Re: Running not as hadoop user
Thank you, Todd and Adarsh! Mark On Thu, Dec 9, 2010 at 12:50 AM, Adarsh Sharma adarsh.sha...@orkash.comwrote: Todd Lipcon wrote: The user who started the NN has superuser privileges on HDFS. You can also configure a supergroup by setting dfs.permissions.supergroup (default supergroup) -Todd On Wed, Dec 8, 2010 at 9:34 PM, Mark Kerzner markkerz...@gmail.com wrote: Hi, hadoop user has some advantages for running Hadoop. For example, if HDFS is mounted as a local file system, then only user hadoop has write/delete permissions. Can this privilege be given to another user? In other words, is this hadoop user hard-coded, or can another be used in its stead? Thank you, Mark You may also set dfs.permissions = false and grant seperate groups to access HDFS through properties in hdfs.sites.xml --Adarsh
Running not as hadoop user
Hi, hadoop user has some advantages for running Hadoop. For example, if HDFS is mounted as a local file system, then only user hadoop has write/delete permissions. Can this privilege be given to another user? In other words, is this hadoop user hard-coded, or can another be used in its stead? Thank you, Mark
Re: Running not as hadoop user
The user who started the NN has superuser privileges on HDFS. You can also configure a supergroup by setting dfs.permissions.supergroup (default supergroup) -Todd On Wed, Dec 8, 2010 at 9:34 PM, Mark Kerzner markkerz...@gmail.com wrote: Hi, hadoop user has some advantages for running Hadoop. For example, if HDFS is mounted as a local file system, then only user hadoop has write/delete permissions. Can this privilege be given to another user? In other words, is this hadoop user hard-coded, or can another be used in its stead? Thank you, Mark -- Todd Lipcon Software Engineer, Cloudera
Re: Running not as hadoop user
Todd Lipcon wrote: The user who started the NN has superuser privileges on HDFS. You can also configure a supergroup by setting dfs.permissions.supergroup (default supergroup) -Todd On Wed, Dec 8, 2010 at 9:34 PM, Mark Kerzner markkerz...@gmail.com wrote: Hi, hadoop user has some advantages for running Hadoop. For example, if HDFS is mounted as a local file system, then only user hadoop has write/delete permissions. Can this privilege be given to another user? In other words, is this hadoop user hard-coded, or can another be used in its stead? Thank you, Mark You may also set dfs.permissions = false and grant seperate groups to access HDFS through properties in hdfs.sites.xml --Adarsh
