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Merge pull request volcano-sh#34 from lminzhw/scheduler_detailed_event
support scheduler detailed event
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,112 @@ | ||
| package api | ||
|
|
||
| import ( | ||
| "fmt" | ||
| "sort" | ||
| "strings" | ||
|
|
||
| "k8s.io/kubernetes/pkg/scheduler/algorithm" | ||
| ) | ||
|
|
||
| const ( | ||
| // NodePodNumberExceeded means pods in node exceed the allocatable pod number | ||
| NodePodNumberExceeded = "node(s) pod number exceeded" | ||
| // NodeResourceFitFailed means node could not fit the request of pod | ||
| NodeResourceFitFailed = "node(s) resource fit failed" | ||
|
|
||
| // AllNodeUnavailableMsg is the default error message | ||
| AllNodeUnavailableMsg = "all nodes are unavailable" | ||
| ) | ||
|
|
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| // FitErrors is set of FitError on many nodes | ||
| type FitErrors struct { | ||
| nodes map[string]*FitError | ||
| err string | ||
| } | ||
|
|
||
| // NewFitErrors returns an FitErrors | ||
| func NewFitErrors() *FitErrors { | ||
| f := new(FitErrors) | ||
| f.nodes = make(map[string]*FitError) | ||
| return f | ||
| } | ||
|
|
||
| // SetError set the common error message in FitErrors | ||
| func (f *FitErrors) SetError(err string) { | ||
| f.err = err | ||
| } | ||
|
|
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| // SetNodeError set the node error in FitErrors | ||
| func (f *FitErrors) SetNodeError(nodeName string, err error) { | ||
| var fe *FitError | ||
| switch obj := err.(type) { | ||
| case *FitError: | ||
| obj.NodeName = nodeName | ||
| fe = obj | ||
| default: | ||
| fe = &FitError{ | ||
| NodeName: nodeName, | ||
| Reasons: []string{obj.Error()}, | ||
| } | ||
| } | ||
|
|
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| f.nodes[nodeName] = fe | ||
| } | ||
|
|
||
| // Error returns the final error message | ||
| func (f *FitErrors) Error() string { | ||
| reasons := make(map[string]int) | ||
|
|
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| for _, node := range f.nodes { | ||
| for _, reason := range node.Reasons { | ||
| reasons[reason]++ | ||
| } | ||
| } | ||
|
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| sortReasonsHistogram := func() []string { | ||
| reasonStrings := []string{} | ||
| for k, v := range reasons { | ||
| reasonStrings = append(reasonStrings, fmt.Sprintf("%v %v", v, k)) | ||
| } | ||
| sort.Strings(reasonStrings) | ||
| return reasonStrings | ||
| } | ||
| if f.err == "" { | ||
| f.err = AllNodeUnavailableMsg | ||
| } | ||
| reasonMsg := fmt.Sprintf(f.err+": %v.", strings.Join(sortReasonsHistogram(), ", ")) | ||
| return reasonMsg | ||
| } | ||
|
|
||
| // FitError describe the reason why task could not fit that node | ||
| type FitError struct { | ||
| taskNamespace string | ||
| taskName string | ||
| NodeName string | ||
| Reasons []string | ||
| } | ||
|
|
||
| // NewFitError return FitError by message | ||
| func NewFitError(task *TaskInfo, node *NodeInfo, message ...string) *FitError { | ||
| fe := &FitError{ | ||
| taskName: task.Name, | ||
| taskNamespace: task.Namespace, | ||
| NodeName: node.Name, | ||
| Reasons: message, | ||
| } | ||
| return fe | ||
| } | ||
|
|
||
| // NewFitErrorByReasons return FitError by reasons | ||
| func NewFitErrorByReasons(task *TaskInfo, node *NodeInfo, reasons ...algorithm.PredicateFailureReason) *FitError { | ||
| message := make([]string, 0, len(reasons)) | ||
| for _, reason := range reasons { | ||
| message = append(message, reason.GetReason()) | ||
| } | ||
| return NewFitError(task, node, message...) | ||
| } | ||
|
|
||
| // Error returns the final error message | ||
| func (f *FitError) Error() string { | ||
| return fmt.Sprintf("task %s/%s on node %s fit failed: %s", f.taskNamespace, f.taskName, f.NodeName, strings.Join(f.Reasons, ", ")) | ||
| } |
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