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blockstore: Refactor Rocks iterator methods #4030

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merged 6 commits into from
Dec 11, 2024
+104 −142
Merged

blockstore: Refactor Rocks iterator methods #4030

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0c966f5
hoist key conversion to byte array up to LedgerColumn
steviez Dec 10, 2024
c6211e8
Condense and remove Rocks::iterator_cf_raw_key()
steviez Dec 10, 2024
50a92cd
Remove iterator_cf_raw_key from test_purge_special_columns_with_old_data
steviez Dec 10, 2024
cc1b175
cleanup test_purge_transaction_memos_compaction_filter
steviez Dec 10, 2024
4b349f6
More test cleanup
steviez Dec 10, 2024
66a2548
Fixup for dcou (ledger-tool)
steviez Dec 10, 2024
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2 changes: 1 addition & 1 deletion ledger/src/blockstore.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -675,7 +675,7 @@ impl Blockstore {
cf_name: &str,
) -> Result<impl Iterator<Item = (Box<[u8]>, Box<[u8]>)> + '_> {
let cf = self.db.cf_handle(cf_name);
let iterator = self.db.iterator_cf_raw_key(cf, IteratorMode::Start);
let iterator = self.db.iterator_cf(cf, rocksdb::IteratorMode::Start);
Ok(iterator.map(|pair| pair.unwrap()))
}

Expand Down
163 changes: 62 additions & 101 deletions ledger/src/blockstore/blockstore_purge.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -804,18 +804,17 @@ pub mod tests {
}

fn get_index_bounds(blockstore: &Blockstore) -> (Box<[u8]>, Box<[u8]>) {
let first_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
status_entry_iterator.next().unwrap().unwrap().0
};
let last_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::End);
status_entry_iterator.next().unwrap().unwrap().0
};
let (first_index, _value) = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start)
.next()
.unwrap();
let (last_index, _value) = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::End)
.next()
.unwrap();

(first_index, last_index)
}

Expand Down Expand Up @@ -866,22 +865,22 @@ pub mod tests {
.put(1, &index1)
.unwrap();

let statuses: Vec<_> = blockstore
let num_statuses = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start)
.collect();
assert_eq!(statuses.len(), 15);
.iter(IteratorMode::Start)
Comment on lines -871 to +870
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@steviez steviez Dec 10, 2024 •
edited
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I started off wanting to kill iterator_cf_raw_key() altogether. However, we still need it for the cases where we perform compaction.

Regardless, I opted to use iter() where possible/it made more sense instead of iterator_cf_raw_key() to work towards being able to remove the test only iterator_cf_raw_key() function

.unwrap()
.count();
assert_eq!(num_statuses, 15);

// Delete some of primary-index 0
let oldest_slot = 3;
purge(&blockstore, oldest_slot);
let status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for entry in status_entry_iterator {
let (key, _value) = entry.unwrap();
let (_signature, slot) = <cf::TransactionStatus as Column>::index(&key);
for ((_signature, slot), _value) in status_entry_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand All @@ -892,11 +891,10 @@ pub mod tests {
purge(&blockstore, oldest_slot);
let status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for entry in status_entry_iterator {
let (key, _value) = entry.unwrap();
let (_signature, slot) = <cf::TransactionStatus as Column>::index(&key);
for ((_signature, slot), _value) in status_entry_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand All @@ -907,11 +905,10 @@ pub mod tests {
purge(&blockstore, oldest_slot);
let status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for entry in status_entry_iterator {
let (key, _value) = entry.unwrap();
let (_signature, slot) = <cf::TransactionStatus as Column>::index(&key);
for ((_signature, slot), _value) in status_entry_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand All @@ -922,11 +919,10 @@ pub mod tests {
purge(&blockstore, oldest_slot);
let status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for entry in status_entry_iterator {
let (key, _value) = entry.unwrap();
let (_signature, slot) = <cf::TransactionStatus as Column>::index(&key);
for ((_signature, slot), _value) in status_entry_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand All @@ -937,11 +933,10 @@ pub mod tests {
purge(&blockstore, oldest_slot);
let status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for entry in status_entry_iterator {
let (key, _value) = entry.unwrap();
let (_signature, slot) = <cf::TransactionStatus as Column>::index(&key);
for ((_signature, slot), _value) in status_entry_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand All @@ -952,7 +947,8 @@ pub mod tests {
purge(&blockstore, oldest_slot);
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
assert!(status_entry_iterator.next().is_none());
}

Expand Down Expand Up @@ -993,27 +989,13 @@ pub mod tests {
let max_slot = 19;

clear_and_repopulate_transaction_statuses_for_test(&blockstore, max_slot);
let first_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iter(IteratorMode::Start)
.unwrap();
status_entry_iterator.next().unwrap().0
};
let last_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iter(IteratorMode::End)
.unwrap();
status_entry_iterator.next().unwrap().0
};
let (first_index, last_index) = get_index_bounds(&blockstore);

let oldest_slot = 3;
blockstore.db.set_oldest_slot(oldest_slot);
blockstore.transaction_status_cf.compact_range_raw_key(
&cf::TransactionStatus::key(first_index),
&cf::TransactionStatus::key(last_index),
);
blockstore
.transaction_status_cf
.compact_range_raw_key(&first_index, &last_index);

let status_entry_iterator = blockstore
.transaction_status_cf
Expand All @@ -1027,27 +1009,13 @@ pub mod tests {
assert_eq!(count, max_slot - (oldest_slot - 1));

clear_and_repopulate_transaction_statuses_for_test(&blockstore, max_slot);
let first_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iter(IteratorMode::Start)
.unwrap();
status_entry_iterator.next().unwrap().0
};
let last_index = {
let mut status_entry_iterator = blockstore
.transaction_status_cf
.iter(IteratorMode::End)
.unwrap();
status_entry_iterator.next().unwrap().0
};
let (first_index, last_index) = get_index_bounds(&blockstore);

let oldest_slot = 12;
blockstore.db.set_oldest_slot(oldest_slot);
blockstore.transaction_status_cf.compact_range_raw_key(
&cf::TransactionStatus::key(first_index),
&cf::TransactionStatus::key(last_index),
);
blockstore
.transaction_status_cf
.compact_range_raw_key(&first_index, &last_index);

let status_entry_iterator = blockstore
.transaction_status_cf
Expand Down Expand Up @@ -1103,33 +1071,28 @@ pub mod tests {
)
.unwrap();

let first_index = {
let mut memos_iterator = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::Start);
memos_iterator.next().unwrap().unwrap().0
};
let last_index = {
let mut memos_iterator = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::End);
memos_iterator.next().unwrap().unwrap().0
};
let (first_index, _value) = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::Start)
.next()
.unwrap();
let (last_index, _value) = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::End)
.next()
.unwrap();
Comment on lines +1074 to +1083
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We can't use get_index_bounds() here since this is operating on a different column.

I could hypothetically parameterize get_index_bounds() to take a column instead of Blockstore (currently, get_index_bounds() uses transaction_status_cf). However, I think that will make things more difficult for a future PR so I'd rather hold off on that for now. IMO, what I did here is still cleaner than what was there (ie no .0)


// Purge at slot 0 should not affect any memos
blockstore.db.set_oldest_slot(0);
blockstore
.transaction_memos_cf
.compact_range_raw_key(&first_index, &last_index);
let memos_iterator = blockstore
let num_memos = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::Start);
let mut count = 0;
for item in memos_iterator {
let _item = item.unwrap();
count += 1;
}
assert_eq!(count, 4);
.iter(IteratorMode::Start)
.unwrap()
.count();
assert_eq!(num_memos, 4);

// Purge at oldest_slot without clean_slot_0 only purges the current memo at slot 4
blockstore.db.set_oldest_slot(oldest_slot);
Expand All @@ -1138,11 +1101,10 @@ pub mod tests {
.compact_range_raw_key(&first_index, &last_index);
let memos_iterator = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for item in memos_iterator {
let (key, _value) = item.unwrap();
let slot = <cf::TransactionMemos as Column>::index(&key).1;
for ((_signature, slot), _value) in memos_iterator {
assert!(slot == 0 || slot >= oldest_slot);
count += 1;
}
Expand All @@ -1155,11 +1117,10 @@ pub mod tests {
.compact_range_raw_key(&first_index, &last_index);
let memos_iterator = blockstore
.transaction_memos_cf
.iterator_cf_raw_key(IteratorMode::Start);
.iter(IteratorMode::Start)
.unwrap();
let mut count = 0;
for item in memos_iterator {
let (key, _value) = item.unwrap();
let slot = <cf::TransactionMemos as Column>::index(&key).1;
for ((_signature, slot), _value) in memos_iterator {
assert!(slot >= oldest_slot);
count += 1;
}
Expand Down
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