Cov txheej txheem:
Video: Kuv yuav tso cai rau HDFS li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hadoop ua haujlwm ntawm cov ntaub ntawv system. Hloov cov tso cai ntawm ib qho ntawm cov Hadoop folder koj siv tau: haoop ua fs -chmod < tso cai >. Xav txog koj xav tau muab tswv as all tso cai , pab pawg thiab lwm yam tsuas yog nyeem thiab ua tiav.
Tom qab ntawd, kuv yuav tso cai recursive li cas hauv HDFS?
Hloov HDFS Cov ntaub ntawv Tso cai Koj yuav tsum yog tus neeg siv super lossis tus tswv ntawm cov ntaub ntawv lossis cov npe hloov nws kev tso cai . Nrog chgrp, chmod thiab chown commands koj tuaj yeem qhia qhov kev xaiv -R rau ua recursive hloov los ntawm cov qauv directory koj teev.
Ib tug kuj nug, chmod 755 txhais li cas? chmod +x ntxiv qhov kev tso cai rau txhua tus neeg siv rau cov kev tso cai uas twb muaj lawm. xwm 755 teev cov 755 tso cai rau ib cov ntaub ntawv. 755 lus kev tso cai tag nrho rau tus tswv thiab nyeem thiab ua tiav kev tso cai rau lwm tus.
Hauv qhov no, kuv yuav ntxiv tus neeg siv rau HDFS supergroup li cas?
3 Teb
- sudo addgroup testgroup.
- Tom qab ntawd tsim cov neeg siv ntau npaum li koj xav tau.
- Tom qab ntawd ntxiv cov neeg siv no mus rau pawg xeem.
- Tom qab ntawd kho cov cuab yeej hdfs-site.xml thiab ntxiv cov cuab yeej no dfs.permissions.superusergroup, tus nqi yuav yog koj pab pawg npe.
Dab tsi yog cov qauv tso cai rau cov ntaub ntawv thiab cov npe hauv HDFS?
Saum toj no hais kev tso cai ua hauj lwm txawv rau cov ntaub ntawv thiab cov npe . nyeem (r) tso cai - Kev nyeem a ntaub ntawv . sau (w) tso cai - Sau ntawv a ntaub ntawv.
Rau cov directory.
- Qhov kev tso cai r teev cov ntsiab lus ntawm cov npe tshwj xeeb.
- Qhov kev tso cai w tsim lossis tshem tawm cov npe.
- X tso cai nkag mus rau cov npe menyuam yaus.
Pom zoo:
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