logstorage

package
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Published: Sep 18, 2023 License: Apache-2.0 Imports: 32 Imported by: 1

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func PutLogRows

func PutLogRows(lr *LogRows)

PutLogRows returns lr to the pool.

func PutStreamTags

func PutStreamTags(st *StreamTags)

PutStreamTags returns st to the pool.

Types

type BlockColumn

type BlockColumn struct {
	// Name is the column name
	Name string

	// Values is column values
	Values []string
}

BlockColumn is a single column of a block of data

type DatadbStats

type DatadbStats struct {
	// InmemoryMergesTotal is the number of inmemory merges performed in the given datadb.
	InmemoryMergesTotal uint64

	// InmemoryActiveMerges is the number of currently active inmemory merges performed by the given datadb.
	InmemoryActiveMerges uint64

	// FileMergesTotal is the number of file merges performed in the given datadb.
	FileMergesTotal uint64

	// FileActiveMerges is the number of currently active file merges performed by the given datadb.
	FileActiveMerges uint64

	// InmemoryRowsCount is the number of rows, which weren't flushed to disk yet.
	InmemoryRowsCount uint64

	// FileRowsCount is the number of rows stored on disk.
	FileRowsCount uint64

	// InmemoryParts is the number of in-memory parts, which weren't flushed to disk yet.
	InmemoryParts uint64

	// FileParts is the number of file-based parts stored on disk.
	FileParts uint64

	// InmemoryBlocks is the number of in-memory blocks, which weren't flushed to disk yet.
	InmemoryBlocks uint64

	// FileBlocks is the number of file-based blocks stored on disk.
	FileBlocks uint64

	// CompressedInmemorySize is the size of compressed data stored in memory.
	CompressedInmemorySize uint64

	// CompressedFileSize is the size of compressed data stored on disk.
	CompressedFileSize uint64

	// UncompressedInmemorySize is the size of uncompressed data stored in memory.
	UncompressedInmemorySize uint64

	// UncompressedFileSize is the size of uncompressed data stored on disk.
	UncompressedFileSize uint64
}

DatadbStats contains various stats for datadb.

func (*DatadbStats) RowsCount

func (s *DatadbStats) RowsCount() uint64

RowsCount returns the number of rows stored in datadb.

type Field

type Field struct {
	// Name is the name of the field
	Name string

	// Value is the value of the field
	Value string
}

Field is a single field for the log entry.

func (*Field) Reset

func (f *Field) Reset()

Reset resets f for future re-use.

func (*Field) String

func (f *Field) String() string

String returns string representation of f.

type IndexdbStats

type IndexdbStats struct {
	// StreamsCreatedTotal is the number of log streams created since the indexdb initialization.
	StreamsCreatedTotal uint64

	// IndexdbSizeBytes is the size of data in indexdb.
	IndexdbSizeBytes uint64

	// IndexdbItemsCount is the number of items in indexdb.
	IndexdbItemsCount uint64

	// IndexdbBlocksCount is the number of blocks in indexdb.
	IndexdbBlocksCount uint64

	// IndexdbPartsCount is the number of parts in indexdb.
	IndexdbPartsCount uint64
}

IndexdbStats contains indexdb stats

type LogRows

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

LogRows holds a set of rows needed for Storage.MustAddRows

LogRows must be obtained via GetLogRows()

func GetLogRows

func GetLogRows(streamFields, ignoreFields []string) *LogRows

GetLogRows returns LogRows from the pool for the given streamFields.

streamFields is a set of field names, which must be associated with the stream. ignoreFields is a set of field names, which must be ignored during data ingestion.

Return back it to the pool with PutLogRows() when it is no longer needed.

func (*LogRows) GetRowString

func (lr *LogRows) GetRowString(idx int) string

GetRowString returns string representation of the row with the given idx.

func (*LogRows) Len

func (lr *LogRows) Len() int

Len returns the number of items in lr.

func (*LogRows) Less

func (lr *LogRows) Less(i, j int) bool

Less returns true if (streamID, timestamp) for row i is smaller than the (streamID, timestamp) for row j

func (*LogRows) MustAdd

func (lr *LogRows) MustAdd(tenantID TenantID, timestamp int64, fields []Field)

MustAdd adds a log entry with the given args to lr.

It is OK to modify the args after returning from the function, since lr copies all the args to internal data.

func (*LogRows) NeedFlush

func (lr *LogRows) NeedFlush() bool

NeedFlush returns true if lr contains too much data, so it must be flushed to the storage.

func (*LogRows) Reset

func (lr *LogRows) Reset()

Reset resets lr with all its settings.

Call ResetKeepSettings() for resetting lr without resetting its settings.

func (*LogRows) ResetKeepSettings

func (lr *LogRows) ResetKeepSettings()

ResetKeepSettings resets rows stored in lr, while keeping its settings passed to GetLogRows().

func (*LogRows) Swap

func (lr *LogRows) Swap(i, j int)

Swap swaps rows i and j in lr.

type PartitionStats

type PartitionStats struct {
	DatadbStats
	IndexdbStats
}

PartitionStats contains stats for the partition.

type Query

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

Query represents LogsQL query.

func ParseQuery

func ParseQuery(s string) (*Query, error)

ParseQuery parses s.

func (*Query) String

func (q *Query) String() string

String returns string representation for q.

type RowFormatter

type RowFormatter []Field

RowFormatter implementes fmt.Stringer for []Field aka a single log row

func (*RowFormatter) String

func (rf *RowFormatter) String() string

String returns user-readable representation for rf

type Storage

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

Storage is the storage for log entries.

func MustOpenStorage

func MustOpenStorage(path string, cfg *StorageConfig) *Storage

MustOpenStorage opens Storage at the given path.

MustClose must be called on the returned Storage when it is no longer needed.

func (*Storage) MustAddRows

func (s *Storage) MustAddRows(lr *LogRows)

MustAddRows adds lr to s.

func (*Storage) MustClose

func (s *Storage) MustClose()

MustClose closes s.

It is expected that nobody uses the storage at the close time.

func (*Storage) RunQuery

func (s *Storage) RunQuery(tenantIDs []TenantID, q *Query, stopCh <-chan struct{}, processBlock func(columns []BlockColumn))

RunQuery runs the given q and calls processBlock for results

func (*Storage) UpdateStats

func (s *Storage) UpdateStats(ss *StorageStats)

UpdateStats updates ss for the given s.

type StorageConfig

type StorageConfig struct {
	// Retention is the retention for the ingested data.
	//
	// Older data is automatically deleted.
	Retention time.Duration

	// FlushInterval is the interval for flushing the in-memory data to disk at the Storage
	FlushInterval time.Duration

	// FutureRetention is the allowed retention from the current time to future for the ingested data.
	//
	// Log entries with timestamps bigger than now+FutureRetention are ignored.
	FutureRetention time.Duration

	// LogNewStreams indicates whether to log newly created log streams.
	//
	// This can be useful for debugging of high cardinality issues.
	// https://docs.victoriametrics.com/VictoriaLogs/keyConcepts.html#high-cardinality
	LogNewStreams bool

	// LogIngestedRows indicates whether to log the ingested log entries.
	//
	// This can be useful for debugging of data ingestion.
	LogIngestedRows bool
}

StorageConfig is the config for the Storage.

type StorageStats

type StorageStats struct {
	// RowsDroppedTooBigTimestamp is the number of rows dropped during data ingestion because their timestamp is smaller than the minimum allowed
	RowsDroppedTooBigTimestamp uint64

	// RowsDroppedTooSmallTimestamp is the number of rows dropped during data ingestion because their timestamp is bigger than the maximum allowed
	RowsDroppedTooSmallTimestamp uint64

	// PartitionsCount is the number of partitions in the storage
	PartitionsCount uint64

	PartitionStats
}

StorageStats represents stats for the storage. It may be obtained by calling Storage.UpdateStats().

func (*StorageStats) Reset

func (s *StorageStats) Reset()

Reset resets s.

type StreamFilter

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

StreamFilter is a filter for streams, e.g. `_stream:{...}`

func (*StreamFilter) String

func (sf *StreamFilter) String() string

type StreamTags

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

StreamTags contains stream tags.

func GetStreamTags

func GetStreamTags() *StreamTags

GetStreamTags returns a StreamTags from pool.

func (*StreamTags) Add

func (st *StreamTags) Add(name, value string)

Add adds (name:value) tag to st.

func (*StreamTags) Len

func (st *StreamTags) Len() int

Len returns the number of tags in st.

func (*StreamTags) Less

func (st *StreamTags) Less(i, j int) bool

Less returns true if tag i is smaller than the tag j.

func (*StreamTags) MarshalCanonical

func (st *StreamTags) MarshalCanonical(dst []byte) []byte

MarshalCanonical marshal st in a canonical way

func (*StreamTags) Reset

func (st *StreamTags) Reset()

Reset resets st for re-use

func (*StreamTags) String

func (st *StreamTags) String() string

String returns string representation of st.

func (*StreamTags) Swap

func (st *StreamTags) Swap(i, j int)

Swap swaps i and j tags

func (*StreamTags) UnmarshalCanonical

func (st *StreamTags) UnmarshalCanonical(src []byte) ([]byte, error)

UnmarshalCanonical unmarshals st from src marshaled with MarshalCanonical.

type TenantID

type TenantID struct {
	// AccountID is the id of the account for the log stream.
	AccountID uint32

	// ProjectID is the id of the project for the log stream.
	ProjectID uint32
}

TenantID is an id of a tenant for log streams.

Each log stream is associated with a single TenantID.

func GetTenantIDFromRequest

func GetTenantIDFromRequest(r *http.Request) (TenantID, error)

GetTenantIDFromRequest returns tenantID from r.

func GetTenantIDFromString

func GetTenantIDFromString(s string) (TenantID, error)

GetTenantIDFromString returns tenantID from s. String is expected in the form of accountID:projectID

func (*TenantID) Reset

func (tid *TenantID) Reset()

Reset resets tid.

func (*TenantID) String

func (tid *TenantID) String() string

String returns human-readable representation of tid

type TimeFormatter

type TimeFormatter int64

TimeFormatter implements fmt.Stringer for timestamp in nanoseconds

func (*TimeFormatter) String

func (tf *TimeFormatter) String() string

String returns human-readable representation for tf.

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