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Optimise slasher DB layout and switch to MDBX (#2776)

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## Issue Addressed

Closes #2286
Closes #2538
Closes #2342

## Proposed Changes

Part II of major slasher optimisations after #2767

These changes will be backwards-incompatible due to the move to MDBX (and the schema change) 😱 

* [x] Shrink attester keys from 16 bytes to 7 bytes.
* [x] Shrink attester records from 64 bytes to 6 bytes.
* [x] Separate `DiskConfig` from regular `Config`.
* [x] Add configuration for the LRU cache size.
* [x] Add a "migration" that deletes any legacy LMDB database.
This commit is contained in:
Michael Sproul
2021-12-21 08:23:17 +00:00
parent a290a3c537
commit 3b61ac9cbf
26 changed files with 963 additions and 566 deletions
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2
slasher/tests/random.rs
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@@ -41,7 +41,7 @@ fn random_test(seed: u64, test_config: TestConfig) {
let tempdir = tempdir().unwrap();
let mut config = Config::new(tempdir.path().into()).for_testing();
let mut config = Config::new(tempdir.path().into());
config.validator_chunk_size = 1 << rng.gen_range(1, 4);
let chunk_size_exponent = rng.gen_range(1, 4);