disable 'dfs.permissions' via CM4.5 (CDH4.3) not working

Did you restart HDFS after that?

If you've already done that, then could you go to: CM -> HDFS -> NN ->
Processes -> "Show" config/environment for NN, and attach the
hdfs-site.xml?

Cheers,
bc

Hi Wong:

Just out of my curiosity, I tried disable HDFS permissions in our testing
cluster, by set "Service->Service hdfs1->Configuration->Service-Wide->check
HDFS Permissions" to false. Now in "CM -> HDFS -> NN ->
Processes -> "Show" config/environment for NN", I can see the snippet:

<property>
     <name>dfs.permissions</name>
     <value>false</value>
   </property>

is in the hdfs-site.xml, however in my namenode server,
/etc/hadoop/conf/hdfs-site.xml, the above snippet is not there. Even I
did a "Deploy Client Configuration", I do have all my nodes set up as
Gateway.

/etc/hadoop/conf/hdfs-site.xml is only used by clients. Under CM
management, the daemons don't read that. So, dfs.permissions is
actually off. (You just think that it isn't.)

Cheers,
bc

I thought the "Deploy Client Configuration" would update and insert
"dfs.permissions"
into /etc/hadoop/conf/hdfs-site.xml file..

Anyway, good to know this.

Thanks Wong! :)

That's because "dfs.permissions" has nothing to do with clients.
Exposing it to clients would cause more confusion.