Alden Hu

### Description ### Test Plan --- This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/2337)

20 per ac

2

### Description ### Test Plan --- This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/2242)

The backup storage format being defined very simple and dumb, which is expected, there are a few bad cases people need to be careful with. 1. on the backup side,...

## Background The [backup coordinator](https://github.com/diem/diem/blob/9f2aa64e4c487b75eeb368e3aff3a4606fa7eedf/storage/backup/backup-cli/src/bin/db-backup.rs#L199) keeps listening to a Diem node (specifically, its [backup service](https://github.com/diem/diem/blob/9f2aa64e4c487b75eeb368e3aff3a4606fa7eedf/diem-node/src/lib.rs#L459)) and dumps Epoch ending ledger infos, transactions (and events) and state snapshots in relatively small...

We needed a clean way to do things like `buffered(n)` but with limited number of futures being drived at the same time, particularly useful is `try_bufferred_x(n, 1)`, where those futures...

[storage] remove DbReader::get_latest_state_value

1

### Description unused audit result ### Test Plan - - - This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/4157)

[storage] trivial: remove get_block_boundaries

1

### Description unused ### Test Plan - - - This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/4161)

add test for STORAGE_WRITE_LIMIT_REACHED

28

### Description ### Test Plan - - - This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/4982)

[backup] push metrics to vmagent

1

### Description ### Test Plan - - - This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/5101)

[gha] nightly replay-verify: start from 142m versions

1

### Description ### Test Plan - - - This change is [](https://reviewable.io/reviews/aptos-labs/aptos-core/5011)