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前言
- 本文对 Elasticsearch 7.10 实用
- Elasticsearch 7.10 对应 Lucene 8.7
- Lucene 8.7 对于扩展名的官网文档 https://lucene.apache.org/cor…
一一解释
segments_N
- Name: Segments File
- Brief Description: Stores information about a commit point
write.lock
- Name: Lock File
- Brief Description: The Write lock prevents multiple IndexWriters from writing to the same file.
.si
- Name: Segment Info
- Brief Description: Stores metadata about a segment
.cfs, .cfe
- Name: Compound File
- Brief Description: An optional “virtual” file consisting of all the other index files for systems that frequently run out of file handles.
.fnm
- Name: Fields
- Brief Description: Stores information about the fields
- field 数据元信息
.fdx
- Name: Field Index
- Brief Description: Contains pointers to field data
.fdt
- Name: Field Data
- Brief Description: The stored fields for documents
.tim
- Name: Term Dictionary
- Brief Description: The term dictionary, stores term info
- 倒排表指针
.tip
- Name: Term Index
- Brief Description: The index into the Term Dictionary
- 词典索引
.doc
- Name: Frequencies
- Brief Description: Contains the list of docs which contain each term along with frequency
- 蕴含 term 和频率的文档列表
.pos
- Name: Positions
- Brief Description: Stores position information about where a term occurs in the index
.pay
- Name: Payloads
- Brief Description: Stores additional per-position metadata information such as character offsets and user payloads
.nvd, .nvm
- Name: Norms
- Brief Description: Encodes length and boost factors for docs and fields
.dvd, .dvm
- Name: Per-Document Values
- Brief Description: Encodes additional scoring factors or other per-document information.
.tvx
- Name: Term Vector Index
- Brief Description: Stores offset into the document data file
.tvd
- Name: Term Vector Data
- Brief Description: Contains term vector data.
.liv
- Name: Live Documents
- Brief Description: Info about what documents are live
.dii, .dim
- Name: Point values
- Brief Description: Holds indexed points, if any
本文出自 qbit snap
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