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wip: hardcode known stale accounts at Eden
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,81 @@ | ||
| package static | ||
|
|
||
| import ( | ||
| "github.com/oasisprotocol/nexus/analyzer/queries" | ||
| "github.com/oasisprotocol/nexus/analyzer/runtime/evm" | ||
| apiTypes "github.com/oasisprotocol/nexus/api/v1/types" | ||
| "github.com/oasisprotocol/nexus/common" | ||
| "github.com/oasisprotocol/nexus/storage" | ||
| ) | ||
|
|
||
| func staleAccountsList(chainName common.ChainName, runtime common.Runtime) (uint64, []string) { | ||
| // TODO: probably use embed.FS to keep these long list in files, but | ||
| // also include them in the binary. | ||
| // Also name the files something like: {chainName}_{runtime}_{height}_stale_accounts.txt | ||
| // So that the switch below is not needed. | ||
| switch chainName { | ||
| case common.ChainNameMainnet: | ||
| switch runtime { | ||
| case common.RuntimeEmerald: | ||
| return 7875129, []string{} | ||
| case common.RuntimeSapphire: | ||
| // For Sapphire the number of all account at Eden genesis is ~2k, so we could include all. | ||
| return 1357486, []string{} | ||
| default: | ||
| // No known accounts for this runtime. | ||
| return 0, nil | ||
| } | ||
| case common.ChainNameTestnet: | ||
| switch runtime { | ||
| case common.RuntimeEmerald: | ||
| return 2627790, []string{} | ||
| case common.RuntimeSapphire: | ||
| // For Sapphire the number of all account at Eden genesis is ~2k, so we could include all. | ||
| return 2995927, []string{} | ||
| default: | ||
| // No known accounts for this runtime. | ||
| return 0, nil | ||
| } | ||
| default: | ||
| // No known accounts for this chain. | ||
| return 0, nil | ||
| } | ||
| } | ||
|
|
||
| // QueueEVMKnownStaleAccounts queues (known-to-be stale) account lists at specific heights for native token balance update. | ||
| // | ||
| // At the moment, these lists were manually obtained at Eden genesis heights, to mitigate the following issues: | ||
| // - runtimes used to not emit Transfer events for FEE payments | ||
| // - therefore we are unable to dead-reckon these balances, as fee payment was missed | ||
| // | ||
| // - oasis-sdk runtimes used to not emit Transfer events for Reward and Fee disbursements | ||
| // - therefore there exist accounts that have received native balance, but if they never submitted any transactions the Nexus is unaware of them | ||
| // | ||
| // These were fixed sometime during Damask, but for simplicity we take the list of accounts at Eden genesis, which at worst contains additional | ||
| // accounts that were not effected by the above issues. | ||
| // | ||
| // This list also helps partially mitigating the issue of accounts that have only ever interacted within internal EVM transactions (e.g. transfers within evm.Call). | ||
| // This is an ongoing issue where Nexus cannot known about the existence of these accounts as Nexus is unable to simulate EVM transactions. | ||
| // With these lists we at least know about all such accounts at Eden genesis time. | ||
| func QueueEVMKnownStaleAccounts(batch *storage.QueryBatch, chainName common.ChainName, rt common.Runtime) error { | ||
| round, accounts := staleAccountsList(chainName, rt) | ||
| if len(accounts) == 0 { | ||
| return nil | ||
| } | ||
|
|
||
| for _, account := range accounts { | ||
| // Depending on fast-sync configuration different scenarios can happen: | ||
| // - The analyzer has already indexed past the height of these accounts: | ||
| // - The account might have been mutated recently, therefore the below will be a no-op. | ||
| // - The account might have never been mutated (or not in a long time), below will queue it to be required. | ||
| // - The analyzer is behind the height of these accounts: | ||
| // - The account will have `last_mutated_round` set in future and it will periodically be required | ||
| // until the round is reached so that `download_round` >= `last_mutated_round`. | ||
| batch.Queue( | ||
| queries.RuntimeEVMTokenBalanceAnalysisMutateRoundUpsert, | ||
| rt, evm.NativeRuntimeTokenAddress, apiTypes.Address(account), round, | ||
| ) | ||
| } | ||
|
|
||
| return nil | ||
| } |
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