influxdata/influxdb · error · TableIndexError

Failed to parse table index path from object store path

Error message

Failed to parse table index path from object store path

What it means

TableIndexError::TableIndexPath is raised when an object_store::path::Path retrieved from a list operation cannot be parsed into the crate's typed TableIndexPath. The library parses raw object store paths back into structured paths to recover database/table identifiers; a parse failure means the object store contains a path that does not conform to the expected layout. It wraps a crate::paths::PathError.

Solutions

  1. Inspect the offending object store path from the wrapped PathError and compare against the expected index path layout.
  2. Remove or relocate foreign/legacy objects that don't match the current path schema.
  3. Check the InfluxDB 3 version that wrote the objects; upgrade/migrate data if paths come from an incompatible schema.
  4. Ensure any custom object store prefix configuration matches between writer and reader processes.

Example fix

// before: fail hard on every listed object
let typed = TableIndexPath::from_object_store_path(&path)?;
// after: skip unparsable objects with a warning
match TableIndexPath::from_object_store_path(&path) {
    Ok(typed) => handle(typed),
    Err(e) => warn!(?path, %e, "skipping unrecognized object in index prefix"),
}
Defensive patterns

Strategy: fallback

Validate before calling

fn looks_like_index_path(p: &object_store::path::Path) -> bool {
    let segs: Vec<_> = p.as_ref().split('/').collect();
    segs.len() >= 4 && segs.contains(&"db") && segs.contains(&"table")
}

Try / catch

match TableIndexPath::from_object_store_path(&raw) {
    Ok(typed) => use(typed),
    Err(TableIndexError::TableIndexPath(e)) => {
        warn!(%e, path=%raw, "skipping unrecognized index object");
        continue;
    }
    Err(e) => return Err(e),
}

Prevention

When it happens

Trigger: Listing objects under the index prefix and calling TableIndexPath::from_object_store_path on a returned path whose segments do not match the expected ".../db/<db_id>/table/<table_id>/index..." structure.

Common situations: Manually copied or legacy-format objects in the bucket from an older InfluxDB 3 version; hand-created or foreign files placed in the index prefix; truncated path segments from a partially failed write or manual deletion.

Understand the failure class

Background: "Invalid ... format", "must be in format X", "does not look like a ..." — invalid argument format errors across CLI tools and libraries — this error's family across 17 libraries.

Related errors


AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/0ff557538fe360a9. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_write/src/table_index.rs:55

    #[error("Failed to load table index snapshot from object store")]
    LoadSnapshot(#[source] object_store::Error),

    #[error("Failed to deserialize table index snapshot")]
    DeserializeSnapshot(#[source] serde_json::Error),

    #[error("Failed to persist table index to object store")]
    PersistIndex(#[source] object_store::Error),

    #[error("Failed to delete table index snapshot from object store")]
    DeleteSnapshot(#[source] object_store::Error),

    #[error("Cannot merge table indices with mismatched identifiers: {expected} != {actual}")]
    MergeMismatch {
        expected: TableIndexId,
        actual: TableIndexId,
    },

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

    #[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("Object meta is missing filename")]
    MissingFilename,

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

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

    #[error("Unexpected error")]

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