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stake-pool: Update program to work with minimum delegation #3127

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merged 5 commits into from
May 2, 2022

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joncinque
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Problem

The minimum delegation will be raised with solana-labs/solana#24603, and the minimum reserve amount will be lowered with solana-labs/solana#24670 -- the stake pool program needs to be ready for that!

Solution

Update the minimum active stake amount and the minimum reserve amount as required. This was tested against the changes to raise the minimum delegation to 1 SOL, but not the second PR. The hope is that the only change will be to update MINIMUM_RESERVE_LAMPORTS to 0.

The best option will be to call get_minimum_delegation on the stake program, but that hasn't landed in any of the Solana crates yet.

We can land this PR to unblock solana-labs/solana#24603 if needed, or keep it as a draft. We won't redeploy the program until the new instruction makes it anyway.

@@ -747,7 +745,7 @@ impl Processor {
stake_pool.manager_fee_account = *manager_fee_info.key;
stake_pool.token_program_id = *token_program_info.key;
stake_pool.total_lamports = total_lamports;
stake_pool.pool_token_supply = 0;
stake_pool.pool_token_supply = total_lamports;
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The tests uncovered this little oopsie!

@joncinque joncinque marked this pull request as ready for review May 2, 2022 19:09
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@brooksprumo brooksprumo left a comment

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Lgtm! I did not go in-depth on all the tests; once MINIMUM_RESERVE_LAMPORTS drops to 0, that'll effectively double check the tests as well 😊

@joncinque joncinque merged commit a1c827d into solana-labs:master May 2, 2022
@joncinque joncinque deleted the sp-min-del branch May 2, 2022 20:45
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2 participants