I-Micron Technology (inkampani egxile ekukhiqizweni kwe-DRAM kanye ne-flash memory) imemezele ukwethulwa kwenjini entsha ebizwa ngokuthi "i-HSE" (i-Heterogeneous-memory Storage Engine), eyathuthukiswa kucatshangelwa izici ezithile zokusetshenziswa kumayunithi e-SSD ngokusekelwe ku-NAND flash (X100, TLC, QLC 3D NAND) noma i-read-only memory (NVDIMM).
Injini yakhelwe njengomtapo wolwazi wokushumeka kwezinye izinhlelo zokusebenza futhi isekela ukucutshungulwa kwedatha enani elibalulekile . Ikhodi ye-HSE ibhalwe ngo-C futhi isatshalaliswa ngaphansi kwelayisensi ye-Apache 2.0.
Phakathi kwezinhlelo zokusebenza zenjini kukhona isitoreji sedatha esisezingeni eliphansi ku-NoSQL DBMS, isitoreji esichazwe yisoftware (SDS) njenge-Ceph kanye ne-Scality RING, amapulatifomu okucubungula inani elikhulu ledatha (i-Big Data), izinhlelo ze-high-performance computing (i-HPC), amadivayisi e-Internet of Things (i-IoT), kanye nezixazululo zezinhlelo zokufunda komshini.
I-HSE ayilungiselelwe ukusebenza okuphezulu kuphela kodwa futhi nokuqinisekisa ukuqina kwezinhlobo ezahlukene ze-SSD. Isivinini esikhulu sitholakala ngemodeli yokugcina ehlanganisiwe: idatha efanele kakhulu igcinwa ku-cache, okunciphisa inani lokufinyelela kuma-disk.
Njengesibonelo sokuhlanganisa i-injini entsha kumaphrojekthi wezinkampani zangaphandle, kwalungiswa uhlobo oluqondiswe kumadokhumenti lwe-MongoDB DBMS, eyahunyushelwa ukusebenzisa i-HSE.
Ngokobuchwepheshe, i-HSE isekelwe kumojuli eyengeziwe eyinhloko, i-mpool , esebenzisa isikhombimsebenzisi esikhethekile sokugcina izinto zama-drive aqinile, kucatshangelwa amakhono azo nezici zazo, ngaleyo ndlela kuvunyelwe izici zesivinini nokuqina ezihlukile. I-Mpool futhi iyintuthuko yomthombo ovulekile yi-Micron Technology, ekhishwe kanyekanye ne-HSE, kodwa ivelele njengephrojekthi yengqalasizinda ehlukile. I-Mpool ithatha ukusetshenziswa kwememori eqhubekayo kanye nesitoreji sendawo, kodwa okwamanje kusekelwa ama-SSD endabuko kuphela.
Ukuhlolwa kokusebenza okusebenzisa iphakheji ye-YCSB (Yahoo Cloud Serving Benchmark) kubonise ukwanda okukhulu kokusebenza lapho kusetshenziswa isitoreji esingu-2 TB ngokucubungula ibhulokhi yedatha engu-1 KB. Ukwanda okukhulu kokusebenza kubonwe esivivinyweni ngokusatshalaliswa okufanayo kwemisebenzi yokufunda nokubhala.
Isibonelo, i-MongoDB enenjini ye-HSE ibonakale ishesha cishe izikhathi ezingu-8 kunenguqulo enenjini ejwayelekile ye-WiredTiger, kanti injini ye-RocksDB DBMS iphumelele kakhulu kune-HSE izikhathi ezingaphezu kwezingu-6. Izinkomba zokusebenza ezinhle kakhulu nazo ziyabonakala ezivivinyweni, ezazinemisebenzi yokufunda engu-95% kanye nezinguquko noma izengezo ezingu-5% kuphela.
Olunye uvivinyo olwenziwe lubandakanya ukusebenza okufundwayo kuphela, kukhombisa inzuzo engaba ngama-40%. Ukwanda kokusinda kwama-SSDs ngesikhathi sokubhala kuqhathaniswa nesisombululo esise-RocksDB kulinganiselwa ukuthi kube izikhathi eziyi-7.
Izici ezibalulekile ze-HSE:
- Ukusekelwa kwama-opharetha ajwayelekile futhi athuthukile ukucubungula idatha ngefomethi yokhiye / yenani;
- Ukusekelwa okuphelele kokuthengiselana kanye namandla okuhlukanisa izingxenye zesitoreji ngokwakha izifinyezo (izifinyezo zingasetshenziswa futhi ukugcina amaqoqo ahlukile esitolo).
- Amandla wokusebenzisa izikhombisi ukudabula idatha kuzethulo ezisuselwe kuzithombe.
- Imodeli yedatha elungiselelwe izinhlobo zomthwalo ezihlanganisiwe endaweni yokugcina eyodwa.
- Izindlela eziguquguqukayo ukuphatha ukuthembeka kwesitoreji.
- Izikimu zokwenziwa kwedatha ezenziwe ngokwezifiso (ukusatshalaliswa ngezinhlobo ezahlukahlukene zememori ekhona endaweni yokugcina izinto).
- Umtapo wezincwadi one-C API engaxhunyaniswa ngamandla kunoma yiluphi uhlelo lokusebenza.
Amandla wokukala kuma-terabyte wedatha namakhulu ezigidigidi zokhiye kwisitoreji. - Ukusebenza okusebenzayo kwezinkulungwane zemisebenzi efanayo.
- Ukwanda okuphawulekayo komkhawulokudonsa, ukunciphisa ukubambezeleka, nokukhuphuka kokufunda / ukubhala kwezinhlobo ezahlukahlukene zomthwalo womsebenzi kuqhathaniswa nokusebenza okujwayelekile.
- Amandla wokusebenzisa amakilasi ahlukene ama-SSDs kusitoreji esifanayo ukukhulisa ukusebenza nokuqina.
Ungafinyelela ikhodi yenjini kusuka kusixhumanisi esilandelayo.