Video: Sharded pawg yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Ib MongoDB sharded pawg muaj cov nram qab no Cheebtsam: shard: Txhua shard muaj ib tug subset ntawm cov sharded cov ntaub ntawv. Raws li MongoDB 3.6, shards yuav tsum tau muab xa mus raws li cov txheej txheem replica. mongos: Lub mongos ua raws li cov lus nug router, muab kev sib txuas ntawm cov neeg siv khoom thiab cov sharded pawg.
Tom qab ntawd, ib tug kuj yuav nug, Sharded yog dab tsi?
Sharding yog ib hom database partitioning uas cais cov databases loj heev rau hauv me me, sai dua, yooj yim tswj qhov chaw hu ua cov ntaub ntawv shards. Lo lus shard txhais tau tias ib feem me me ntawm tag nrho.
Ib yam li ntawd, Sharded collection yog dab tsi? Sharding yog ib lub tswv yim hauv MongoDB, uas faib cov ntaub ntawv loj rau hauv cov ntaub ntawv me me hla ntau yam MongoDB. Cov sau uas tuaj yeem loj hauv qhov loj yog qhov sib cais ntawm ntau yam kev sau los yog Shards raws li lawv hu ua. Logically tag nrho cov shards ua hauj lwm raws li ib tug sau.
Ntawm no, Sharded pawg hauv MongoDB yog dab tsi?
A mongodb pawg yog lo lus feem ntau siv rau sharded pawg hauv mongodb . Lub hom phiaj tseem ceeb ntawm a sharded mongodb yog: Scale nyeem thiab sau nrog ntau lub pob. Txhua lub node tsis tuav tag nrho cov ntaub ntawv yog li koj tuaj yeem cais cov ntaub ntawv raws tag nrho cov nodes ntawm shard.
Vim li cas Sharding siv?
Sharding yog ib txoj kev ntawm kev faib thiab khaws cia ib qho kev sib tham hauv cov ntaub ntawv hauv ntau lub databases. Los ntawm kev faib cov ntaub ntawv ntawm ntau lub tshuab, ib pawg ntawm cov txheej txheem database tuaj yeem khaws cov ntaub ntawv loj dua thiab tuav cov kev thov ntxiv. Sharding Nws yog ib qho tsim nyog yog tias cov ntaub ntawv loj dhau los khaws cia rau hauv ib qho database.
Pom zoo:
Dab tsi yog qhov sib txawv ntawm pab pawg cov ntaub ntawv thiab cov ntaub ntawv tsis yog pawg?
Ob leeg yog cov ntaub ntawv muaj txiaj ntsig ntawm cov ntaub ntawv tab sis qhov sib txawv ntawm lawv yog cov ntaub ntawv tsis muaj ntaub ntawv yog rawdata. Qhov no txhais tau hais tias nws nyuam qhuav tau sau tab sis tsis txheeb rau hauv ib pawg lossis cov chav kawm. Ntawm qhov tod tes, groupeddata yog cov ntaub ntawv uas tau teeb tsa ua pawg los ntawm cov ntaub ntawv nyoos
Dab tsi yog qhov txawv ntawm cov pab pawg thiab cov pab pawg tawm?
Nyob rau hauv sociology thiab kev puas siab puas ntsws, ib pab pawg neeg yog ib pawg neeg sib raug zoo uas tus neeg puas siab puas ntsws qhia tias yog ib tug tswv cuab. Los ntawm qhov sib txawv, ib pab pawg tawm yog ib pawg neeg sib raug zoo uas ib tus neeg tsis txheeb xyuas
Dab tsi yog qhov txawv ntawm ib pawg kev ruaj ntseg thiab pab pawg faib khoom?
Pawg Kev Ruaj Ntseg-Cov pab pawg siv los tiv thaiv kev nkag mus rau hauv kev siv network los ntawm kev tso cai; lawv kuj tuaj yeem siv los xa email. Distribution Groups-Cov pab pawg uas tsuas yog siv tau los xa email xwb; lawv muaj kev koom tes ruaj khov uas tsis tuaj yeem siv los nkag mus rau cov peev txheej network
Pawg pawg yog dab tsi?
Hom Quorum Modes Quorum Mode Description Node Feem Ntau • Tsuas yog cov nodes hauv pawg muaj kev pov npav • Pawg tswj hwm thaum ntau tshaj ib nrab ntawm cov nodes nyob online Node thiab Disk Feem ntau • Cov nodes hauv pawg thiab cov pov thawj disk muaj pov npav • Pawg yog khaws cia thaum ntau tshaj li ib nrab ntawm cov pov npav online
Lub luag haujlwm ntawm pawg pawg yog dab tsi?
Ua haujlwm nrog Lub Luag Haujlwm hauv Failover Cluster Manager. Txhua lub tshuab virtual muaj ntau tau suav tias yog lub luag haujlwm hauv Failover Clustering terminology. Lub luag haujlwm suav nrog cov khoom tiv thaiv nws tus kheej nrog rau cov txheej txheem siv los ntawm Failover Clustering rau kev teeb tsa thiab lub xeev cov ntaub ntawv hais txog cov khoom tiv thaiv