[Samba] settings ACLs is slooooow

[Klaus Hartnegg]

Hi,

I need to set ACLs on a samba server, and are using icacls in Win7.

It takes several hours to edit an ACL with inheritance, affecting a 
directory tree with 300,000 files. Server cpu > 70%, client cpu < 20%.
Is there a way how I can speed this up?

Using "setfattr -R" in Linux does it in approximately 2 minutes, but I 
want real Windows ACLs.

There are 300.000 files in a directory tree. Client and Server are 
Core2duo with 3 GHz and 4 GB RAM. This is Samba 4.1.6 running in Ubuntu 
14.04 as NT4-PDC with "vfs objects = acl_xattr" and "map acl inherit = 
true". Filesystem ext4 with options rw,noexec,noatime,acl,user_xattr.

I could run it over night, but I will likely have to add ACLs later for 
one of the larger subdirectories.

thanks,
Klaus


> top - 17:06:55 up 7 days,  5:45,  2 users,  load average: 0,81, 0,79, 0,75
> Aufgaben: 102 total,   3 running,  99 sleeping,   0 stopped,   0 zombie
> %Cpu(s): 14,0 be, 23,4 sy,  0,0 ni, 61,9 un,  0,5 wa,  0,0 hi,  0,2 si,  0,0 st
> KiB Mem:   3047384 total,  1010856 used,  2036528 free,   582592 buffers
> KiB Swap:  9764860 total,    15552 used,  9749308 free.   154744 cached Mem
>
>   PID BENUTZER  PR  NI    VIRT    RES    SHR S  %CPU %MEM     TIME+ COMMAND
>  4274 root      20   0   39976  17428  14056 S  72,9  0,6 124:21.74 smbd