Bargawar sakin farko na DBMS Nebula Graph mai tsarin jadawali

ya faru sakin buɗaɗɗen DBMS Hoton Nebula 1.0.0, an ƙera shi yadda ya kamata don adana manyan bayanai masu haɗin kai waɗanda ke samar da jadawali wanda zai iya ƙunsar biliyoyin nodes da tiriliyan na haɗin gwiwa. An rubuta aikin a cikin C++ da rarraba ta lasisi a ƙarƙashin Apache 2.0. An shirya ɗakunan karatu na abokin ciniki don samun damar DBMS don Go, Python da harsunan Java. Ƙaddamarwar ci gaban DBMS VESoft 'yan kwanaki da suka wuce samu kashi na farko na zuba jari a cikin adadin dala miliyan 8.

A cikin DBMS amfani gine-ginen da aka rarraba ba tare da raba albarkatu ba (raba-ba komai), yana nuna ƙaddamar da matakan sarrafa buƙatun jadawali masu zaman kansu da kai da kuma hanyoyin adanawa. Sabis na meta yana tsara motsin bayanai kuma yana ba da bayanan meta game da jadawali. Don tabbatar da daidaiton bayanai, ana amfani da ƙa'idar tushen algorithm RAFTING.

Babban fasali na Nebula Graph:

• Tsaro tsaro ta hanyar ba da dama ga ingantattun masu amfani waɗanda aka saita izini ta hanyar tsarin sarrafa tushen rawar rawa (RBAC).
• Dama haɗa nau'ikan injunan ajiya daban-daban. Taimakawa don faɗaɗa harshen tsarar tambaya tare da sababbin algorithms.
• Tabbatar da ƙarancin jinkiri lokacin karantawa ko rubuta bayanai da kiyaye babban abin da ake samarwa. A gwaji a cikin gungu na kumburi mai jadawali ɗaya da kuɗaɗen bayanai guda uku da aka adana na 632 GB mai girman, gami da garf na tsaye biliyan 1.2 da gefuna biliyan 8.4, latencies sun kasance a matakin millise seconds da yawa, kuma abin da aka samu ya kai buƙatun dubu 140 a sakan daya. .
  

• Mizani na layi.
• Harshen tambaya mai kama da SQL mai ƙarfi da sauƙin fahimta. Ayyukan da aka goyan bayan sun haɗa da GO (tafiya ta hanyar jadawali biyu), GROUP BY, ORDER BY, LIMIT, UNION, UNION DISTINCT, INTERSECT, MINUS, PIPE (amfani da sakamakon daga tambayar da ta gabata). Ana goyan bayan fihirisa da ma'anar masu amfani.
• Tabbatar da babban samuwa da juriya ga gazawa.
• Taimako don ƙirƙirar hotuna tare da yanki na jihar bayanan don sauƙaƙe ƙirƙirar kwafin madadin.
• Shirye don amfani da masana'antu (wanda aka riga aka yi amfani dashi a cikin ababen more rayuwa na JD, Meituan da Xiaohongshu).
• Ikon canza tsarin ajiyar bayanai da sabunta shi ba tare da tsayawa ko shafar ayyukan da ke gudana ba.
• Tallafin TTL don iyakance rayuwar bayanai.
• Umarni don sarrafa saituna da rundunan ajiya.
• Kayan aiki don sarrafa aiki da tsara jadawalin ƙaddamar da ayyukan (na ayyukan da ake tallafawa a halin yanzu sune COMPACT da FLUSH).
• Ayyukan gano cikakkiyar hanya da mafi guntu hanya tsakanin madaidaitan da aka bayar.
• OLAP dubawa don haɗawa tare da dandamali na nazari na ɓangare na uku.
• Abubuwan amfani don shigo da bayanai daga fayilolin CSV ko daga Spark.
• Fitar da awo don saka idanu ta amfani da Prometheus da Grafana.
• Yanar gizon yanar gizo
  Nebula Graph Studio don ganin ayyukan jadawali, kewayawa jadawali, tsara ma'ajiyar bayanai da tsare-tsaren lodi.
  

source: budenet.ru