insufficient resource error: details of failure in failedPredicateMap

plugin/pkg/scheduler/algorithm/predicates/error.go

@@ -18,23 +18,32 @@ package predicates
 
 import "fmt"
 
-var (
-	ErrExceededMaxPodNumber   = newInsufficientResourceError("PodCount")
-	ErrInsufficientFreeCPU    = newInsufficientResourceError("CPU")
-	ErrInsufficientFreeMemory = newInsufficientResourceError("Memory")
+const (
+	podCountResourceName string = "PodCount"
+	cpuResourceName      string = "CPU"
+	memoryResoureceName  string = "Memory"
 )
 
 // InsufficientResourceError is an error type that indicates what kind of resource limit is
 // hit and caused the unfitting failure.
 type InsufficientResourceError struct {
-	// ResourceName tells the name of the resource that is insufficient
-	ResourceName string
+	// resourceName is the name of the resource that is insufficient
+	resourceName string
+	requested    int64
+	used         int64
+	capacity     int64
 }
 
-func newInsufficientResourceError(resourceName string) *InsufficientResourceError {
-	return &InsufficientResourceError{resourceName}
+func newInsufficientResourceError(resourceName string, requested, used, capacity int64) *InsufficientResourceError {
+	return &InsufficientResourceError{
+		resourceName: resourceName,
+		requested:    requested,
+		used:         used,
+		capacity:     capacity,
+	}
 }
 
 func (e *InsufficientResourceError) Error() string {
-	return fmt.Sprintf("Node didn't have enough resource: %s", e.ResourceName)
+	return fmt.Sprintf("Node didn't have enough resource: %s, requested: %d, used: %d, capacity: %d",
+		e.resourceName, e.requested, e.used, e.capacity)
 }