{"record":{"id":"adeb3ffe8fd59e10","repo":"influxdata/influxdb","slug":"write-buffer-error-0","errorCode":null,"errorMessage":"Write buffer error: {0}","messagePattern":"Write buffer error: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"influxdb3/src/commands/serve.rs","lineNumber":135,"sourceCode":"    #[error(\"Cannot parse object store config: {0}\")]\n    ObjectStoreParsing(#[from] influxdb3_clap_blocks::object_store::ParseError),\n\n    #[error(\"Tracing config error: {0}\")]\n    TracingConfig(#[from] trace_exporters::Error),\n\n    #[error(\"Error initializing tokio runtime: {0}\")]\n    TokioRuntime(#[source] std::io::Error),\n\n    #[error(\"Failed to bind address\")]\n    BindAddress(#[source] std::io::Error),\n\n    #[error(\"Server error: {0}\")]\n    Server(#[source] influxdb3_server::Error),\n\n    #[error(\"Token error: {0}\")]\n    TokenError(CatalogError),\n\n    #[error(\"Write buffer error: {0}\")]\n    WriteBuffer(#[from] influxdb3_write::write_buffer::Error),\n\n    #[error(\"invalid token: {0}\")]\n    InvalidToken(#[from] hex::FromHexError),\n\n    #[error(\"failed to initialize write buffer: {0:?}\")]\n    WriteBufferInit(#[source] anyhow::Error),\n\n    #[error(\"failed to initialize catalog: {0}\")]\n    InitializeCatalog(#[source] CatalogError),\n\n    #[error(\"failed to initialize last cache: {0}\")]\n    InitializeLastCache(#[source] last_cache::Error),\n\n    #[error(\"failed to initialize distinct cache: {0:#}\")]\n    InitializeDistinctCache(#[source] influxdb3_cache::distinct_cache::ProviderError),\n\n    #[error(\"lost backend\")]","sourceCodeStart":117,"sourceCodeEnd":153,"githubUrl":"https://github.com/influxdata/influxdb/blob/06200ef96ba82c5f6727e5038a83af8e722c6875/influxdb3/src/commands/serve.rs#L117-L153","documentation":"Display message of the `Error::WriteBuffer` variant, converted with #[from] from `influxdb3_write::write_buffer::Error`. It means an operation against the in-memory write buffer (persister of LP data before WAL/snapshots) failed while the serve command was executing.","triggerScenarios":"Any write-buffer operation during `influxdb3 serve` (ingest, WAL append, buffer validation) returns `influxdb3_write::write_buffer::Error`, automatically converted into this variant via #[from].","commonSituations":"Bad line-protocol batches accepted at startup replay, disk/WAL issues, or internal buffer inconsistencies after an unclean shutdown.","solutions":["Read the wrapped write_buffer::Error source to find the exact failing operation","Validate WAL/segment files on disk for corruption from an unclean shutdown","Check disk space and filesystem health for the WAL directory","Reduce batch sizes or fix client line protocol if ingestion replay is failing"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"if let Err(e @ Error::WriteBuffer(_)) = res {\n    eprintln!(\"write buffer failed: {e:#}\");\n}","preventionTips":["Ensure WAL directory has free space and correct permissions","Shut down gracefully to avoid WAL corruption","Validate client line protocol before ingestion"],"tags":["rust","write-buffer","storage","ingest"],"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"}