diff --git a/internal/authorizer.go b/internal/authorizer.go
index 85a0737aa5..39e8145c6c 100644
--- a/internal/authorizer.go
+++ b/internal/authorizer.go
@@ -19,7 +19,7 @@ func (a *AuthorizerMock) AuthorizeDatabase(p influxql.Privilege, name string) bo
 	return a.AuthorizeDatabaseFn(p, name)
 }
 
-// AuthorizeQuery determins if the query can be executed against the provided
+// AuthorizeQuery determines if the query can be executed against the provided
 // database.
 func (a *AuthorizerMock) AuthorizeQuery(database string, query *influxql.Query) error {
 	return a.AuthorizeQueryFn(database, query)
diff --git a/internal/tsdb_store.go b/internal/tsdb_store.go
index f8b88f07f7..cdec05f466 100644
--- a/internal/tsdb_store.go
+++ b/internal/tsdb_store.go
@@ -28,7 +28,7 @@ type TSDBStoreMock struct {
 	DiskSizeFn                func() (int64, error)
 	ExpandSourcesFn           func(sources influxql.Sources) (influxql.Sources, error)
 	ImportShardFn             func(id uint64, r io.Reader) error
-	MeasurementSeriesCountsFn func(database string) (measuments int, series int)
+	MeasurementSeriesCountsFn func(database string) (measurements int, series int)
 	MeasurementsCardinalityFn func(database string) (int64, error)
 	MeasurementNamesFn        func(auth query.Authorizer, database string, cond influxql.Expr) ([][]byte, error)
 	OpenFn                    func() error
@@ -95,7 +95,7 @@ func (s *TSDBStoreMock) ImportShard(id uint64, r io.Reader) error {
 func (s *TSDBStoreMock) MeasurementNames(auth query.Authorizer, database string, cond influxql.Expr) ([][]byte, error) {
 	return s.MeasurementNamesFn(auth, database, cond)
 }
-func (s *TSDBStoreMock) MeasurementSeriesCounts(database string) (measuments int, series int) {
+func (s *TSDBStoreMock) MeasurementSeriesCounts(database string) (measurements int, series int) {
 	return s.MeasurementSeriesCountsFn(database)
 }
 func (s *TSDBStoreMock) MeasurementsCardinality(database string) (int64, error) {
diff --git a/pkg/encoding/simple8b/encoding.go b/pkg/encoding/simple8b/encoding.go
index b6e7c2f1d0..03bd281b41 100644
--- a/pkg/encoding/simple8b/encoding.go
+++ b/pkg/encoding/simple8b/encoding.go
@@ -501,7 +501,7 @@ func DecodeBytesBigEndian(dst []uint64, src []byte) (value int, err error) {
 	return j, nil
 }
 
-// canPack returs true if n elements from in can be stored using bits per element
+// canPack returns true if n elements from in can be stored using bits per element
 func canPack(src []uint64, n, bits int) bool {
 	if len(src) < n {
 		return false
diff --git a/pkg/pool/bytes.go b/pkg/pool/bytes.go
index 5fdb3d338e..be1d2ec958 100644
--- a/pkg/pool/bytes.go
+++ b/pkg/pool/bytes.go
@@ -85,7 +85,7 @@ func (p *LimitedBytes) Get(sz int) []byte {
 
 // Put returns a slice back to the pool.  If the pool is full, the byte
 // slice is discarded.  If the byte slice is over the configured max size
-// of any byte slice in the pool, it is discared.
+// of any byte slice in the pool, it is discarded.
 func (p *LimitedBytes) Put(c []byte) {
 	// Drop buffers that are larger than the max size
 	if cap(c) >= p.maxSize {
diff --git a/tsdb/engine/tsm1/batch_boolean.go b/tsdb/engine/tsm1/batch_boolean.go
index 7b99390081..98d4999b30 100644
--- a/tsdb/engine/tsm1/batch_boolean.go
+++ b/tsdb/engine/tsm1/batch_boolean.go
@@ -6,7 +6,7 @@ import (
 )
 
 // BooleanArrayEncodeAll encodes src into b, returning b and any error encountered.
-// The returned slice may be of a different length and capactity to b.
+// The returned slice may be of a different length and capacity to b.
 func BooleanArrayEncodeAll(src []bool, b []byte) ([]byte, error) {
 	sz := 1 + 8 + ((len(src) + 7) / 8) // Header + Num bools + bool data.
 	if len(b) < sz && cap(b) > sz {
diff --git a/tsdb/engine/tsm1/batch_float.go b/tsdb/engine/tsm1/batch_float.go
index eb1787473e..336182684a 100644
--- a/tsdb/engine/tsm1/batch_float.go
+++ b/tsdb/engine/tsm1/batch_float.go
@@ -10,7 +10,7 @@ import (
 )
 
 // FloatArrayEncodeAll encodes src into b, returning b and any error encountered.
-// The returned slice may be of a different length and capactity to b.
+// The returned slice may be of a different length and capacity to b.
 //
 // Currently only the float compression scheme used in Facebook's Gorilla is
 // supported, so this method implements a batch oriented version of that.
@@ -106,7 +106,7 @@ func FloatArrayEncodeAll(src []float64, b []byte) ([]byte, error) {
 				}
 
 				// Full value to write.
-				v := (vDelta >> prevTrailing) << (64 - l) // l least signifciant bits of v.
+				v := (vDelta >> prevTrailing) << (64 - l) // l least significant bits of v.
 
 				var m = n & 7 // Current bit in current byte.
 				var written uint64
diff --git a/tsdb/engine/tsm1/batch_integer.go b/tsdb/engine/tsm1/batch_integer.go
index b97084dc42..f33fcee0cf 100644
--- a/tsdb/engine/tsm1/batch_integer.go
+++ b/tsdb/engine/tsm1/batch_integer.go
@@ -9,7 +9,7 @@ import (
 )
 
 // IntegerArrayEncodeAll encodes src into b, returning b and any error encountered.
-// The returned slice may be of a different length and capactity to b.
+// The returned slice may be of a different length and capacity to b.
 //
 // IntegerArrayEncodeAll implements batch oriented versions of the three integer
 // encoding types we support: uncompressed, simple8b and RLE.
@@ -26,7 +26,7 @@ func IntegerArrayEncodeAll(src []int64, b []byte) ([]byte, error) {
 
 	// To prevent an allocation of the entire block we're encoding reuse the
 	// src slice to store the encoded deltas.
-	deltas := reintepretInt64ToUint64Slice(src)
+	deltas := reinterpretInt64ToUint64Slice(src)
 	for i := len(deltas) - 1; i > 0; i-- {
 		deltas[i] = deltas[i] - deltas[i-1]
 		deltas[i] = ZigZagEncode(int64(deltas[i]))
@@ -115,7 +115,7 @@ func IntegerArrayEncodeAll(src []int64, b []byte) ([]byte, error) {
 }
 
 // UnsignedArrayEncodeAll encodes src into b, returning b and any error encountered.
-// The returned slice may be of a different length and capactity to b.
+// The returned slice may be of a different length and capacity to b.
 //
 // UnsignedArrayEncodeAll implements batch oriented versions of the three integer
 // encoding types we support: uncompressed, simple8b and RLE.
@@ -124,7 +124,7 @@ func IntegerArrayEncodeAll(src []int64, b []byte) ([]byte, error) {
 // scratch space for delta encoded values. It is NOT SAFE to use src after
 // passing it into IntegerArrayEncodeAll.
 func UnsignedArrayEncodeAll(src []uint64, b []byte) ([]byte, error) {
-	srcint := reintepretUint64ToInt64Slice(src)
+	srcint := reinterpretUint64ToInt64Slice(src)
 	return IntegerArrayEncodeAll(srcint, b)
 }
 
@@ -160,8 +160,8 @@ func UnsignedArrayDecodeAll(b []byte, dst []uint64) ([]uint64, error) {
 		encoding = 3 // integerBatchDecodeAllInvalid
 	}
 
-	res, err := integerBatchDecoderFunc[encoding&3](b, reintepretUint64ToInt64Slice(dst))
-	return reintepretInt64ToUint64Slice(res), err
+	res, err := integerBatchDecoderFunc[encoding&3](b, reinterpretUint64ToInt64Slice(dst))
+	return reinterpretInt64ToUint64Slice(res), err
 }
 
 func integerBatchDecodeAllUncompressed(b []byte, dst []int64) ([]int64, error) {
@@ -208,7 +208,7 @@ func integerBatchDecodeAllSimple(b []byte, dst []int64) ([]int64, error) {
 	dst[0] = ZigZagDecode(binary.BigEndian.Uint64(b))
 
 	// decode compressed values
-	buf := reintepretInt64ToUint64Slice(dst)
+	buf := reinterpretInt64ToUint64Slice(dst)
 	n, err := simple8b.DecodeBytesBigEndian(buf[1:], b[8:])
 	if err != nil {
 		return []int64{}, err
@@ -281,10 +281,10 @@ func integerBatchDecodeAllInvalid(b []byte, _ []int64) ([]int64, error) {
 	return []int64{}, fmt.Errorf("unknown encoding %v", b[0]>>4)
 }
 
-func reintepretInt64ToUint64Slice(src []int64) []uint64 {
+func reinterpretInt64ToUint64Slice(src []int64) []uint64 {
 	return *(*[]uint64)(unsafe.Pointer(&src))
 }
 
-func reintepretUint64ToInt64Slice(src []uint64) []int64 {
+func reinterpretUint64ToInt64Slice(src []uint64) []int64 {
 	return *(*[]int64)(unsafe.Pointer(&src))
 }
diff --git a/tsdb/engine/tsm1/batch_string.go b/tsdb/engine/tsm1/batch_string.go
index 1439cc9f61..739e986aa0 100644
--- a/tsdb/engine/tsm1/batch_string.go
+++ b/tsdb/engine/tsm1/batch_string.go
@@ -20,11 +20,11 @@ var (
 )
 
 // StringArrayEncodeAll encodes src into b, returning b and any error encountered.
-// The returned slice may be of a different length and capactity to b.
+// The returned slice may be of a different length and capacity to b.
 //
 // Currently only the string compression scheme used snappy.
 func StringArrayEncodeAll(src []string, b []byte) ([]byte, error) {
-	srcSz64 := int64(2 + len(src)*binary.MaxVarintLen32) // strings should't be longer than 64kb
+	srcSz64 := int64(2 + len(src)*binary.MaxVarintLen32) // strings shouldn't be longer than 64kb
 	for i := range src {
 		srcSz64 += int64(len(src[i]))
 	}
diff --git a/tsdb/engine/tsm1/batch_timestamp.go b/tsdb/engine/tsm1/batch_timestamp.go
index 30f1ed735c..d7cac55993 100644
--- a/tsdb/engine/tsm1/batch_timestamp.go
+++ b/tsdb/engine/tsm1/batch_timestamp.go
@@ -31,7 +31,7 @@ func TimeArrayEncodeAll(src []int64, b []byte) ([]byte, error) {
 
 	// To prevent an allocation of the entire block we're encoding reuse the
 	// src slice to store the encoded deltas.
-	deltas := reintepretInt64ToUint64Slice(src)
+	deltas := reinterpretInt64ToUint64Slice(src)
 
 	if len(deltas) > 1 {
 		for i := len(deltas) - 1; i > 0; i-- {
diff --git a/tsdb/engine/tsm1/compact.go b/tsdb/engine/tsm1/compact.go
index d89c731a19..2a157adb10 100644
--- a/tsdb/engine/tsm1/compact.go
+++ b/tsdb/engine/tsm1/compact.go
@@ -3,7 +3,7 @@ package tsm1
 // Compactions are the process of creating read-optimized TSM files.
 // The files are created by converting write-optimized WAL entries
 // to read-optimized TSM format.  They can also be created from existing
-// TSM files when there are tombstone records that neeed to be removed, points
+// TSM files when there are tombstone records that need to be removed, points
 // that were overwritten by later writes and need to updated, or multiple
 // smaller TSM files need to be merged to reduce file counts and improve
 // compression ratios.
@@ -110,7 +110,7 @@ type DefaultPlanner struct {
 	// compactFullWriteColdDuration specifies the length of time after
 	// which if no writes have been committed to the WAL, the engine will
 	// do a full compaction of the TSM files in this shard. This duration
-	// should always be greater than the CacheFlushWriteColdDuraion
+	// should always be greater than the CacheFlushWriteColdDuration
 	compactFullWriteColdDuration time.Duration
 
 	// lastPlanCheck is the last time Plan was called
@@ -255,7 +255,7 @@ func (c *DefaultPlanner) PlanLevel(level int) []CompactionGroup {
 		cur := generations[i]
 
 		// See if this generation is orphan'd which would prevent it from being further
-		// compacted until a final full compactin runs.
+		// compacted until a final full compaction runs.
 		if i < len(generations)-1 {
 			if cur.level() < generations[i+1].level() {
 				currentGen = append(currentGen, cur)
@@ -356,7 +356,7 @@ func (c *DefaultPlanner) PlanOptimize() []CompactionGroup {
 		}
 
 		// See if this generation is orphan'd which would prevent it from being further
-		// compacted until a final full compactin runs.
+		// compacted until a final full compaction runs.
 		if i < len(generations)-1 {
 			if cur.level() < generations[i+1].level() {
 				currentGen = append(currentGen, cur)
diff --git a/tsdb/engine/tsm1/float.go b/tsdb/engine/tsm1/float.go
index bf1e65447d..17c3f79c13 100644
--- a/tsdb/engine/tsm1/float.go
+++ b/tsdb/engine/tsm1/float.go
@@ -2,7 +2,7 @@ package tsm1
 
 /*
 This code is originally from: https://github.com/dgryski/go-tsz and has been modified to remove
-the timestamp compression fuctionality.
+the timestamp compression functionality.
 
 It implements the float compression as presented in: http://www.vldb.org/pvldb/vol8/p1816-teller.pdf.
 This implementation uses a sentinel value of NaN which means that float64 NaN cannot be stored using
diff --git a/tsdb/engine/tsm1/reader_test.go b/tsdb/engine/tsm1/reader_test.go
index 8e5a636ed1..f1cacbce7a 100644
--- a/tsdb/engine/tsm1/reader_test.go
+++ b/tsdb/engine/tsm1/reader_test.go
@@ -1905,7 +1905,7 @@ func mustMakeIndex(tb testing.TB, keys, blocks int) *indirectIndex {
 
 	indirect := NewIndirectIndex()
 	if err = indirect.UnmarshalBinary(bytes); err != nil {
-		tb.Fatalf("unexpected error unmarshaling index: %v", err)
+		tb.Fatalf("unexpected error unmarshalling index: %v", err)
 	}
 
 	return indirect
diff --git a/tsdb/engine/tsm1/timestamp.go b/tsdb/engine/tsm1/timestamp.go
index e60fa62d5d..c64d75734c 100644
--- a/tsdb/engine/tsm1/timestamp.go
+++ b/tsdb/engine/tsm1/timestamp.go
@@ -407,7 +407,7 @@ func CountTimestamps(b []byte) int {
 	case timeCompressedPackedSimple:
 		// First 9 bytes are the starting timestamp and scaling factor, skip over them
 		count, _ := simple8b.CountBytes(b[9:])
-		return count + 1 // +1 is for the first uncompressed timestamp, starting timestamep in b[1:9]
+		return count + 1 // +1 is for the first uncompressed timestamp, starting timestamp in b[1:9]
 	default:
 		return 0
 	}
diff --git a/tsdb/index/tsi1/file_set.go b/tsdb/index/tsi1/file_set.go
index 9e75561ea6..6777da94cf 100644
--- a/tsdb/index/tsi1/file_set.go
+++ b/tsdb/index/tsi1/file_set.go
@@ -467,7 +467,7 @@ type File interface {
 	MeasurementsSketches() (s, t estimator.Sketch, err error)
 	SeriesSketches() (s, t estimator.Sketch, err error)
 
-	// Bitmap series existance.
+	// Bitmap series existence.
 	SeriesIDSet() (*tsdb.SeriesIDSet, error)
 	TombstoneSeriesIDSet() (*tsdb.SeriesIDSet, error)
 
diff --git a/tsdb/series_file.go b/tsdb/series_file.go
index da7d21701a..ed083db569 100644
--- a/tsdb/series_file.go
+++ b/tsdb/series_file.go
@@ -401,7 +401,7 @@ func ParseSeriesKey(data []byte) (name []byte, tags models.Tags) {
 }
 
 // ParseSeriesKeyInto extracts the name and tags for data, parsing the tags into
-// dstTags, which is then returened.
+// dstTags, which is then returned.
 //
 // The returned dstTags may have a different length and capacity.
 func ParseSeriesKeyInto(data []byte, dstTags models.Tags) ([]byte, models.Tags) {