influxdata/influxdb · error · Error

persister error

Error message

persister error: {0}

What it means

The Persister variant wraps persister::PersisterError, produced when the persistence layer (catalog, database, and table metadata stored in object storage) fails to read, write, or serialize. The library re-exposes it so callers of write-buffer APIs see a single error type. The inner PersisterError identifies the failing operation.

Solutions

1. Check the inner PersisterError and its object-store source for the root cause (auth, network, not found)
2. Verify object store configuration (endpoint, credentials, bucket/container) and connectivity
3. Restore a valid catalog snapshot or remove corrupt catalog entries if corruption is confirmed
4. Retry transient network failures; ensure only one writer process owns catalog updates

Example fix

// before
// missing AWS creds in env -> persister load_catalog fails at startup
// after
export AWS_ACCESS_KEY_ID=... AWS_SECRET_ACCESS_KEY=... AWS_REGION=us-east-1

// check object store reachability before operations
let ok = object_store.head(&Path::from("catalog")).await.is_ok()
    || true; // tolerate not-found; failure here means config/network issue

fn is_persister_error(e: &influxdb3_write::Error) -> Option<&persister::PersisterError> {
    match e { influxdb3_write::Error::Persister(p) => Some(p), _ => None }
}

match result {
    Err(influxdb3_write::Error::Persister(p)) if is_transient(&p) => {
        backoff_retry(|| persist_op(), 3).await?
    }
    Err(e @ influxdb3_write::Error::Persister(p)) => {
        log::error!("persister failure (check object-store config): {}", p); Err(e.into())
    }
    r => r,
}

When it happens

Trigger: APIs that persist or load metadata through the Persister: creating databases/tables, loading the catalog at startup, writing catalog updates, or snapshotting — any underlying object-store or serde failure inside the Persister.

Common situations: Object store credentials/bucket misconfigured so catalog reads fail at startup; corrupted or partially written catalog snapshot; concurrent writers causing catalog update conflicts; network failures to S3/GCS/Azure.

Related errors

• another process has written to the WAL ahead of this one
• Cannot parse object store config
• Failed to list table indices from object store
• Failed to load table index from object store
• Invalid sequence number in

AI-assisted analysis of influxdata/influxdb@06200ef96b (2026-09-19). Data as JSON: /api/errors/81c6406fbf89b4b9. Report an issue: GitHub.

Appendix: source

Thrown at influxdb3_write/src/lib.rs:54

pub use influxdb3_types::write::Precision;
use influxdb3_wal::{SnapshotSequenceNumber, Wal, WalFileSequenceNumber};
use iox_query::QueryChunk;
use iox_time::Time;
use observability_deps::tracing::debug;
use schema::TIME_COLUMN_NAME;
use serde::{Deserialize, Serialize};
use std::{fmt::Debug, sync::Arc};
use thiserror::Error;

#[derive(Debug, Error)]
pub enum Error {
    #[error("object store path error: {0}")]
    ObjStorePath(#[from] object_store::path::Error),

    #[error("write buffer error: {0}")]
    WriteBuffer(#[from] write_buffer::Error),

    #[error("persister error: {0}")]
    Persister(#[from] persister::PersisterError),

    #[error("queries not supported in compactor only mode")]
    CompactorOnly,

    #[error("unexpected: {0:?}")]
    Anyhow(#[from] anyhow::Error),
}

pub type Result<T, E = Error> = std::result::Result<T, E>;

pub trait WriteBuffer: Bufferer + ChunkContainer + DistinctCacheManager + LastCacheManager {}

/// The buffer is for buffering data in memory and in the wal before it is persisted as parquet files in storage.
#[async_trait]
pub trait Bufferer: Debug + Send + Sync + 'static {
    /// Validates the line protocol, writes it into the WAL if configured, writes it into the in memory buffer
    /// and returns the result with any lines that had errors and summary statistics.

View on GitHub (pinned to 06200ef96b)