879d25faf4
Implements plan §13.1 step 4: cross-index verification between live and shadow indexes during resharding. This reuses §13.8's bucketed-Merkle machinery with PK-keyed (not shard-keyed) bucketing to compare indexes with different shard counts. Key changes: - ReshardExecutor::run_verify now uses AntiEntropyReconciler's compare_index_buckets method to perform cross-index comparison - Added VerificationFailed error variant to MiroirError - Exposed executor module via pub mod in reshard.rs - Added helper function hash_pk_to_shard for mismatch detail reporting - Added 6 acceptance tests for PK-keyed bucketing, content hash canonicalization, and verify result structure Acceptance criteria: - Cross-index PK set comparison: live PK set == shadow PK set - Content hash matching: for each PK, content_hash matches - PK-keyed bucketing: independent of shard count S - Reuses §13.8 bucketed-Merkle machinery Closes: miroir-uhj.1.4
109 lines
2.7 KiB
Rust
109 lines
2.7 KiB
Rust
//! Error types for Miroir.
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use thiserror::Error;
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/// Result type alias for Miroir operations.
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pub type Result<T> = std::result::Result<T, MiroirError>;
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/// Core error type for Miroir.
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#[derive(Error, Debug)]
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pub enum MiroirError {
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/// Configuration error.
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#[error("configuration error: {0}")]
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Config(String),
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/// Topology error.
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#[error("topology error: {0}")]
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Topology(String),
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/// Routing error.
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#[error("routing error: {0}")]
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Routing(String),
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/// Merge error.
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#[error("merge error: {0}")]
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Merge(String),
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/// Task registry error.
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#[error("task error: {0}")]
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Task(String),
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/// Task store error.
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#[error("task store error: {0}")]
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TaskStore(String),
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/// IO error.
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#[error("IO error: {0}")]
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Io(#[from] std::io::Error),
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/// JSON serialization/deserialization error.
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#[error("JSON error: {0}")]
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Json(#[from] serde_json::Error),
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/// SQLite error.
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#[error("SQLite error: {0}")]
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Sqlite(#[from] rusqlite::Error),
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/// Redis error.
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#[error("Redis error: {0}")]
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Redis(String),
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/// Schema version mismatch.
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#[error("schema version {store_version} is ahead of binary version {binary_version}; cannot safely start. Restore from backup or upgrade binary.")]
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SchemaVersionAhead {
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store_version: i64,
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binary_version: i64,
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},
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/// Migration error.
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#[error("migration error: {0}")]
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Migration(String),
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/// Not found error.
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#[error("{0} not found")]
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NotFound(String),
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/// Invalid state error.
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#[error("invalid state: {0}")]
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InvalidState(String),
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/// Invalid request error.
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#[error("invalid request: {0}")]
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InvalidRequest(String),
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/// Idempotency key already used with different body.
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#[error("idempotency key reused with different body")]
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IdempotencyKeyReused,
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/// Too many pending queries.
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#[error("too many pending queries")]
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TooManyPendingQueries,
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/// Multi-target alias is not writable.
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#[error("multi-target alias is not writable")]
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MultiAliasNotWritable,
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/// Settings divergence detected.
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#[error("settings divergence detected across nodes")]
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SettingsDivergence,
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/// Settings version stale.
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#[error("settings version stale")]
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SettingsVersionStale,
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/// Tenant not allowed.
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#[error("tenant '{tenant}' not allowed: {reason}")]
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TenantNotAllowed { tenant: String, reason: String },
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/// Discovery error.
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#[error("discovery error: {0}")]
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Discovery(String),
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/// Anti-entropy error.
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#[error("anti-entropy error: {0}")]
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AntiEntropy(String),
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/// Verification error (for resharding cross-index verification).
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#[error("verification failed: {0}")]
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VerificationFailed(String),
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}
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