Tenets:
1. Limit thread names to 15 characters
2. Prefix all Solana-controlled threads with "sol"
3. Use Camel case. It's more character dense than Snake or Kebab case
https://github.com/solana-labs/solana/pull/25744
separated durable nonce and blockhash domains, which will stop double
execution going forward. However it is possible that a durable
transaction has *already* been executed once as a normal transaction and
it is now a valid durable transaction. #25744 cannot stop such
transactions to be re-executed until the nonce accounts are advanced.
This commit adds a new nonce version indicating that the nonce is moved
out of the blockhash domain, and permanently disables durable
transactions for legacy nonces which are in the blockhash domain.
* client: Remove static connection cache, plumb it instead
* Add TpuClient::new_with_connection_cache to not break downstream
* Refactor get_connection and RwLock into ConnectionCache
* Fix merge conflicts from new async TpuClient
* Remove `ConnectionCache::set_use_quic`
* Move DEFAULT_TPU_USE_QUIC to client, use ConnectionCache::default()
AdvanceNonceAccount instruction updates nonce to blockhash. This makes it
possible that a durable transaction is executed twice both as a normal
transaction and a nonce transaction if it uses blockhash (as opposed to nonce)
for its recent_blockhash field.
The commit prevents this double execution by separating nonce and blockhash
domains; when advancing nonce account, blockhash is hashed with a fixed string.
As a result a blockhash cannot be a valid nonce value; and if transaction was
once executed as a normal transaction it cannot be re-executed as a durable
transaction again and vice-versa.
In PR review https://github.com/solana-labs/solana/pull/24083/files#r852661162. We are concerned the leader info might be out dated if the retry queue is long causing large number transactions sent to outdated leaders and increasing the load in the network.
A leader info refresher is used to ensure the leader info is up-to-date before being used in sending transactions. The refresher can update the new leader with updated endpoints.
Introduced flag --tpu-do-batch2.
Introduced flag to control the batch size-- by default 100
The default batch timeout is 200ms -- configurable. If either it time out or the batch size is filled, a new batch is sent
The batch honor the retry rate on the transaction already sent before.
Introduced two threads in STS: one for receiving new transactions and doing batch send and one for retrying old transactions and doing batch.6.
Fixes #
Will Hickey
Tyera Eulberg
Trent Nelson
Michael Vines
github-actions[bot]
behzad nouri
Nicholas Rempel
Justin Starry
Jon Cinque
ryleung-solana
Brooks Prumo
dependabot[bot]
Lijun Wang
anatoly yakovenko
Jeff Biseda
Jack May
Tyera Eulberg