Andy Isaacson created HDFS-4139: ----------------------------------- Summary: fuse-dfs RO mode still allows file truncation Key: HDFS-4139 URL: https://issues.apache.org/jira/browse/HDFS-4139 Project: Hadoop HDFS Issue Type: Bug Components: fuse-dfs Affects Versions: 2.0.2-alpha Reporter: Andy Isaacson
Mounting a fuse-dfs in readonly mode with "-oro" still allows the user to truncate files. {noformat} $ grep fuse /etc/fstab hadoop-fuse-dfs#dfs://ubu-cdh-0.local /export/hdfs fuse noauto,ro 0 0 $ sudo mount /export/hdfs $ hdfs dfs -ls /tmp ... -rw-r--r-- 3 ubuntu hadoop 4 2012-11-01 14:18 /tmp/blah.txt $ echo foo > /export/hdfs/tmp/blah.txt -bash: /export/hdfs/tmp/blah.txt: Permission denied $ hdfs dfs -ls /tmp ... -rw-r--r-- 3 ubuntu hadoop 0 2012-11-01 14:28 /tmp/blah.txt $ ps ax | grep dfs ... 13639 ? Ssl 0:02 /usr/lib/hadoop/bin/fuse_dfs dfs://ubu-cdh-0.local /export/hdfs -o ro,dev,suid {noformat} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira