Changes between Version 31 and Version 32 of waue/2009/0402

Timestamp:

Apr 26, 2009, 1:13:25 AM (15 years ago)

Author:

waue

Comment:

--

waue/2009/0402

@@ -339 +339 @@
 2910628 24507806 143451003
 }}}
+
+= HDFS權限管理用戶 =
+
+ * hdfs的權限有owner, group, other三種
+ * 而用戶的身份取決於client上的使用者 （用 whoami），群組為（bash -c groups）
+ * 相關的操作：
+{{{
+$ bin/hadoop dfs -mkdir own
+$ bin/hadoop dfs -chmod -R 755 own
+$ bin/hadoop dfs -chgrp -R waue own
+$ bin/hadoop dfs -chown -R waue own
+$ bin/hadoop dfs -lsr own
+}}}
+ * conf/hadoop-site.xml 可用參數：
+{{{
+#!php
+dfs.permissions = true 
+dfs.web.ugi = webuser,webgroup
+dfs.permissions.supergroup = supergroup
+dfs.upgrade.permission = 777
+dfs.umask = 022
+}}}