tsdb

package
v2.0.0-beta.12 Latest Latest
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 Go to latest Published: Jun 11, 2020 License: MIT Imports: 12 Imported by: 2

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func DecodeName 

func DecodeName(name [16]byte) (org, bucket influxdb.ID)

DecodeName converts tsdb internal serialization back to organization and bucket IDs.

func DecodeNameSlice 

func DecodeNameSlice(name []byte) (org, bucket influxdb.ID)

DecodeNameSlice converts tsdb internal serialization back to organization and bucket IDs.

func EncodeName 

func EncodeName(org, bucket influxdb.ID) [16]byte

EncodeName converts org/bucket pairs to the tsdb internal serialization

func EncodeNameSlice 

func EncodeNameSlice(org, bucket influxdb.ID) []byte

EncodeNameSlice converts org/bucket pairs to the tsdb internal serialization but returns a byte slice.

func EncodeNameString 

func EncodeNameString(org, bucket influxdb.ID) string

EncodeNameString converts org/bucket pairs to the tsdb internal serialization

func EncodeOrgName 

func EncodeOrgName(org influxdb.ID) [8]byte

EncodeOrgName converts org to the tsdb internal serialization that may be used as a prefix when searching for keys matching a specific organization.

func ExplodePoints 

func ExplodePoints(org, bucket influxdb.ID, points []models.Point) ([]models.Point, error)

ExplodePoints creates a list of points that only contains one field per point. It also moves the measurement to a tag, and changes the measurement to be the provided argument.

func MakeTagsKey 

func MakeTagsKey(keys []string, tags models.Tags) []byte

MakeTagsKey converts a tag set to bytes for use as a lookup key.

Types

type MeasurementIterator 

type MeasurementIterator interface {
	Close() error
	Next() ([]byte, error)
}

MeasurementIterator represents a iterator over a list of measurements.

func MergeMeasurementIterators 

func MergeMeasurementIterators(itrs ...MeasurementIterator) MeasurementIterator

MergeMeasurementIterators returns an iterator that merges a set of iterators. Iterators that are first in the list take precedence and a deletion by those early iterators will invalidate elements by later iterators.

type PartialWriteError 

type PartialWriteError struct {
	Reason  string
	Dropped int

	// A sorted slice of series keys that were dropped.
	DroppedKeys [][]byte
}

PartialWriteError indicates a write request could only write a portion of the requested values.

func (PartialWriteError) Error 

func (e PartialWriteError) Error() string

type SeriesCollection 

type SeriesCollection struct {
	Points     []models.Point
	Keys       [][]byte
	SeriesKeys [][]byte
	Names      [][]byte
	Tags       []models.Tags
	Types      []models.FieldType
	SeriesIDs  []SeriesID

	// Keeps track of invalid entries.
	Dropped     uint64
	DroppedKeys [][]byte
	Reason      string
	// contains filtered or unexported fields
}

SeriesCollection is a struct of arrays representation of a collection of series that allows for efficient filtering.

func NewSeriesCollection 

func NewSeriesCollection(points []models.Point) *SeriesCollection

NewSeriesCollection builds a SeriesCollection from a slice of points. It does some filtering of invalid points.

func (*SeriesCollection) Advance 

func (s *SeriesCollection) Advance(length int)

Advance will advance all of the slices that can length elements: x = x[length:].

func (*SeriesCollection) ApplyConcurrentDrops 

func (s *SeriesCollection) ApplyConcurrentDrops()

ApplyConcurrentDrops will remove all of the dropped values during concurrent iteration. It should not be called concurrently with any calls to Invalid.

func (*SeriesCollection) Copy 

func (s *SeriesCollection) Copy(dst, src int)

Copy will copy the element at src into dst in all slices that can: x[dst] = x[src].

func (SeriesCollection) Duplicate 

func (s SeriesCollection) Duplicate() *SeriesCollection

Duplicate returns a copy of the SeriesCollection. The slices are shared. Appending to any of them may or may not be reflected.

func (*SeriesCollection) InvalidateAll 

func (s *SeriesCollection) InvalidateAll(reason string)

InvalidateAll causes all of the entries to become invalid.

func (*SeriesCollection) Iterator 

func (s *SeriesCollection) Iterator() SeriesCollectionIterator

Iterator returns a new iterator over the entries in the collection. Multiple iterators can exist at the same time. Marking entries as invalid/skipped is more expensive, but thread safe. You must call ApplyConcurrentDrops after all of the iterators are finished.

func (*SeriesCollection) Length 

func (s *SeriesCollection) Length() int

Length returns the length of the first non-nil slice in the collection, or 0 if there is no non-nil slice.

func (*SeriesCollection) PartialWriteError 

func (s *SeriesCollection) PartialWriteError() error

PartialWriteError returns a PartialWriteError if any entries have been marked as invalid. It returns an error to avoid `return collection.PartialWriteError()` always being non-nil.

func (*SeriesCollection) Swap 

func (s *SeriesCollection) Swap(i, j int)

Swap will swap the elements at i and j in all slices that can: x[i], x[j] = x[j], x[i].

func (*SeriesCollection) Truncate 

func (s *SeriesCollection) Truncate(length int)

Truncate will truncate all of the slices that can down to length: x = x[:length].

type SeriesCollectionIterator 

type SeriesCollectionIterator struct {
	// contains filtered or unexported fields
}

SeriesCollectionIterator is an iterator over the collection of series.

func (SeriesCollectionIterator) Index 

func (i SeriesCollectionIterator) Index() int

func (*SeriesCollectionIterator) Invalid 

func (i *SeriesCollectionIterator) Invalid(reason string)

Invalid flags the current entry as invalid, including it in the set of dropped keys and recording a reason. Only the first reason is kept. This is safe for concurrent callers, but ApplyConcurrentDrops must be called after all iterators are finished.

func (SeriesCollectionIterator) Key 

func (i SeriesCollectionIterator) Key() []byte

func (SeriesCollectionIterator) Length 

func (i SeriesCollectionIterator) Length() int

func (SeriesCollectionIterator) Name 

func (i SeriesCollectionIterator) Name() []byte

func (*SeriesCollectionIterator) Next 

func (i *SeriesCollectionIterator) Next() bool

Next advances the iterator and returns false if it's done.

func (SeriesCollectionIterator) Point 

func (i SeriesCollectionIterator) Point() models.Point

func (SeriesCollectionIterator) SeriesID 

func (i SeriesCollectionIterator) SeriesID() SeriesID

func (SeriesCollectionIterator) SeriesKey 

func (i SeriesCollectionIterator) SeriesKey() []byte

func (SeriesCollectionIterator) Tags 

func (i SeriesCollectionIterator) Tags() models.Tags

func (SeriesCollectionIterator) Type 

func (i SeriesCollectionIterator) Type() models.FieldType

type SeriesID 

type SeriesID struct{ ID uint64 }

SeriesID is the type of a series id. It is logically a uint64, but encoded as a struct so that we gain more type checking when changing operations on it. The field is exported only so that tests that use reflection based comparisons still work; no one should use the field directly.

func NewSeriesID 

func NewSeriesID(id uint64) SeriesID

NewSeriesID constructs a series id from the raw value. It discards any type information.

func (SeriesID) Greater 

func (s SeriesID) Greater(o SeriesID) bool

Greater returns if the SeriesID is greater than the passed in value.

func (SeriesID) IsZero 

func (s SeriesID) IsZero() bool

IsZero returns if the SeriesID is zero.

func (SeriesID) Less 

func (s SeriesID) Less(o SeriesID) bool

Less returns if the SeriesID is less than the passed in value.

func (SeriesID) RawID 

func (s SeriesID) RawID() uint64

ID returns the raw id for the SeriesID.

func (SeriesID) WithType 

func (s SeriesID) WithType(typ models.FieldType) SeriesIDTyped

WithType constructs a SeriesIDTyped with the given type.

type SeriesIDElem 

type SeriesIDElem struct {
	SeriesID SeriesID
	Expr     influxql.Expr
}

SeriesIDElem represents a single series and optional expression.

type SeriesIDExprIterator 

type SeriesIDExprIterator struct {
	// contains filtered or unexported fields
}

seriesIDExprIterator is an iterator that attaches an associated expression.

func (*SeriesIDExprIterator) Close 

func (itr *SeriesIDExprIterator) Close() error

func (*SeriesIDExprIterator) Next 

func (itr *SeriesIDExprIterator) Next() (SeriesIDElem, error)

Next returns the next element in the iterator.

type SeriesIDIterator 

type SeriesIDIterator interface {
	Next() (SeriesIDElem, error)
	Close() error
}

SeriesIDIterator represents a iterator over a list of series ids.

func DifferenceSeriesIDIterators 

func DifferenceSeriesIDIterators(itr0, itr1 SeriesIDIterator) SeriesIDIterator

DifferenceSeriesIDIterators returns an iterator that only returns series which occur the first iterator but not the second iterator.

func IntersectSeriesIDIterators 

func IntersectSeriesIDIterators(itr0, itr1 SeriesIDIterator) SeriesIDIterator

IntersectSeriesIDIterators returns an iterator that only returns series which occur in both iterators. If both series have associated expressions then they are combined together.

func MergeSeriesIDIterators 

func MergeSeriesIDIterators(itrs ...SeriesIDIterator) SeriesIDIterator

MergeSeriesIDIterators returns an iterator that merges a set of iterators. Iterators that are first in the list take precedence and a deletion by those early iterators will invalidate elements by later iterators.

func NewSeriesIDExprIterator 

func NewSeriesIDExprIterator(itr SeriesIDIterator, expr influxql.Expr) SeriesIDIterator

newSeriesIDExprIterator returns a new instance of seriesIDExprIterator.

func UnionSeriesIDIterators 

func UnionSeriesIDIterators(itr0, itr1 SeriesIDIterator) SeriesIDIterator

UnionSeriesIDIterators returns an iterator that returns series from both both iterators. If both series have associated expressions then they are combined together.

type SeriesIDIterators 

type SeriesIDIterators []SeriesIDIterator

func (SeriesIDIterators) Close 

func (a SeriesIDIterators) Close() (err error)

type SeriesIDSet 

type SeriesIDSet struct {
	sync.RWMutex
	// contains filtered or unexported fields
}

SeriesIDSet represents a lockable bitmap of series ids.

func NewSeriesIDSet 

func NewSeriesIDSet(a ...SeriesID) *SeriesIDSet

NewSeriesIDSet returns a new instance of SeriesIDSet.

func NewSeriesIDSetNegate 

func NewSeriesIDSetNegate(a, b *SeriesIDSet) *SeriesIDSet

NewSeriesIDSetNegate returns a new SeriesIDSet containing all the elements in a that are not present in b. That is, the set difference between a and b.

func (*SeriesIDSet) Add 

func (s *SeriesIDSet) Add(id SeriesID)

Add adds the series id to the set.

func (*SeriesIDSet) AddMany 

func (s *SeriesIDSet) AddMany(ids ...SeriesID)

AddMany adds multiple ids to the SeriesIDSet. AddMany takes a lock, so may not be optimal to call many times with few ids.

func (*SeriesIDSet) AddNoLock 

func (s *SeriesIDSet) AddNoLock(id SeriesID)

AddNoLock adds the series id to the set. Add is not safe for use from multiple goroutines. Callers must manage synchronization.

func (*SeriesIDSet) And 

func (s *SeriesIDSet) And(other *SeriesIDSet) *SeriesIDSet

And returns a new SeriesIDSet containing elements that were present in s and other.

func (*SeriesIDSet) Bytes 

func (s *SeriesIDSet) Bytes() int

Bytes estimates the memory footprint of this SeriesIDSet, in bytes.

func (*SeriesIDSet) Cardinality 

func (s *SeriesIDSet) Cardinality() uint64

Cardinality returns the cardinality of the SeriesIDSet.

func (*SeriesIDSet) Clear 

func (s *SeriesIDSet) Clear()

Clear clears the underlying bitmap for re-use. Clear is safe for use by multiple goroutines.

func (*SeriesIDSet) ClearNoLock 

func (s *SeriesIDSet) ClearNoLock()

ClearNoLock clears the underlying bitmap for re-use without taking a lock.

func (*SeriesIDSet) Clone 

func (s *SeriesIDSet) Clone() *SeriesIDSet

Clone returns a new SeriesIDSet with a deep copy of the underlying bitmap.

func (*SeriesIDSet) CloneNoLock 

func (s *SeriesIDSet) CloneNoLock() *SeriesIDSet

CloneNoLock calls Clone without taking a lock.

func (*SeriesIDSet) Contains 

func (s *SeriesIDSet) Contains(id SeriesID) bool

Contains returns true if the id exists in the set.

func (*SeriesIDSet) ContainsNoLock 

func (s *SeriesIDSet) ContainsNoLock(id SeriesID) bool

ContainsNoLock returns true if the id exists in the set. ContainsNoLock is not safe for use from multiple goroutines. The caller must manage synchronization.

func (*SeriesIDSet) Diff 

func (s *SeriesIDSet) Diff(other *SeriesIDSet)

Diff removes from s any elements also present in other.

func (*SeriesIDSet) Equals 

func (s *SeriesIDSet) Equals(other *SeriesIDSet) bool

Equals returns true if other and s are the same set of ids.

func (*SeriesIDSet) ForEach 

func (s *SeriesIDSet) ForEach(f func(id SeriesID))

ForEach calls f for each id in the set. The function is applied to the IDs in ascending order.

func (*SeriesIDSet) ForEachNoLock 

func (s *SeriesIDSet) ForEachNoLock(f func(id SeriesID))

ForEachNoLock calls f for each id in the set without taking a lock.

func (*SeriesIDSet) Iterator 

func (s *SeriesIDSet) Iterator() SeriesIDSetIterable

Iterator returns an iterator to the underlying bitmap. This iterator is not protected by a lock.

func (*SeriesIDSet) Merge 

func (s *SeriesIDSet) Merge(others ...*SeriesIDSet)

Merge merged the contents of others into s. The caller does not need to provide s as an argument, and the contents of s will always be present in s after Merge returns.

func (*SeriesIDSet) MergeInPlace 

func (s *SeriesIDSet) MergeInPlace(other *SeriesIDSet)

MergeInPlace merges other into s, modifying s in the process.

func (*SeriesIDSet) Remove 

func (s *SeriesIDSet) Remove(id SeriesID)

Remove removes the id from the set.

func (*SeriesIDSet) RemoveNoLock 

func (s *SeriesIDSet) RemoveNoLock(id SeriesID)

RemoveNoLock removes the id from the set. RemoveNoLock is not safe for use from multiple goroutines. The caller must manage synchronization.

func (*SeriesIDSet) RemoveSet 

func (s *SeriesIDSet) RemoveSet(other *SeriesIDSet)

RemoveSet removes all values in other from s, if they exist.

func (*SeriesIDSet) Slice 

func (s *SeriesIDSet) Slice() []uint64

Slice returns a slice of series ids.

func (*SeriesIDSet) String 

func (s *SeriesIDSet) String() string

func (*SeriesIDSet) UnmarshalBinary 

func (s *SeriesIDSet) UnmarshalBinary(data []byte) error

UnmarshalBinary unmarshals data into the set.

func (*SeriesIDSet) UnmarshalBinaryUnsafe 

func (s *SeriesIDSet) UnmarshalBinaryUnsafe(data []byte) error

UnmarshalBinaryUnsafe unmarshals data into the set. References to the underlying data are used so data should not be reused by caller.

func (*SeriesIDSet) WriteTo 

func (s *SeriesIDSet) WriteTo(w io.Writer) (int64, error)

WriteTo writes the set to w.

type SeriesIDSetIterable 

type SeriesIDSetIterable interface {
	HasNext() bool
	Next() uint32
}

type SeriesIDSetIterator 

type SeriesIDSetIterator interface {
	SeriesIDIterator
	SeriesIDSet() *SeriesIDSet
}

SeriesIDSetIterator represents an iterator that can produce a SeriesIDSet.

func NewSeriesIDSetIterator 

func NewSeriesIDSetIterator(ss *SeriesIDSet) SeriesIDSetIterator

func NewSeriesIDSetIterators 

func NewSeriesIDSetIterators(itrs []SeriesIDIterator) []SeriesIDSetIterator

NewSeriesIDSetIterators returns a slice of SeriesIDSetIterator if all itrs can be type casted. Otherwise returns nil.

type SeriesIDSliceIterator 

type SeriesIDSliceIterator struct {
	// contains filtered or unexported fields
}

SeriesIDSliceIterator iterates over a slice of series ids.

func NewSeriesIDSliceIterator 

func NewSeriesIDSliceIterator(ids []SeriesID) *SeriesIDSliceIterator

NewSeriesIDSliceIterator returns a SeriesIDIterator that iterates over a slice.

func (*SeriesIDSliceIterator) Close 

func (itr *SeriesIDSliceIterator) Close() error

func (*SeriesIDSliceIterator) Next 

func (itr *SeriesIDSliceIterator) Next() (SeriesIDElem, error)

Next returns the next series id in the slice.

func (*SeriesIDSliceIterator) SeriesIDSet 

func (itr *SeriesIDSliceIterator) SeriesIDSet() *SeriesIDSet

SeriesIDSet returns a set of all remaining ids.

type SeriesIDTyped 

type SeriesIDTyped struct{ ID uint64 }

SeriesIDType represents a series id with a type. It is logically a uint64, but encoded as a struct so that we gain more type checking when changing operations on it. The field is exported only so that tests that use reflection based comparisons still work; no one should use the field directly.

func NewSeriesIDTyped 

func NewSeriesIDTyped(id uint64) SeriesIDTyped

NewSeriesIDTyped constructs a typed series id from the raw values.

func (SeriesIDTyped) HasType 

func (s SeriesIDTyped) HasType() bool

HasType returns if the id actually contains a type.

func (SeriesIDTyped) IsZero 

func (s SeriesIDTyped) IsZero() bool

IsZero returns if the SeriesIDTyped is zero. It ignores any type information.

func (SeriesIDTyped) RawID 

func (s SeriesIDTyped) RawID() uint64

ID returns the raw id for the SeriesIDTyped.

func (SeriesIDTyped) SeriesID 

func (s SeriesIDTyped) SeriesID() SeriesID

SeriesID constructs a SeriesID, discarding any type information.

func (SeriesIDTyped) Type 

func (s SeriesIDTyped) Type() models.FieldType

Type returns the associated type.

type TagKeyIterator 

type TagKeyIterator interface {
	Close() error
	Next() ([]byte, error)
}

TagKeyIterator represents a iterator over a list of tag keys.

func MergeTagKeyIterators 

func MergeTagKeyIterators(itrs ...TagKeyIterator) TagKeyIterator

MergeTagKeyIterators returns an iterator that merges a set of iterators.

type TagValueIterator 

type TagValueIterator interface {
	Close() error
	Next() ([]byte, error)
}

TagValueIterator represents a iterator over a list of tag values.

func MergeTagValueIterators 

func MergeTagValueIterators(itrs ...TagValueIterator) TagValueIterator

MergeTagValueIterators returns an iterator that merges a set of iterators.

Source Files

View all Source files

Directories

Path Synopsis
Package migrate provides tooling to migrate data from InfluxDB 1.x to 2.x
 Package migrate provides tooling to migrate data from InfluxDB 1.x to 2.x
internal
Package meta is a generated protocol buffer package.
 Package meta is a generated protocol buffer package.
Package tsi1 provides a memory-mapped index implementation that supports high cardinality series.
 Package tsi1 provides a memory-mapped index implementation that supports high cardinality series.
Package tsm1 provides a TSDB in the Time Structured Merge tree format.
 Package tsm1 provides a TSDB in the Time Structured Merge tree format.

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