| 341 | |
| 342 | = HDFS權限管理用戶 = |
| 343 | |
| 344 | * hdfs的權限有owner, group, other三種 |
| 345 | * 而用戶的身份取決於client上的使用者 (用 whoami),群組為(bash -c groups) |
| 346 | * 相關的操作: |
| 347 | {{{ |
| 348 | $ bin/hadoop dfs -mkdir own |
| 349 | $ bin/hadoop dfs -chmod -R 755 own |
| 350 | $ bin/hadoop dfs -chgrp -R waue own |
| 351 | $ bin/hadoop dfs -chown -R waue own |
| 352 | $ bin/hadoop dfs -lsr own |
| 353 | }}} |
| 354 | * conf/hadoop-site.xml 可用參數: |
| 355 | {{{ |
| 356 | #!php |
| 357 | dfs.permissions = true |
| 358 | dfs.web.ugi = webuser,webgroup |
| 359 | dfs.permissions.supergroup = supergroup |
| 360 | dfs.upgrade.permission = 777 |
| 361 | dfs.umask = 022 |
| 362 | }}} |