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Remove GlobalSessions DB entry

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If we read the currently-being-evaluated session from the evaluator, we can
avoid paying the storage costs on all sessions ad-infinitum.
This commit is contained in:
Luke Parker
2024-12-25 23:51:24 -05:00
parent 2aebfb21af
commit f336ab1ece
4 changed files with 79 additions and 53 deletions
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19
coordinator/cosign/src/intend.rs
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@@ -26,7 +26,7 @@ pub(crate) struct BlockEventData {
db_channel! {
CosignIntendChannels {
GlobalSessionsChannel: () -> ([u8; 32], GlobalSession),
GlobalSessions: () -> ([u8; 32], GlobalSession),
BlockEvents: () -> BlockEventData,
IntendedCosigns: (set: ValidatorSet) -> CosignIntent,
}
@@ -128,12 +128,14 @@ impl<D: Db> ContinuallyRan for CosignIntendTask<D> {
stakes,
total_stake,
};
GlobalSessions::set(&mut txn, global_session, &global_session_info);
if let Some(ending_global_session) = global_session_for_this_block {
if let Some((ending_global_session, _ending_global_session_info)) = global_session_for_this_block {
GlobalSessionsLastBlock::set(&mut txn, ending_global_session, &block_number);
}
LatestGlobalSessionIntended::set(&mut txn, &global_session);
GlobalSessionsChannel::send(&mut txn, &(global_session, global_session_info));
LatestGlobalSessionIntended::set(
&mut txn,
&(global_session, global_session_info.clone()),
);
GlobalSessions::send(&mut txn, &(global_session, global_session_info));
}
// If there isn't anyone available to cosign this block, meaning it'll never be cosigned,
@@ -145,10 +147,9 @@ impl<D: Db> ContinuallyRan for CosignIntendTask<D> {
match has_events {
HasEvents::Notable | HasEvents::NonNotable => {
let global_session_for_this_block = global_session_for_this_block
.expect("global session for this block was None but still attempting to cosign it");
let global_session_info = GlobalSessions::get(&txn, global_session_for_this_block)
.expect("last global session intended wasn't saved to the database");
let (global_session_for_this_block, global_session_info) =
global_session_for_this_block
.expect("global session for this block was None but still attempting to cosign it");
// Tell each set of their expectation to cosign this block
for set in global_session_info.sets {