Cov ntaub ntawv pov tseg RDB yog dab tsi?

Video: Cov ntaub ntawv pov tseg RDB yog dab tsi?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

pov tseg . rdb file yog lub neej ntawd ntaub ntawv nyob rau hauv uas redis yuav txuag cov ntaub ntawv rau disk yog tias koj pab rdb ib raws persistence nyob rau hauv lub redis. conf ntaub ntawv . Qhov chaw ntawm pov tseg . rdb ib tuaj yeem tau txais los ntawm ob qho tib si. nyeem tus nqi "dir" hauv redis.conf ntaub ntawv pom los ntawm qhov chaw ntawm redis.conf.

Ib yam li ntawd, tib neeg nug, qhov chaw pov tseg RDB nyob qhov twg?

qhov chaw ntawm pov tseg . rdb ib yog ntawm /usr/local/etc/ pov tseg . rdb ib . qhov chaw ntawm redis.

Ib yam li ntawd, Redis config file nyob qhov twg? Cov Redis kev teeb tsa ntaub ntawv nyob rau ntawm installdir/ redis /etc/ redis . conf.

Tsis tas li ntawd kom paub yog, qhov kev teeb tsa twg teev qhia cov ntaub ntawv uas RDB snapshot pov tseg tau khaws cia rau _?

Los ntawm lub neej ntawd Redis txuag snapshots ntawm cov ntaub ntawv ntawm disk, hauv binary ntaub ntawv hu ua pov tseg . rdb ib . Koj ua tau teeb tsa Redis kom muaj nws cawm dataset txhua N vib nas this yog tias muaj tsawg kawg M hloov hauv dataset, lossis koj tuaj yeem hu rau tus kheej Txuag los yog BGSAV cov lus txib. Lub tswv yim no hu ua snapshotting.

Dab tsi yog AOF hauv Redis?

AOF stands rau Append Only File. Nws yog qhov hloov-log style persistent hom. RDB yog rau Redis Cov ntaub ntawv database. Nws yog lub snapshot style persistence hom.

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

Puas muaj ib txoj hauv kev pov tseg qhov kev kuaj xyuas los ntawm txoj kev uas tsis muaj cov lus pov tseg?

9 Teb. Koj tuaj yeem pov cov kev txwv tsis raug txheeb xyuas yam tsis tas yuav tshaj tawm lawv yog tias koj xav tau tiag tiag. Unchecked kev zam txuas ntxiv RuntimeException. Throwables uas txuas ntxiv yuam kev tseem tsis tau txheeb xyuas, tab sis tsuas yog yuav tsum tau siv rau cov teeb meem loj tiag tiag (xws li invalid bytecode)

Vim li cas kem taw qhia cov ntaub ntawv khaws cia ua cov ntaub ntawv nkag ntawm disks sai dua li kab qhia cov ntaub ntawv khaws cia?

Kem oriented databases (aka columnar databases) yog qhov tsim nyog rau kev ntsuas kev ua haujlwm ntau dua vim tias cov ntaub ntawv hom ntawv (kem hom) qiv nws tus kheej kom nrawm dua cov lus nug ua - scans, aggregation thiab lwm yam. Ntawm qhov tod tes, kab oriented databases khaws ib kab (thiab tag nrho nws. kab) contiguously

Dab tsi yog cov teeb meem ntawm kev tswj cov ntaub ntawv hauv cov ntaub ntawv ib txwm muaj?

Nyob rau tib lub sijhawm, qhov kev tswj hwm cov ntaub ntawv ib puag ncig tsim teeb meem xws li cov ntaub ntawv rov ua dua thiab tsis sib xws, cov kev pab cuam-cov ntaub ntawv dependence, inflexibility, tsis muaj kev ruaj ntseg, thiab tsis muaj cov ntaub ntawv sib qhia thiab muaj