| 1 | | = HDFS權限管理用戶 = |
| 2 | | |
| 3 | | * hdfs的權限有owner, group, other三種 |
| 4 | | * 而用戶的身份取決於client上的使用者 （用 whoami），群組為（bash -c groups） |
| 5 | | * 相關的操作： |
| 6 | | {{{ |
| 7 | | $ bin/hadoop dfs -mkdir own |
| 8 | | $ bin/hadoop dfs -chmod -R 755 own |
| 9 | | $ bin/hadoop dfs -chgrp -R waue own |
| 10 | | $ bin/hadoop dfs -chown -R waue own |
| 11 | | $ bin/hadoop dfs -lsr own |
| 12 | | }}} |
| 13 | | * conf/hadoop-site.xml 可用參數： |
| 14 | | {{{ |
| 15 | | #!php |
| 16 | | dfs.permissions = true |
| 17 | | dfs.web.ugi = webuser,webgroup |
| 18 | | dfs.permissions.supergroup = supergroup |
| 19 | | dfs.upgrade.permission = 777 |
| 20 | | dfs.umask = 022 |
| 21 | | }}} |
| 22 | | |
