Sample Flowchart Template

Store

+ shards  + databases+ SeriesFiles(series data存储serieskey)+ pendingShardDeletes...

数据写入

Index

+ partitions  + TagValueSeriesIDCache(index map) （LRU cache）+ SeriesFile(series data存储serieskey)+ pendingShardDeletes...

WAL

+ WALSegmentWriter  + currentSegmentID...

partition

+ partitions []*partition + store map[string]*entry ...

SeriesSegment

+ data  + file+ bufio.Writer...

存储serieskey

SeriesFile

+ SeriesPartitions  ...

SeriesPartition

+ seriesSegments  + SeriesIndex...

CompactTSI文件的合并

serieskey写入seriesfile系统生成seriesid

seriesid和serieskey写入log系统相当于WAL

LogFile

更新LRU缓存

execSeriesEntry构建内存中的TSI模型，写内存

compactLogFile将log构建成tsi文件

ring

+ partitions []*partition  ...

Shard

+ database+ retentionPolicy+ sfile   *SeriesFile（series data）+ _engine+ index...

+ sfile         *tsdb.SeriesFile  + activeLogFile *LogFile（WAL）+ fileSet       *FileSet+ seriesIDSet *tsdb.SeriesIDSet+ levels          []CompactionLevel+ fieldset *tsdb.MeasurementFieldSet...

CheckLogFile

compactor

+ filestore  ...

SeriesIndex

+ data  + keyIDData (serieskey->seriesid)+ idOffsetData (seriesid->offset)...

Cache

+ storer  + snapshot *Cache...

Engine

+ index  + SeriesFile+ MeasurementFieldSet+ WAL+ Cache+ Compactor+ FileStore+ scheduler+ SeriesIDSets+ seriesTypeMap *radix.Tree...