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Add decompression traits and a test case #2295

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@Dentosal Dentosal commented Oct 4, 2024

#1609 (comment)

Add a test case for decompressing DA-compressed blocks. FIx CombinedDb::from_config to respects state_rewind_policy with tmp RocksDB.

@Dentosal Dentosal self-assigned this Oct 4, 2024
@Dentosal Dentosal added the no changelog Skip the CI check of the changelog modification label Oct 5, 2024
Base automatically changed from dento/da-compression to master October 5, 2024 17:29
@Dentosal Dentosal force-pushed the dento/da-compression-decompress-test branch from fb37322 to 72dd40d Compare October 15, 2024 14:35
@Dentosal Dentosal removed the no changelog Skip the CI check of the changelog modification label Oct 15, 2024
@Dentosal Dentosal requested a review from a team October 15, 2024 15:22
netrome
netrome previously approved these changes Oct 15, 2024
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LGTM, one question from me.

@Dentosal Dentosal requested a review from a team October 15, 2024 18:02
on_chain: Database::rocksdb_temp(state_rewind_policy)?,
off_chain: Database::rocksdb_temp(state_rewind_policy)?,
relayer: Database::rocksdb_temp(state_rewind_policy)?,
gas_price: Default::default(),
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out of curiosity, why the difference for the gas_price database?

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@xgreenx might know, I have no idea

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Because gas price table and relayer table doesn't need to support state rewind in the case of the temporary database(right now at least). Because we don't have any logic around it.

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WIP. I want to give it another, deeper pass.

@@ -94,6 +94,19 @@ impl CombinedDatabase {
})
}

/// A test-only temporary rocksdb database with given rewind policy.
#[cfg(feature = "rocksdb")]
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Should this also be "test-helpers" if it's "test-only"?

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Done in 5251318

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I reverted this in beaee56 since it seems like we're using it with when empty path is provided, and I'm not sure if we need that outside tests as well.

};
let decompressed = decompress(compression_config, db_tx, block).await.unwrap();

assert!(decompressed.transactions.len() == 2);
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Might as well check that the second tx matches the one submitted.

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Some fields will differ, as the returned tx would have to be executed to generate full values

tests/tests/da_compression.rs Outdated Show resolved Hide resolved
crates/fuel-core/src/graphql_api/da_compression.rs Outdated Show resolved Hide resolved
Comment on lines +115 to +123
let db = &srv.shared.database;
let mut tx_inner = db.off_chain().clone().into_transaction();
let db_tx = DecompressDbTx {
db_tx: DbTx {
db_tx: &mut tx_inner,
},
onchain_db: db.on_chain().view_at(&0u32.into()).unwrap(),
};
let decompressed = decompress(compression_config, db_tx, block).await.unwrap();
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I guess I'm a little confused by using the shared db for decompressing the info. Shouldn't we be able to decompress it with an isolated, clean db?

Maybe that's not the point of this test.

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decompression requires some previous indexation to be done on the data, it can't be done from an empty database afaiu

rafal-ch
rafal-ch previously approved these changes Oct 16, 2024
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LGTM 👍

crates/fuel-core/src/graphql_api/da_compression.rs Outdated Show resolved Hide resolved
crates/fuel-core/src/graphql_api/da_compression.rs Outdated Show resolved Hide resolved
state_rewind_policy: StateRewindPolicy,
) -> DatabaseResult<Self> {
Ok(Self {
on_chain: Database::rocksdb_temp(state_rewind_policy)?,
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perhaps we should use ShallowTempDir here? we moved it from fuel-core to the benches crate but if the use case is the same we can use it

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What's the reason behind this?

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because we have a way to clean up the directory after shutdown.. not sure if this method deletes the db after we are done with it.

Comment on lines +115 to +123
let db = &srv.shared.database;
let mut tx_inner = db.off_chain().clone().into_transaction();
let db_tx = DecompressDbTx {
db_tx: DbTx {
db_tx: &mut tx_inner,
},
onchain_db: db.on_chain().view_at(&0u32.into()).unwrap(),
};
let decompressed = decompress(compression_config, db_tx, block).await.unwrap();
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decompression requires some previous indexation to be done on the data, it can't be done from an empty database afaiu

Co-authored-by: Rafał Chabowski <[email protected]>
@Dentosal Dentosal dismissed stale reviews from rafal-ch and netrome via a7324f7 October 17, 2024 10:11
netrome
netrome previously approved these changes Oct 25, 2024
Dentosal and others added 2 commits October 28, 2024 08:47
This PR extends the `fuel-core` too make public some functionality that
could be useful to reuse in the watchtower
https://github.com/FuelLabs/network-watchtower.

### Before requesting review
- [x] I have reviewed the code myself
crates/fuel-core/src/combined_database.rs Outdated Show resolved Hide resolved
crates/fuel-core/src/combined_database.rs Outdated Show resolved Hide resolved
on_chain: Database::rocksdb_temp(state_rewind_policy)?,
off_chain: Database::rocksdb_temp(state_rewind_policy)?,
relayer: Database::rocksdb_temp(state_rewind_policy)?,
gas_price: Default::default(),
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Because gas price table and relayer table doesn't need to support state rewind in the case of the temporary database(right now at least). Because we don't have any logic around it.

db_tx: DbTx {
db_tx: &mut tx_inner,
},
onchain_db: db.on_chain().view_at(&0u32.into()).unwrap(),
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It would be nice if in the test you highlighted somehow that we use the previous state of the database because it is important detail=)

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Added a comment to that effect in aca530a

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7 participants