mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 22:52:11 +01:00
55 lines
2.3 KiB
Go
55 lines
2.3 KiB
Go
package logstorage
|
|
|
|
// maxUncompressedIndexBlockSize contains the maximum length of uncompressed block with blockHeader entries aka index block.
|
|
//
|
|
// The real block length can exceed this value by a small percentage because of the block write details.
|
|
const maxUncompressedIndexBlockSize = 128 * 1024
|
|
|
|
// maxUncompressedBlockSize is the maximum size of uncompressed block in bytes.
|
|
//
|
|
// The real uncompressed block can exceed this value by up to 2 times because of block merge details.
|
|
const maxUncompressedBlockSize = 2 * 1024 * 1024
|
|
|
|
// maxRowsPerBlock is the maximum number of log entries a single block can contain.
|
|
const maxRowsPerBlock = 8 * 1024 * 1024
|
|
|
|
// maxColumnsPerBlock is the maximum number of columns per block.
|
|
const maxColumnsPerBlock = 1_000
|
|
|
|
// MaxFieldNameSize is the maximum size in bytes for field name.
|
|
//
|
|
// Longer field names are truncated during data ingestion to MaxFieldNameSize length.
|
|
const MaxFieldNameSize = 128
|
|
|
|
// maxConstColumnValueSize is the maximum size in bytes for const column value.
|
|
//
|
|
// Const column values are stored in columnsHeader, which is read every time the corresponding block is scanned during search queries.
|
|
// So it is better to store bigger values in regular columns in order to speed up search speed.
|
|
const maxConstColumnValueSize = 256
|
|
|
|
// maxIndexBlockSize is the maximum size of the block with blockHeader entries (aka indexBlock)
|
|
const maxIndexBlockSize = 8 * 1024 * 1024
|
|
|
|
// maxTimestampsBlockSize is the maximum size of timestamps block
|
|
const maxTimestampsBlockSize = 8 * 1024 * 1024
|
|
|
|
// maxValuesBlockSize is the maximum size of values block
|
|
const maxValuesBlockSize = 8 * 1024 * 1024
|
|
|
|
// maxBloomFilterBlockSize is the maximum size of bloom filter block
|
|
const maxBloomFilterBlockSize = 8 * 1024 * 1024
|
|
|
|
// maxColumnsHeaderSize is the maximum size of columnsHeader block
|
|
const maxColumnsHeaderSize = 8 * 1024 * 1024
|
|
|
|
// maxDictSizeBytes is the maximum length of all the keys in the valuesDict.
|
|
//
|
|
// Dict is stored in columnsHeader, which is read every time the corresponding block is scanned during search qieries.
|
|
// So it is better to store bigger values in regular columns in order to speed up search speed.
|
|
const maxDictSizeBytes = 256
|
|
|
|
// maxDictLen is the maximum number of entries in the valuesDict.
|
|
//
|
|
// it shouldn't exceed 255, since the dict len is marshaled into a single byte.
|
|
const maxDictLen = 8
|