influxdata/influxdb · error · TableIndexCacheError

Failed to parse table index snapshot path from object store…

Error message

Failed to parse table index snapshot path from object store path

What it means

TableIndexCacheError::TableIndexSnapshotPath, thrown when an object store path listed under a table index cannot be parsed into the strongly-typed TableIndexSnapshotPath via crate::paths. Like TableIndexPath, it indicates an object in the snapshot prefix whose name does not conform to the expected snapshot file naming scheme.

Solutions

1. Inspect the snapshot prefix for objects with non-conforming names and remove or repair them (snapshots are derived state; a valid newer snapshot can be re-snapshotted)
2. Ensure only one InfluxDB 3 version with one path scheme writes to the bucket; complete any interrupted migrations
3. Re-run index rebuild/conversion tooling to regenerate snapshot metadata
4. If the server produced the bad name itself, capture the object name and report it — it points to a writer-side bug

Example fix

// before: fail the whole load on one bad name
let snap = TableIndexSnapshotPath::from_obj_path(&meta.location)?;
// after: skip and log
let snap = match TableIndexSnapshotPath::from_obj_path(&meta.location) {
    Ok(s) => s,
    Err(e) => { warn!(loc=%meta.location, error=%e, "skipping bad snapshot path"); continue; }
};

fn looks_like_snapshot(loc: &ObjPath) -> bool {
    loc.filename()
        .map(|f| f.starts_with("snapshot") && f.contains("_"))
        .unwrap_or(false)
}

fn parse_snapshot_path(loc: &ObjPath) -> Option<TableIndexSnapshotPath> {
    TableIndexSnapshotPath::from_obj_path(loc).ok()
}

match result {
    Err(TableIndexCacheError::TableIndexSnapshotPath(e)) => {
        warn!(error=?e, "bad snapshot path; skipping object");
        Ok(vec![])
    }
    other => other,
}

When it happens

Trigger: While listing table index snapshots to load a TableIndex, each ObjectMeta location is parsed into TableIndexSnapshotPath; a snapshot object whose filename lacks the expected snapshot sequence number or segment structure produces PathError wrapped in this variant.

Common situations: Snapshot files partially written or truncated by a crash; objects renamed or moved by cleanup/maintenance scripts; objects from a different InfluxDB 3 version with a different snapshot naming scheme sharing the same bucket.

Understand the failure class

Background: "Invalid URL" errors: why new URL(), URI.parse, and reqwest::Url reject your string — missing scheme, whitespace, and bad path format — this error's family across 39 libraries.

• Parsing and encoding errors: unexpected token, malformed input — why parsers reject input and how to find the real culprit.

Related errors

• Failed to parse snapshot info file path
• Failed to parse table index path from object store path
• Failed to parse table index path from object store path
• Failed to create table index from object store
• Failed to delete parquet file

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/4b5a61e3cca9e071. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_write/src/table_index_cache.rs:72

    #[error("Failed to parse snapshot sequence number from filename")]
    InvalidSnapshotSequenceNumber,

    #[error("Unexpected error")]
    Unexpected(#[source] anyhow::Error),

    #[error("Table snapshot persistence task failed")]
    TableSnapshotPersistenceTaskFailed(#[source] tokio::task::JoinError),

    #[error("Failed to list table indices from object store")]
    ListIndices(#[source] object_store::Error),

    #[error("Failed to parse table index path from object store path")]
    TableIndexPath(#[source] crate::paths::PathError),

    #[error("Failed to list table index snapshots from object store")]
    ListSnapshots(#[source] object_store::Error),

    #[error("Failed to parse table index snapshot path from object store path")]
    TableIndexSnapshotPath(#[source] crate::paths::PathError),

    #[error("Failed to update table index: join task failed")]
    UpdateTaskFailed(#[source] tokio::task::JoinError),

    #[error("Failed to list object store metadata")]
    ListMetasError(#[source] object_store::Error),

    #[error("Failed to load table index conversion marker bytes from object store")]
    LoadConversionMarkerBytesError(#[source] object_store::Error),

    #[error("Failed to serialize initial table index conversion marker")]
    SerializeConversionMarkerError(#[source] serde_json::Error),

    #[error("Failed to put initial table index conversion marker to object store")]
    PutConversionMarkerError(#[source] object_store::Error),

    #[error("Failed to parse snapshot info file path")]

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