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fix(storage): harden scanner and recovery edge cases (#5521)
* fix(ecstore): handle benign listing and GET disconnects Co-Authored-By: heihutu <heihutu@gmail.com> * fix(scanner): scope cache locks by set Co-Authored-By: heihutu <heihutu@gmail.com> * test(kms): stabilize Vault transport retry coverage Co-Authored-By: heihutu <heihutu@gmail.com> * fix(scanner): fence scoped cache locks by protocol Co-Authored-By: heihutu <heihutu@gmail.com> * test(ecstore): stabilize topology DNS fallback coverage Co-Authored-By: heihutu <heihutu@gmail.com> * fix(kms): remove stale local export test import Co-Authored-By: heihutu <heihutu@gmail.com> --------- Co-authored-by: heihutu <heihutu@gmail.com>
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@@ -14,8 +14,8 @@
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//! Fault-injection matrix for the Vault backend operation policy.
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//!
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//! Offline cases run against locally injected transport faults (a closed
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//! port, a listener that never responds) — deterministic, no external
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//! Offline cases run against locally injected transport faults (a listener
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//! that never responds) — deterministic, no external
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//! dependencies. Real-Vault cases are `#[ignore]`d and need a dev Vault
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//! (default `http://127.0.0.1:8200`, override with `RUSTFS_KMS_VAULT_ADDR`).
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//!
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@@ -118,44 +118,6 @@ fn counter_value(snapshot: &[MetricEntry], name: &str, labels: &[(&str, &str)])
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.sum()
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}
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/// Connection refused: connection-class failures are retried up to the
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/// configured budget, then surface as a backend error.
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#[test]
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fn connection_refused_is_retried_within_budget() {
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// Reserve a loopback port and release it so nothing is listening there.
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let listener = std::net::TcpListener::bind("127.0.0.1:0").expect("reserve a loopback port");
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let address = format!("http://{}", listener.local_addr().expect("reserved port addr"));
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drop(listener);
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let snapshot = record_metrics(|| {
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Box::pin(async move {
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let client = VaultKmsBackend::new(kms_config(vault_config(&address, "unused"), Duration::from_secs(2), 2))
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.await
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.expect("client construction performs no network calls");
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let error = KmsBackendTrait::describe_key(&client, describe_key_request("fault-injection-refused"))
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.await
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.expect_err("a refused connection must fail the operation");
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assert!(matches!(error, KmsError::BackendError { .. }), "got {error:?}");
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})
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});
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assert_eq!(
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counter_value(&snapshot, ATTEMPT_FAILURES_TOTAL, &[("error_class", "retryable_conn")]),
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2,
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"both budgeted attempts must observe the refused connection"
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);
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assert_eq!(counter_value(&snapshot, OPERATIONS_TOTAL, &[("outcome", "budget_exhausted")]), 1);
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// The static-token login records its own success; the Vault read must not.
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assert_eq!(
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counter_value(
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&snapshot,
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OPERATIONS_TOTAL,
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&[("operation", "vault_kv2_read_key"), ("outcome", "success")]
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),
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0
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);
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}
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/// Stalled connection: a server that accepts but never responds is cut off by
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/// the per-attempt timeout (either the policy timer or the equally sized HTTP
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/// client timeout, whichever fires first) instead of hanging forever.
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