{"record":{"id":"5748c98d82684bc0","repo":"influxdata/influxdb","slug":"an-unexpected-error-occurred-in-the-client-library-0","errorCode":null,"errorMessage":"An unexpected error occurred in the client library: {0}","messagePattern":"An unexpected error occurred in the client library: (.+?)","errorType":"exception","errorClass":"Error","httpStatus":null,"severity":"error","filePath":"core/influxdb_iox_client/src/client/error.rs","lineNumber":117,"sourceCode":"    #[error(\"Operation is not implemented or supported: {0}\")]\n    Unimplemented(ServerError<()>),\n\n    #[error(\"Internal error: {0}\")]\n    Internal(ServerError<()>),\n\n    #[error(\"The service is currently unavailable: {0}\")]\n    Unavailable(ServerError<()>),\n\n    #[error(\"Unrecoverable data loss or corruption: {0}\")]\n    DataLoss(ServerError<()>),\n\n    #[error(\"The request does not have valid authentication credentials: {0}\")]\n    Unauthenticated(ServerError<()>),\n\n    #[error(\"Received an invalid response from the server: {0}\")]\n    InvalidResponse(#[from] FieldViolation),\n\n    #[error(\"An unexpected error occurred in the client library: {0}\")]\n    Client(StdError),\n}\n\nimpl From<Status> for Error {\n    fn from(s: Status) -> Self {\n        match s.code() {\n            Code::Ok => Self::Client(\"status is not an error\".into()),\n            Code::Cancelled => Self::Cancelled(parse_status(s)),\n            Code::Unknown => Self::Unknown(parse_status(s)),\n            Code::InvalidArgument => Self::InvalidArgument(Box::new(parse_status(s))),\n            Code::DeadlineExceeded => Self::DeadlineExceeded(parse_status(s)),\n            Code::NotFound => Self::NotFound(Box::new(parse_status(s))),\n            Code::AlreadyExists => Self::AlreadyExists(Box::new(parse_status(s))),\n            Code::PermissionDenied => Self::PermissionDenied(parse_status(s)),\n            Code::ResourceExhausted => Self::ResourceExhausted(parse_status(s)),\n            Code::FailedPrecondition => Self::FailedPrecondition(Box::new(parse_status(s))),\n            Code::Aborted => Self::Aborted(parse_status(s)),\n            Code::OutOfRange => Self::OutOfRange(parse_status(s)),","sourceCodeStart":99,"sourceCodeEnd":135,"githubUrl":"https://github.com/influxdata/influxdb/blob/06200ef96ba82c5f6727e5038a83af8e722c6875/core/influxdb_iox_client/src/client/error.rs#L99-L135","documentation":"This Error variant is Client(StdError) with the message \"An unexpected error occurred in the client library: {0}\". It is the catch-all for errors originating inside influxdb_iox_client itself — configuration, connection setup, or internal logic failures that are not one of the mapped gRPC statuses or validated-response failures. The boxed StdError preserves the underlying cause chain.","triggerScenarios":"Invalid client construction parameters (bad endpoint URL, invalid TLS config); connection establishment failures inside the library; any internal invariant failure that cannot be classified as a server status.","commonSituations":"Typos or malformed URLs in endpoint configuration; TLS certificate problems during channel setup; running with an incompatible tonic/prost feature set; bugs in the client library surfaced by unusual inputs.","solutions":["Inspect the wrapped StdError chain (source() chain) to find the root cause.","Validate the endpoint URL, TLS settings, and client construction options before retrying.","Upgrade influxdb_iox_client to the latest patch version in case of a known client bug.","If the cause is a genuine library bug, report it with the full error chain and reproduction steps."],"exampleFix":"// before: swallowing the cause\nmatch client.query(req).await {\n    Err(e) => eprintln!(\"failed: {e}\"),\n    _ => {}\n}\n// after: walk the source chain for the root cause\nmatch client.query(req).await {\n    Err(Error::Client(inner)) => {\n        let mut src: Option<&dyn std::error::Error> = Some(inner.as_ref());\n        while let Some(e) = src {\n            eprintln!(\"caused by: {e}\");\n            src = e.source();\n        }\n    }\n    other => /* ... */,\n}","handlingStrategy":"try-catch","validationCode":"// validate client construction inputs up front\nlet url = url::Url::parse(&endpoint)\n    .expect(\"endpoint must be a valid URL\");\nassert!(matches!(url.scheme(), \"http\" | \"https\"), \"bad scheme\");","typeGuard":"fn is_client_error(e: &client::Error) -> bool {\n    matches!(e, client::Error::Client(_))\n}","tryCatchPattern":"match res {\n    Err(Error::Client(inner)) => {\n        // walk the source chain to surface the root cause\n        let mut src: Option<&(dyn std::error::Error + 'static)> = Some(inner.as_ref());\n        while let Some(e) = src { eprintln!(\"caused by: {e}\"); src = e.source(); }\n    }\n    other => other.map_err(Into::into),\n}","preventionTips":["Validate endpoint URLs and TLS config before constructing the client","Keep the client library updated for bug fixes","Always log the full error source chain, not just the top-level message"],"tags":["grpc","rust","influxdb-iox","client-library","configuration"],"backgroundTag":"client-library-error","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"}