Not Following POSIX ACLs

[Sean Elble]

Hi,

I ran into an odd issue this morning that surprised me, in that "which" 
doesn't seem to respect or follow the POSIX ACL bit.  For example:

address@hidden ~]# cd /usr/hdp/current/hive-client/bin
address@hidden bin]# setfacl -m u:hive:rx hive
address@hidden bin]# ll hive
-rwxr-x---+ 1 root root  578 Sep 23 22:06 hive
address@hidden bin]# su - hive
-bash-4.1$ which hive
/usr/bin/which: no hive in 
(/usr/lib64/qt-3.3/bin:/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/sbin)
-bash-4.1$ hive
16/02/08 10:43:53 WARN conf.HiveConf: HiveConf of name 
hive.optimize.mapjoin.mapreduce does not exist

In short, I removed the all other permissions from the file, allowed the 
"hive" user to read and execute "/usr/hdp/current/hive-client/bin/hive", 
and though the "hive" user can indeed execute the binary (as allowed by 
POSIX ACL), "which" does not recognize it as an executable file for this 
user.

Somewhat surprisingly, I haven't found anyone else reporting this issue 
in searching around a bit, but perhaps my Google-fu is failing me on 
what is very much a Monday morning.

Can anyone shed some light on this?  Is this something that is supported 
or may be supported at some point?  Please do CC me on replies, as I am 
not subscribed to this list.

Thanks,

Sean Elble