ho lokolloa ha DBMS e bulehileng , e etselitsoeng ho boloka ka nepo lihlopha tse kholo tsa data tse hokahaneng tse etsang kerafo e ka bang le li-node tse libilione le litrilione tsa likhokahano. Morero o ngotsoe ka C ++ le e nang le tumello tlas'a Apache 2.0. Lilaebrari tsa bareki bakeng sa ho fihlella DBMS li lokiselitsoe lipuo tsa Go, Python le Java. Qalo ea nts'etsopele ea DBMS VESoft matsatsing a 'maloa a fetileng karolo ea pele ea matsete ka chelete ea liranta tse limilione tse 8.
LIEKETSENG DBMS meralo e ajoang ntle le ho arolelana lisebelisoa (ho arolelanoa-ha ho letho), ho bolelang ho qalisoa ha mekhoa e ikemetseng le e ikemetseng ea ho etsa kopo ea graphd le mekhoa ea polokelo e bolokiloeng. Ts'ebeletso ea meta e hlophisa motsamao oa data mme e fana ka leseli la meta mabapi le graph. Ho netefatsa ho tsitsa ha data, ho sebelisoa protocol e thehiloeng ho algorithm .
Lintlha tse ka sehloohong tsa Nebula Graph:
- Tshireletso ka ho fana ka phihlello feela ho basebelisi ba netefalitsoeng bao tumello ea bona e behiloeng ka mokhoa oa taolo ea phihlello e thehiloeng ho karolo (RBAC).
- ho hokahanya mefuta e fapaneng ea lienjineri tsa polokelo. Ts'ehetso ea ho holisa puo ea tlhahiso ea lipotso ka li-algorithms tse ncha.
- Ho netefatsa latency e nyane ha o bala kapa o ngola data le ho boloka phallo e phahameng. Ho ka har'a sehlopha sa node e le 'ngoe ea graphd le li-database tse tharo tse bolokiloeng tsa 632 GB ka boholo, ho kenyeletsoa lekhalo la li-vertices tse limilione tse likete tse 1.2 le likarolo tse limilione tse likete tse 8.4, li-latencies li ne li le boemong ba li-milliseconds tse' maloa, 'me tlhahiso e ne e fihla ho likopo tse likete tse 140 motsotsoana. .
- Linear scalability.
- Puo ea potso e kang SQL e matla le e utloisisehang habonolo. Ts'ebetso e tšehelitsoeng e kenyelletsa GO (bilirectional traversal of graph vertices), GROUP BY, ORDER BY, LIMIT, UNION, UNION DISTINCT, INTERSECT, MINUS, PIPE (ho sebelisa sephetho sa potso e fetileng). Li-index le mefuta-futa e hlalosoang ke basebelisi lia tšehetsoa.
- Ho netefatsa boteng bo phahameng le ho mamella ho hloleha.
- Ts'ehetso ea ho theha linepe ka selae sa boemo ba database ho nolofatsa tlhahiso ea likopi tsa backup.
- E loketse ts'ebeliso ea indasteri (e seng e sebelisoa meahong ea JD, Meituan le Xiaohongshu).
- Bokhoni ba ho fetola sekema sa polokelo ea data le ho se ntlafatsa ntle le ho emisa kapa ho ama ts'ebetso e tsoelang pele.
- Tšehetso ea TTL ho fokotsa nako ea bophelo ba data.
- Litaelo tsa ho laola litlhophiso le li-host host.
- Lisebelisoa tsa ho laola mosebetsi le ho hlophisa ho qalisoa ha mosebetsi (tsa mesebetsi e tšehetsoeng hona joale ke COMPACT le FLUSH).
- Ts'ebetso ea ho fumana tsela e felletseng le tsela e khuts'oane lipakeng tsa li-vertices tse fanoeng.
- OLAP segokanyimmediamentsi sa sebolokigolo bakeng sa ho kopantswe le batho ba boraro analytics platforms.
- Lisebelisoa tsa ho kenya data ho tsoa ho lifaele tsa CSV kapa ho tsoa ho Spark.
- Romella metrics bakeng sa tlhahlobo o sebelisa Prometheus le Grafana.
- Sehokelo sa webo
bakeng sa ho bona ts'ebetso ea kerafo, ho tsamaisa li-graph, ho rala polokelo ea data le merero ea ho kenya.
Source: opennet.ru