Luster Luhlelo lwefayela oluhanjiswa ngumthombo ovulekile, okujwayelekile esetshenziswa ngamaqoqo amakhulu. Igama ukuxubana kweLinux namaqoqo.
Le phrojekthi imizamo yokuhlinzeka ngohlelo lwefayela lwamaqoqo ezinkulungwane zamashumi ezinombolo zama-petabyte womthamo wesitoreji, ngaphandle kokuyekethisa isivinini noma ukuphepha, futhi iyatholakala ngaphansi kwe-GNU GPL.
Ama-Cluster File Systems angabasunguli, abathuthukisi kanye nabanakekeli beLuster ngeminikelo evela kwezinye izinkampani nabantu ngabanye.
Mayelana neLuster
Iningi lama-supercomputer ashesha kakhulu emhlabeni ngamaqoqo asebenzisa uhlelo lwefayela le-Luster njengesitoreji, njengamasistimu e-ORNL, PNNL, LLNL, ne-LANL.
Lolu hlelo lubheka ifayela ngalinye eligcinwe ohlelweni lwefayela le-Luster njengento. ILuster yethula wonke amaklayenti kuma-semantics ajwayelekile e-POSIX nokufinyelela okubhaliwe kokufunda nokubhala ngesikhathi esifanayo kwezinto ezihlanganyelwe. Uhlelo lwefayela leLuster lunamayunithi amane asebenzayo.
Lawa yi-Meta data server (MDS) yokugcina imethadatha; i-Object storage target (OST) ukusindisa idatha yangempela; i-Object storage server (OSS) yokuphatha ama-OST; amakhasimende ukufinyelela nokusebenzisa idatha.
Ama-OST amadivayisi wokuvimba. I-MDS, i-OSS, ne-OST ingahlala kunodi efanayo noma kuma-node ahlukene.
ILuster ayiphathi ngqo ama-OST, futhi idlulisela lo msebenzi kuma-OSS ukuqinisekisa ukwanda kwamaqoqo amakhulu kanye nabadlali abakhulu bekhompiyutha.
Ku-Massively Parallell Processor (MPP), amaprosesa angafinyelela ohlelweni lwefayela le-Luster ngokuqondisa kabusha izicelo zabo ze-I / O endaweni engeyona insizakalo yokuqalisa umsebenzi uma ihlelwe njengeklayenti leLuster.
Yize kuyindlela elula kunazo zonke, ngokuvamile inikeza ukusebenza okungalungile. Indlela enzima kakhulu yokunikeza ukusebenza okuhle kakhulu jikelele ukusebenzisa umtapo wezincwadi we-libluster.
ILibluster ilabhulali esezingeni lomsebenzisi evumela ama-processor ukuthi akhuphuke futhi asebenzise uhlelo lwefayela le-Luster njengeklayenti, edlula ekuqondisweni kabusha kunodi yesevisi.
Kusetshenziswa i-libluster, amaprosesa angafinyelela ohlelweni lwefayela le-Luster, noma ngabe i-node yesevisi lapho umsebenzi wethulwa khona ayilona iklayenti leLuster.
ILibluster inikeza indlela yokuhambisa imininingwane ngqo phakathi kwesikhala sohlelo lokusebenza kanye neLuster OSSs ngaphandle kwesidingo sokwenza ikhophi ledatha ngomgogodla osindayo, ngaleyo ndlela kufinyelelwe ukubambezeleka okuphansi, kanye nomkhawulokudonsa ophakeme ekufinyeleleni ngqo kwama-processor ohlelweni lwefayela le-Luster.
Uhlobo olusha lweLuster
Muva nje kukhishwe inguqulo entsha yeLuster 2.12 lapho eminye imisebenzi emisha futhi ngaphezu kwakho konke ukulungiswa kwamaphutha kungeziwe kokunye ukusatshalaliswa kwe-Linux okusetshenziselwa ama-supercomputer.
Izici ezintsha eziyinhloko zeLuster 2.12
Ngalokhu kukhululwa okusha kungezwa umsebenzi wokubeka isikhala izinkomba ezinkulu ezikhona ze-namespace esatshalalisiwe (I-DNE, i-Distributed Namespace) isuka entweni eyodwa yokugcina imethadatha (i-DTM, izinhloso zemethadatha) iye kwabaningi (ishiya izigaba ezahlukahlukene ze-DNE ngama-DTM ahlukile)
Isici esisha senza kube lula ukwethulwa kwama-MDTs amasha ama-FS akhona kanye nokulinganiswa kabusha kwamandla komthwalo ku-MDT.
Okwezinqolobane zemethadatha (MDT), imodi ye-Lazy Size «iyasetshenziswa, ekuvumela ukuthi ubuyise ngokushesha usayizi olinganiselwe esikhundleni sosayizi ngqo wamafayela lapho uskena ngqo i-MDT ngenjini yenqubomgomo ezimweni lapho isivinini sibaluleke kakhulu ngokunemba.
Okokulungiselela okune-interface eningi ye-LNet, kule nguqulo entsha yeLuster 2.12 umsebenzi we-«LNet Network Health» ungeziwe, esebenzisa inketho yokufinyelela kabusha i-RPC ngokusebenzisa esinye isikhombimsebenzisi senethiwekhi uma kwenzeka kwehluleka okokuqala kuthunyelwa isicelo.
Ngaphezu kwalokho, ukusekelwa kweseva kungezwe ngezinguqulo ze- I-RHEL 7.6 (3.10.0-957.el7) ne-SLES12 SP3 (4.4.162-94.69). Kungezwe ukusekelwa kwamakhasimende kwe-RHEL 7.6 (3.10.0-957.el7) engafakwanga, i-SLES12 SP3 (4.4.162-94.69) ne-Ubuntu 18.04 (4.15.0-32) kernels.