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Prevent rent-paying account creation #22292
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@jstarry , can you please start looking at this when you have a minute? (There are a bunch of tests that assume it's okay to create rent-paying accounts, so still lots of fixup before formally ready) To answer your question from here (#21142 (comment), and I'm sorry for taking so long to do so!), I prefer this location because this is where the execution result is still being determined, ie. mutable. This actually seems even more stark to me after your refactor; the execution result should be set and unmutable after Also, in order to allow legacy rent-paying accounts, we need to know the state before execution, which will be clunky to pass along to (edit) However, your point about only examining writable accounts is a fair one. Added a commit to do this. Could potentially remove the |
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Less the assert, this is ready for real review! All the test churn should be confined to the one commit "Fix rpc tests...", so feel free to ignore that one. |
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i'll keep my eyes on this. maybe we need to advice all exchanges/wallets beforehand about this upcoming change as this will forbid these kinds of affected small SOL transfers. (anyway, these transfers should be erroneous to begin with). how about adding a small section here: docs/src/integrations/exchange.md (or, i can do as a follow-up). |
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solana-labs#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced.
behzadnouri
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solana-labs#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced.
behzadnouri
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solana-labs#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced.
behzadnouri
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Jul 8, 2022
solana-labs#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced.
behzadnouri
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#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced.
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#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced. (cherry picked from commit c99d9f0) # Conflicts: # runtime/src/accounts.rs # runtime/src/bank.rs # runtime/src/expected_rent_collection.rs # runtime/src/rent_collector.rs
behzadnouri
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#22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced. (cherry picked from commit c99d9f0)
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* names fields in RentResullt::CollectRent enum variant (#26449) Avoiding ambiguous raw tuple: CollectRent((Epoch, u64)) Using named fields instead: CollectRent { new_rent_epoch: Epoch, rent_due: u64, }, (cherry picked from commit d7201a8) # Conflicts: # runtime/src/bank.rs # runtime/src/expected_rent_collection.rs # runtime/src/rent_collector.rs * removes mergify merge conflicts * preserves rent_epoch for rent exempt accounts (#26479) #22292 prevents rent paying account creation going forward. As a result rent_epoch field for rent exempt accounts is redundant, and advancing this field will incur expensive account rewrites and cause discrepancy between accounts-db and cached vote/stake accounts. This commit adds a feature which upon activation preserves rent_epoch field for rent exempt accounts so that the field is frozen and is no longer advanced. (cherry picked from commit c99d9f0) Co-authored-by: behzad nouri <behzadnouri@gmail.com>
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solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. This commit restricts rent-paying accounts TTL extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts TTL extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
This was referenced Jul 13, 2022
behzadnouri
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Jul 13, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts TTL extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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Jul 13, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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Jul 14, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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Jul 14, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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Jul 14, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifeline extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
behzadnouri
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that referenced
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Jul 15, 2022
#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifetime extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
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#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifetime extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum. (cherry picked from commit bf225ba) # Conflicts: # runtime/src/account_rent_state.rs # runtime/src/accounts.rs # runtime/src/bank/transaction_account_state_info.rs # sdk/src/feature_set.rs
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…26635) * restricts rent-paying accounts lifetime extension (#26606) #22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifetime extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum. (cherry picked from commit bf225ba) # Conflicts: # runtime/src/account_rent_state.rs # runtime/src/accounts.rs # runtime/src/bank/transaction_account_state_info.rs # sdk/src/feature_set.rs * removes mergify merge conflicts Co-authored-by: behzad nouri <behzadnouri@gmail.com>
Lcchy
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Jul 22, 2022
solana-labs#22292 prevents rent paying accounts creation going forward. However a rent paying account can linger on for ever if it is continually topped up but stays below the rent-exempt minimum. This can prevent eliminating accounts-rewrites and the problematic rent_epoch field in accounts. Link to discord discussion: https://discord.com/channels/428295358100013066/943609352068145162/995202300001927219 This commit restricts rent-paying accounts lifetime extension by preventing increasing lamports on the account if the account stays below the rent-exempt minimum.
This was referenced Nov 16, 2023
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Problem
A single epoch's worth of rent for an account with data is too little relative to the costs of storing that data.
Summary of Changes
Compare rent-exemption status pre- and post-processing; fail if any end up RentPaying that didn't start that way.
Closes #21142