Merge pull request #1380 from prometheus/fix-typos

Fix various typos in comments.

promql/analyzer.go

@@ -115,7 +115,7 @@ func (a *Analyzer) Prepare(ctx context.Context) (local.Preloader, error) {
 		return nil, errors.New("analysis must be performed before preparing query")
 	}
 	var err error
-	// The preloader must not be closed unless an error ocurred as closing
+	// The preloader must not be closed unless an error occured as closing
 	// unpins the preloaded chunks.
 	p := a.Storage.NewPreloader()
 	defer func() {

promql/ast.go

@@ -145,7 +145,7 @@ type NumberLiteral struct {
 }
 
 // ParenExpr wraps an expression so it cannot be disassembled as a consequence
-// of operator precendence.
+// of operator precedence.
 type ParenExpr struct {
 	Expr Expr
 }

promql/engine.go

@@ -868,7 +868,7 @@ func (ev *evaluator) vectorBinop(op itemType, lhs, rhs vector, matching *VectorM
 			if exists {
 				ev.errorf("multiple matches for labels: many-to-one matching must be explicit (group_left/group_right)")
 			}
-			matchedSigs[sig] = nil // Set existance to true.
+			matchedSigs[sig] = nil // Set existence to true.
 		} else {
 			// In many-to-one matching the grouping labels have to ensure a unique metric
 			// for the result vector. Check whether those labels have already been added for
@@ -915,7 +915,7 @@ func resultMetric(met metric.Metric, op itemType, labels ...model.LabelName) met
 		}
 		return met
 	}
-	// As we definitly write, creating a new metric is the easiest solution.
+	// As we definitely write, creating a new metric is the easiest solution.
 	m := model.Metric{}
 	for _, ln := range labels {
 		// Included labels from the `group_x` modifier are taken from the "many"-side.

promql/parse.go

@@ -48,7 +48,7 @@ func (e *ParseErr) Error() string {
 	return fmt.Sprintf("parse error at line %d, char %d: %s", e.Line, e.Pos, e.Err)
 }
 
-// ParseStmts parses the input and returns the resulting statements or any ocurring error.
+// ParseStmts parses the input and returns the resulting statements or any occuring error.
 func ParseStmts(input string) (Statements, error) {
 	p := newParser(input)
 
@@ -529,7 +529,7 @@ func (p *parser) expr() Expr {
 		// Parse the next operand.
 		rhs := p.unaryExpr()
 
-		// Assign the new root based on the precendence of the LHS and RHS operators.
+		// Assign the new root based on the precedence of the LHS and RHS operators.
 		if lhs, ok := expr.(*BinaryExpr); ok && lhs.Op.precedence() < op.precedence() {
 			expr = &BinaryExpr{
 				Op:  lhs.Op,

retrieval/discovery/kubernetes/types.go

@@ -78,7 +78,7 @@ type ObjectMeta struct {
 	Annotations map[string]string `json:"annotations,omitempty" description:"map of string keys and values that can be used by external tooling to store and retrieve arbitrary metadata about objects; see http://releases.k8s.io/HEAD/docs/user-guide/annotations.md"`
 }
 
-// Protocol defines network protocols supported for things like conatiner ports.
+// Protocol defines network protocols supported for things like container ports.
 type Protocol string
 
 const (
@@ -120,7 +120,7 @@ type ServiceSpec struct {
 	Ports []ServicePort `json:"ports"`
 }
 
-// ServicePort conatins information on service's port.
+// ServicePort contains information on service's port.
 type ServicePort struct {
 	// The IP protocol for this port. Supports "TCP" and "UDP".
 	// Default is TCP.

storage/local/chunk.go

@@ -214,7 +214,7 @@ type chunk interface {
 	// new version of the original chunk, followed by overflow chunks, if
 	// any. The first chunk returned might be the same as the original one
 	// or a newly allocated version. In any case, take the returned chunk as
-	// the relevant one and discard the orginal chunk.
+	// the relevant one and discard the original chunk.
 	add(sample *model.SamplePair) []chunk
 	clone() chunk
 	firstTime() model.Time

storage/local/storage.go

@@ -619,7 +619,7 @@ func (s *memorySeriesStorage) NeedsThrottling() bool {
 		float64(atomic.LoadInt64(&numMemChunks)) > float64(s.maxMemoryChunks)*toleranceFactorMemChunks {
 		select {
 		case s.throttled <- struct{}{}:
-		default: // Do nothing, signal aready pending.
+		default: // Do nothing, signal already pending.
 		}
 		return true
 	}
@@ -1243,7 +1243,7 @@ func (s *memorySeriesStorage) incNumChunksToPersist(by int) {
 //
 // This method is not goroutine-safe, but it is only ever called by the single
 // goroutine that is in charge of series maintenance. According to the returned
-// score, series maintenence should be sped up. If a score of 1 is returned,
+// score, series maintenance should be sped up. If a score of 1 is returned,
 // checkpointing based on dirty-series count should be disabled, and series
 // files should not by synced anymore provided the user has specified the
 // adaptive sync strategy.

util/stats/query_stats.go

@@ -37,7 +37,7 @@ const (
 	ViewDiskExtractionTime
 )
 
-// Return a string represenation of a QueryTiming identifier.
+// Return a string representation of a QueryTiming identifier.
 func (s QueryTiming) String() string {
 	switch s {
 	case TotalEvalTime: