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local-cluster: fix flaky test_rpc_block_subscribe (#34421) 

* local-cluster: fix flaky test_rpc_block_subscribe

* reenable test

* pr feedback: add comment linking pr
This commit is contained in:
Ashwin Sekar 2023-12-14 14:50:48 -05:00 committed by GitHub
parent c7a57672d7
commit 4f1116164c
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1 changed files with 12 additions and 6 deletions
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18
local-cluster/tests/local_cluster.rs
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@ -2562,35 +2562,41 @@ fn run_test_load_program_accounts_partition(scan_commitment: CommitmentConfig) {
#[test]
#[serial]
#[ignore]
fn test_rpc_block_subscribe() {
let total_stake = 100 * DEFAULT_NODE_STAKE;
let leader_stake = total_stake;
let node_stakes = vec![leader_stake];
let leader_stake = 100 * DEFAULT_NODE_STAKE;
let rpc_stake = DEFAULT_NODE_STAKE;
let total_stake = leader_stake + rpc_stake;
let node_stakes = vec![leader_stake, rpc_stake];
let mut validator_config = ValidatorConfig::default_for_test();
validator_config.enable_default_rpc_block_subscribe();
let validator_keys = [
"28bN3xyvrP4E8LwEgtLjhnkb7cY4amQb6DrYAbAYjgRV4GAGgkVM2K7wnxnAS7WDneuavza7x21MiafLu1HkwQt4",
"2saHBBoTkLMmttmPQP8KfBkcCw45S5cwtV3wTdGCscRC8uxdgvHxpHiWXKx4LvJjNJtnNcbSv5NdheokFFqnNDt8",
]
.iter()
.map(|s| (Arc::new(Keypair::from_base58_string(s)), true))
.take(node_stakes.len())
.collect::<Vec<_>>();
let rpc_node_pubkey = &validator_keys[1].0.pubkey();
let mut config = ClusterConfig {
cluster_lamports: total_stake,
node_stakes,
validator_configs: vec![validator_config],
validator_configs: make_identical_validator_configs(&validator_config, 2),
validator_keys: Some(validator_keys),
skip_warmup_slots: true,
..ClusterConfig::default()
};
let cluster = LocalCluster::new(&mut config, SocketAddrSpace::Unspecified);
let rpc_node_contact_info = cluster.get_contact_info(rpc_node_pubkey).unwrap();
let (mut block_subscribe_client, receiver) = PubsubClient::block_subscribe(
&format!(
"ws://{}",
&cluster.entry_point_info.rpc_pubsub().unwrap().to_string()
// It is important that we subscribe to a non leader node as there
// is a race condition which can cause leader nodes to not send
// BlockUpdate notifications properly. See https://github.com/solana-labs/solana/pull/34421
&rpc_node_contact_info.rpc_pubsub().unwrap().to_string()
),
RpcBlockSubscribeFilter::All,
Some(RpcBlockSubscribeConfig {