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 | | |