* Download and load Sprout parameters using zcash_proofs

Also update some librustzcash dependencies, to avoid duplicate dependencies.

* Update upstream orchard to avoid a compilation error

* Skip librustzcash batch refactor for now, to avoid compilation errors

* Change the cache ID, so we actually cache Sprout

* Move existing file checks into zcash_proofs

* Add a 1 hour timeout to parameter file downloads

* Give other tasks priority, before spawning the download task

* Update to the latest version of our modified librustzcash fork

* Change the cache key for Sprout

* Add 40 minutes to CI timeouts for occasional sprout downloads

* Update to zcash_proofs with split downloads

* Check file sizes to help debug parameter load failures in zcash_proofs

* Start the second download once the first has finished in zcash_proofs

* Document the parameter download task

* Stop hashing existing files twice
2021-11-25 13:26:32 -03:00
teor 68d7198e9f
Re-order Zebra startup, so slow services are launched last (#3091)
* Start network before verifiers

This makes the Groth16 download task start as late as possible.

* Explain why the Groth16 download must happen first

* Speed up Zebra shutdown: skip waiting for the tokio runtime
2021-11-23 17:42:44 +00:00
teor f7202bfbc0
Download Zcash Sapling parameters and load them from cached files (#3057)
* Replace Zcash parameters crates with pre-downloaded local parameter files

* Download Zcash parameters using the `zcashd` script in CI and Docker

* Add a zcash_proofs dependency to zebra-consensus

* Download Sapling parameters using zcash_proofs, rather than fetch-params.sh

* Add a new `zebrad download` subcommand

This command isn't required for nomrmal usage.
But it's useful when testing, or launching multiple Zebra instances.

* Use `zebrad download` in CI to pre-download parameters

* Log a helpful hint if downloading fails

* Allow some duplicate dependencies currently hidden by orchard

* Spawn a separate task to download Groth16 parameters

* Run the parameter download with code coverage

This avoids re-compining Zebra with and without coverage.

* Update Cargo.lock after rebase

* Try to pass `download` as an argument to `zebrad` in coverage CI

* Fix copy and paste comment typos

* Add path and download examples, like zcash_proofs

* Download params in CI just like zcash_proofs does

* Delete a redundant build step

* Implement graceful shutdown for zebrad start

* Send coverage summary to /dev/null when getting the params path

* Use the correct parameters path and download commands in CI

* Explain pre-downloads

* Avoid calling params_folder twice

* Rename parameter types and methods for consistency

```sh
fastmod SaplingParams SaplingParameters zebra*
fastmod Groth16Params Groth16Parameters zebra*
fastmod PARAMS GROTH16_PARAMETERS zebra*
fastmod params_folder directory zebra*
```

And a manual variable name tweak.

* rustfmt

* Remove a redundant coverage step

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
2021-11-19 23:02:56 +00:00
teor 303c8cf5ef
Add a queue checker task, to make sure mempool transactions propagate (#2888)
* Guarantee unique IDs in mempool service responses

* Guarantee unique IDs in crawler task mempool Queue requests

Also update the tests to use unique IDs.

* Add a CheckForVerifiedTransactions mempool request

Also document the mempool request and response variants.

* Spawn a QueueChecker task to check for newly verified transactions

This task makes sure that transactions reliably propagate,
rather than relying on peer requests or responses to trigger propagation.

* Update the start command documentation

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2021-10-18 19:23:21 +00:00
teor b64ed62777
Add a debug config that enables the mempool (#2862)
* Update some comments

* Add a mempool debug_enable_at_height config

* Rename a field in the mempool crawler

* Propagate syncer channel errors through the crawler

We don't want to ignore these errors, because they might indicate a shutdown.
(Or a bug that we should fix.)

* Use debug_enable_at_height in the mempool crawler

* Log when the mempool is activated or deactivated

* Deny unknown fields and apply defaults for all configs

* Move Duration last, as required for TOML tables

* Add a basic mempool acceptance test

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2021-10-13 15:04:49 +00:00
teor b274ee4066
Pass the mempool config to the mempool (#2861)
* Split mempool config into its own module

Also:
- expand config docs
- clean up mempool imports

* Pass the mempool config to the mempool

* Create the transaction sender channel inside the mempool 1/2

This simplifies all the code that calls the mempool.

Also:
- update the mempool enabled state before returning the new mempool
- add some test module doc comments

* Refactor a setup function out of the mempool unit tests 2/2

Also:
- update the setup function to handle the latest mempool changes

* Clarify a comment

Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2021-10-12 17:31:54 +00:00
Alfredo Garcia 724967d488
Send `AdvertiseTransactionIds` to peers (#2823)
* bradcast transactions to peers after they get inserted into mempool

* remove network argument from mempool init

* remove dbg left

* remove return value in mempool enable call

* rename channel sender and receiver vars

* change unwrap() to expect()

* change the channel to a hashset

* fix build

* fix tests

* rustfmt

* fix tiny space issue inside macro

Co-authored-by: teor <teor@riseup.net>

* check errors/panics in transaction gossip tests

* fix build of newly added tests

* Stop dropping the inbound service and mempool in a test

Keeping the mempool around avoids a transaction broadcast task error,
so we can test that there are no other errors in the task.

* Tweak variable names and add comments

* Avoid unexpected drops by returning a mempool guard in tests

* Use BoxError to simplify service types in tests

* Make all returned service types consistent in tests

We want to be able to change the setup without changing the tests.

Co-authored-by: teor <teor@riseup.net>
2021-10-08 08:59:46 -03:00
teor 04d2cfb3d0
Gossip recently verified block hashes to peers (#2729)
* Implement a task that gossips verified block hashes

* Log an info message for block broadcasts

* Simplify the gossip task

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

* Re-use the old tip change if there is no new tip change

Also improve the comments.

* Add an assertion message

* Rename task join handles and futures in start method

* Add a dedicated BlockGossipError type

This type helps distinguish between syncer and state errors.

* Test that committed blocks are gossiped to peers

Also do a minor type cleanup on the existing test code,
replacing `Option<Vec<_>>` with `Vec<_>`.

* Formatting

* Remove excess newlines

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>

* Clear the initial gossiped blocks during test setup

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
2021-10-07 07:46:37 -03:00
Janito Vaqueiro Ferreira Filho 5d9893cf31
Send crawled transaction IDs to downloader (#2801)
* Rename type parameter to be more explicit

Replace the single letter with a proper name.

* Remove imports for `Request` and `Response`

The type names will conflict with the ones for the mempool service.

* Attach `Mempool` service to the `Crawler`

Add a field to the `Crawler` type to store a way to access the `Mempool`
service.

* Forward crawled transactions to downloader

The crawled transactions are now sent to the transaction downloader and
verifier, to be included in the mempool.

* Derive `Eq` and `PartialEq` for `mempool::Request`

Make it simpler to use the `MockService::expect_request` method.

* Test if crawled transactions are downloaded

Create some dummy crawled transactions, and let the crawler discover
them. Then check if they are forwarded to the mempool to be downloaded
and verified.

* Don't send empty transaction ID list to downloader

Ignore response from peers that don't provide any crawled transactions.

* Log errors when forwarding crawled transaction IDs

Calling the Mempool service should not fail, so if an error happens it
should be visible. However, errors when downloading individual
transactions can happen from time to time, so there's no need for them
to be very visible.

* Document existing `mempool::Crawler` test

Provide some depth as to what the test expect from the crawler's
behavior.

* Refactor to create `setup_crawler` helper function

Make it easier to reuse the common test setup code.

* Simplify code to expect requests

Now that `zebra_network::Request` implement `Eq`, the call can be
simplified into `expect_request`.

* Refactor to create `respond_with_transaction_ids`

A helper function that checks for a network crawl request and responds
with the given list of crawled transaction IDs.

* Refactor to create `crawler_iterator` helper

A function to intercept and respond to the fanned-out requests sent
during a single crawl iteration.

* Refactor to create `respond_to_queue_request`

Reduce the repeated code necessary to intercept and reply to a request
for queuing transactions to be downloaded.

* Add `respond_to_queue_request_with_error` helper

Intercepts a mempool request to queue transactions to be downloaded, and
responds with an error, simulating an internal problem in the mempool
service implementation.

* Derive `Arbitrary` for `NetworkUpgrade`

This is required for deriving `Arbitrary` for some error types.

* Derive `Arbitrary` for `TransactionError`

Allow random transaction errors to be generated for property tests.

* Derive `Arbitrary` for `MempoolError`

Allow random Mempool errors to be generated for property tests.

* Test if errors don't stop the mempool crawler

The crawler should be robust enough to continue operating even if the
mempool service fails to download transactions or even fails to handle
requests to enqueue transactions.

* Reduce the log level for download errors

They should happen regularly, so there's no need to have them with a
high visibility level.

Co-authored-by: teor <teor@riseup.net>

* Stop crawler if service stops

If `Mempool::poll_ready` returns an error, it's because the mempool
service has stopped and can't handle any requests, so the crawler should
stop as well.

Co-authored-by: teor <teor@riseup.net>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2021-10-05 10:55:42 +10:00
Alfredo Garcia 37595c4b32
Mempool support for transaction expiration (#2774)
* mempool - support transaction expiration

* use `LatestChainTip` instead of state call

* clippy

* remove spawn task

* remove non needed async from function

* remove return value

* add a `expiry_height_mut()` method to `Transaction` for testing purposes

* fix `remove_expired_transactions()`

* add a `mempool_transaction_expiration()` test

* tidy cleanup to `expiry_height()`

* improve docs

* fix the build

* try fix macos build

* extend tests

* add doc to function

* clippy

* fix build

* start tests at block two
2021-09-29 16:52:44 +00:00
Marek 061ad55144
Sneak chain_tip_change into mempool (#2785)
* Pass ChainTipChange to the mempool

* Fix nits
2021-09-21 17:06:52 +00:00
Conrado Gouvea 957e12e4ca
Pass sync_status to mempool (#2754)
* Pass sync_status to mempool

* Update zebrad/src/components/mempool.rs

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>

* Remove enabled flag for now; will be handled in #2723

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2021-09-15 22:13:29 +00:00
Conrado Gouvea 8825a52bb8
Move transaction download and verify stream into the mempool service (#2741)
* Move transaction dowloader and verifier into the mempool service

* add test for `Storage::contains_rejected()`

* Rename DownloadAndVerify->Queue; move should_download_or_verify() to previous impl

* GossipedTx -> Gossip

* Revamp error handling

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2021-09-13 16:28:07 -04:00
Conrado Gouvea a2993e8df0
Skip download and verification if the transaction is already in the mempool or state (#2718)
* Check if tx already exists in mempool or state before downloading

* Reorder checks

* Add rejected test; refactor into separate function

* Wrap mempool in buffered service

* Rename RejectedTransactionsById -> RejectedTransactionsIds

* Add RejectedTransactionIds response; fix request name

* Organize imports

* add a test for Storage::rejected_transactions

* add test for mempool `Request::RejectedTransactionIds`

* change buffer size to 1 in the test

Co-authored-by: Alfredo Garcia <oxarbitrage@gmail.com>
Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
2021-09-08 18:51:17 +00:00
Alfredo Garcia 9c220afdc8
Reply to `Request::MempoolTransactionIds` with mempool content (#2720)
* reply to `Request::MempoolTransactionIds`

* remove boilerplate

* get storage from mempool with a method

* change panic message

* try fix for mac

* use normal init instead of init_tests for state service

* newline

* rustfmt

* fix test build
2021-09-02 13:42:31 +00:00
Conrado Gouvea 1ccb2de7c7
Add transaction downloader and verifier (#2679)
* Add transaction downloader

* Changed mempool downloader to be like inbound

* Verifier working (logs result)

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Apply suggestions from code review

Co-authored-by: teor <teor@riseup.net>

* Fix coinbase check for mempool, improve is_coinbase() docs

* Change other downloads.rs docs to reflect the mempool downloads.rs changes

* Change TIMEOUTs to downloads.rs; add docs

* Renamed is_coinbase() to has_valid_coinbase_transaction_inputs() and contains_coinbase_input() to has_any_coinbase_inputs(); reorder checks

* Validate network upgrade for V4 transactions; check before computing sighash (for V5 too)

* Add block_ prefix to downloads and verifier

* Update zebra-consensus/src/transaction.rs

Co-authored-by: teor <teor@riseup.net>

* Add consensus doc; add more Block prefixes

Co-authored-by: teor <teor@riseup.net>
2021-09-02 00:06:20 +00:00
teor b6fe816473
Add a `ChainTipChange` type to `await` chain tip changes (#2715)
* Rename ChainTipReceiver to CurrentChainTip

`fastmod ChainTipReceiver CurrentChainTip zebra*`

* Update chain tip documentation and variable names

* Basic chain tip change implementation, without resets

Also includes the following name changes:
```
fastmod CurrentChainTip LatestChainTip zebra*
fastmod chain_tip_receiver latest_chain_tip zebra*
```

* Clarify the difference between `LatestChainTip` and `ChainTipChange`
2021-09-01 22:31:16 +00:00
Janito Vaqueiro Ferreira Filho 8bff71e857
Only enable the mempool crawler after synchronization reaches the chain tip (#2667)
* Store a `SyncStatus` handle in the `Crawler`

The helper type will make it easier to determine if the crawler is
enabled or not.

* Pause crawler if mempool is disabled

Implement waiting until the mempool becomes enabled, so that the crawler
does not run while the mempool is disabled.

If the `MempoolStatus` helper is unable to determine if the mempool is
enabled, stop the crawler task entirely.

* Update test to consider when crawler is paused

Change the mempool crawler test so that it's a proptest that tests
different chain sync. lengths. This leads to different scenarios with
the crawler pausing and resuming.

Co-authored-by: teor <teor@riseup.net>
2021-08-31 10:42:25 +00:00
Janito Vaqueiro Ferreira Filho 83a2e30e33
Create a `SyncStatus` helper type (#2685)
* Create a `SyncStatus` helper type

Keeps track if the synchronizer is close to the chain tip or not.

* Refactor `ChainSync` ctor. to return `SyncStatus`

Change the constructor API so that it returns a higher level construct.

* Test if `SyncStatus` waits for the chain tip

Test if waiting for the chain tip to be reached correctly finishes when
the chain tip is reached. This is done by sending recent sync lengths to
the `SyncStatus` instance, and checking that every time a separate
`SyncStatus` instance determines it has reached the tip the original
instance wakes up.

* Add a temporary attribute to allow dead code

The code added isn't used yet, so we'll add a temporary waiver until
another PR is merged to use them.
2021-08-30 10:01:33 +10:00
teor d2e14b22f9
Refactor BestTipHeight into a generic ChainTip sender and receiver (#2676)
* Rename BestTipHeight so it can be generalised to ChainTipSender

`fastmod BestTipHeight ChainTipSender zebra*`

For senders:
`fastmod best_tip_height chain_tip_sender zebra*`

For receivers:
`fastmod best_tip_height chain_tip_receiver zebra*`

* Rename best_tip_height module to chain_tip

* Wrap the chain tip watch channel in a ChainTipReceiver type

* Create a ChainTip trait to avoid tricky crate dependencies

And add convenience impls for optional and empty chain tips.

* Use the ChainTip trait in zebra-network

* Replace `Option<ChainTip>` with `NoChainTip`

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

Co-authored-by: Janito Vaqueiro Ferreira Filho <janito.vff@gmail.com>
2021-08-27 11:34:33 +10:00
teor ace7aec933
Return a transaction verifier from `zebra_consensus::init` (#2665)
* Return a transaction verifier from `zebra_consensus::init`

This verifier is temporarily created separately from the block verifier's
transaction verifier.

* Return the same transaction verifier used by the block verifier

* Clarify that the mempool verifier is the transaction verifier

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>

Co-authored-by: Deirdre Connolly <deirdre@zfnd.org>
Co-authored-by: Conrado Gouvea <conrado@zfnd.org>
2021-08-25 15:07:26 +00:00