{"record":{"id":"81c6406fbf89b4b9","repo":"influxdata/influxdb","slug":"persister-error-0-lib","errorCode":null,"errorMessage":"persister error: {0}","messagePattern":"persister error: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"influxdb3_write/src/lib.rs","lineNumber":54,"sourceCode":"pub use influxdb3_types::write::Precision;\nuse influxdb3_wal::{SnapshotSequenceNumber, Wal, WalFileSequenceNumber};\nuse iox_query::QueryChunk;\nuse iox_time::Time;\nuse observability_deps::tracing::debug;\nuse schema::TIME_COLUMN_NAME;\nuse serde::{Deserialize, Serialize};\nuse std::{fmt::Debug, sync::Arc};\nuse thiserror::Error;\n\n#[derive(Debug, Error)]\npub enum Error {\n    #[error(\"object store path error: {0}\")]\n    ObjStorePath(#[from] object_store::path::Error),\n\n    #[error(\"write buffer error: {0}\")]\n    WriteBuffer(#[from] write_buffer::Error),\n\n    #[error(\"persister error: {0}\")]\n    Persister(#[from] persister::PersisterError),\n\n    #[error(\"queries not supported in compactor only mode\")]\n    CompactorOnly,\n\n    #[error(\"unexpected: {0:?}\")]\n    Anyhow(#[from] anyhow::Error),\n}\n\npub type Result<T, E = Error> = std::result::Result<T, E>;\n\npub trait WriteBuffer: Bufferer + ChunkContainer + DistinctCacheManager + LastCacheManager {}\n\n/// The buffer is for buffering data in memory and in the wal before it is persisted as parquet files in storage.\n#[async_trait]\npub trait Bufferer: Debug + Send + Sync + 'static {\n    /// Validates the line protocol, writes it into the WAL if configured, writes it into the in memory buffer\n    /// and returns the result with any lines that had errors and summary statistics.","sourceCodeStart":36,"sourceCodeEnd":72,"githubUrl":"https://github.com/influxdata/influxdb/blob/06200ef96ba82c5f6727e5038a83af8e722c6875/influxdb3_write/src/lib.rs#L36-L72","documentation":"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.","triggerScenarios":"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.","commonSituations":"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.","solutions":["Check the inner PersisterError and its object-store source for the root cause (auth, network, not found)","Verify object store configuration (endpoint, credentials, bucket/container) and connectivity","Restore a valid catalog snapshot or remove corrupt catalog entries if corruption is confirmed","Retry transient network failures; ensure only one writer process owns catalog updates"],"exampleFix":"// before\n// missing AWS creds in env -> persister load_catalog fails at startup\n// after\nexport AWS_ACCESS_KEY_ID=... AWS_SECRET_ACCESS_KEY=... AWS_REGION=us-east-1","handlingStrategy":"retry","validationCode":"// check object store reachability before operations\nlet ok = object_store.head(&Path::from(\"catalog\")).await.is_ok()\n    || true; // tolerate not-found; failure here means config/network issue","typeGuard":"fn is_persister_error(e: &influxdb3_write::Error) -> Option<&persister::PersisterError> {\n    match e { influxdb3_write::Error::Persister(p) => Some(p), _ => None }\n}","tryCatchPattern":"match result {\n    Err(influxdb3_write::Error::Persister(p)) if is_transient(&p) => {\n        backoff_retry(|| persist_op(), 3).await?\n    }\n    Err(e @ influxdb3_write::Error::Persister(p)) => {\n        log::error!(\"persister failure (check object-store config): {}\", p); Err(e.into())\n    }\n    r => r,\n}","preventionTips":["Validate object-store credentials and bucket config at startup with a smoke read/write","Use exponential backoff for transient network errors to S3/GCS/Azure","Never run multiple writers against the same catalog without coordination","Back up catalog snapshots before upgrades"],"tags":["rust","persister","object-store"],"backgroundTag":"database-write-failed","analyzedSha":"06200ef96ba82c5f6727e5038a83af8e722c6875","analyzedAt":"2026-09-19T12:55:30.003Z","contentChangedAt":"2026-09-19T12:55:30.003Z","schemaVersion":2},"datasetVersion":"2026-09-23T08:17:48.524Z"}