{"record":{"id":"3c17dfcfe5e17ad5","repo":"hashicorp/nomad","slug":"missing-node-id-for-evaluation","errorCode":null,"errorMessage":"missing node ID for evaluation","messagePattern":"missing node ID for evaluation","errorType":"validation","errorClass":null,"httpStatus":null,"severity":"error","filePath":"nomad/node_endpoint.go","lineNumber":1147,"sourceCode":"\tif done, err := n.srv.forward(\"Node.Evaluate\", args, args, reply); done {\n\t\treturn err\n\t}\n\tn.srv.MeasureRPCRate(\"node\", structs.RateMetricWrite, args)\n\tif authErr != nil {\n\t\treturn structs.ErrPermissionDenied\n\t}\n\tdefer metrics.MeasureSince([]string{\"nomad\", \"client\", \"evaluate\"}, time.Now())\n\n\t// Check node write permissions\n\tif aclObj, err := n.srv.ResolveACL(args); err != nil {\n\t\treturn err\n\t} else if !aclObj.AllowNodeWrite() {\n\t\treturn structs.ErrPermissionDenied\n\t}\n\n\t// Verify the arguments\n\tif args.NodeID == \"\" {\n\t\treturn fmt.Errorf(\"missing node ID for evaluation\")\n\t}\n\n\t// Look for the node\n\tsnap, err := n.srv.fsm.State().Snapshot()\n\tif err != nil {\n\t\treturn err\n\t}\n\tws := memdb.NewWatchSet()\n\tnode, err := snap.NodeByID(ws, args.NodeID)\n\tif err != nil {\n\t\treturn err\n\t}\n\tif node == nil {\n\t\treturn fmt.Errorf(\"node not found\")\n\t}\n\n\t// Create the evaluation\n\tevalIDs, evalIndex, err := n.createNodeEvals(node, node.ModifyIndex)","sourceCodeStart":1129,"sourceCodeEnd":1165,"githubUrl":"https://github.com/hashicorp/nomad/blob/482b49bf1aec006f089bcfc7e632d8f6ac303e5e/nomad/node_endpoint.go#L1129-L1165","documentation":"The Node.Evaluate RPC failed argument validation: the request carried an empty NodeID, so the server has no node to force an evaluation for.","triggerScenarios":"Thrown at nomad/node_endpoint.go:1147 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Populate NodeID in the EvaluateRequest before calling the endpoint","Client-side, verify the node reference/flag used to build the request is not empty"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"482b49bf1aec006f089bcfc7e632d8f6ac303e5e","analyzedAt":"2026-09-04T07:54:14.808Z","contentChangedAt":"2026-09-04T07:54:14.808Z","schemaVersion":2},"datasetVersion":"2026-09-08T10:18:20.063Z"}