The issue here is the way we fetch ACLs on a directory.
If 'directory', we first fetch DEFAULT_ACL and then fetch ACCESS_ACL.
But there seems like a bug in the code. If there is no default ACL set
on a directory, we seem to be bailing out and skip fetching ACCESS_ACL.
Here is the code snippet -->
324 /* acl3_default_getacl_cbk: fetch and decode the ACL set in the
325 * POSIX_ACL_DEFAULT_XATTR xattr.
326 *
327 * The POSIX_ACL_DEFAULT_XATTR xattr is only set on directories, not
on files.
328 *
329 * When done with POSIX_ACL_DEFAULT_XATTR, we also need to get and
decode the
330 * ACL that can be set in POSIX_ACL_DEFAULT_XATTR.
331 */
332 int
333 acl3_default_getacl_cbk (call_frame_t *frame, void *cookie, xlator_t
*this,
334 int32_t op_ret, int32_t op_errno, dict_t *dict,
335 dict_t *xdata)
336 {
........
.......
........
353 if ((op_ret < 0) && (op_errno != ENODATA && op_errno !=
ENOATTR)) {
354 stat = nfs3_cbk_errno_status (op_ret, op_errno);
355 goto err;
356 } else if (!dict) {
357 /* no ACL has been set */
358 stat = NFS3_OK;
359 goto err;
360 }
......
......
......
385 ret = nfs_getxattr (cs->nfsx, cs->vol, &nfu, &cs->resolvedloc,
386 POSIX_ACL_ACCESS_XATTR, NULL,
acl3_getacl_cbk, cs);
387 if (ret < 0) {
388 stat = nfs3_errno_to_nfsstat3 (-ret);
389 goto err;
390 }
391
392 return 0;
393
394 err:
395 if (getaclreply)
396 getaclreply->status = stat;
397 acl3_getacl_reply (cs->req, getaclreply);
398 nfs3_call_state_wipe (cs);
399 return 0;
400 }
<----
To verify this, along with ACCESS ACL, please set an inherit/default ACL
on that directory and check getfacl output.
Thanks,
Soumya
On 07/31/2015 05:51 PM, Soumya Koduri wrote:
On 07/31/2015 05:33 PM, Jüri Palis wrote:
Playing around with my GlusterFS test setup I discovered following
anomaly
On volume with low access traffic, ACLs on directories (managed over
NFS) sort of work, I can add new ACL entry to directory and when I
execute getfacl right after setting ACL, it displays correct settings.
However this data is never replicated to another GlusterFS node
hosting this particular volume and ACL disappears few minutes after
setting it.
Same operation when performed on file works correctly, ACL entry set
to particular file on one GlusterFS NFS server is replicated to
participating node almost immediately.
So, it would be interesting to see if someone here can replicate this
anomaly.
J.
I could reproduce this similar issue - After remounting the volume, the
directory ACLs are not displayed. I shall look further into this and
update the findings.
# getfacl /mnt/dir5
getfacl: Removing leading '/' from absolute path names
# file: mnt/dir5
# owner: root
# group: root
user::rwx
group::r-x
group:tmpgroup:r-x
mask::r-x
other::r-x
#
# umount /mnt
# mount -t nfs 10.70.xx.xx:/vol0 /mnt
# getfacl /mnt/dir5
getfacl: Removing leading '/' from absolute path names
# file: mnt/dir5
# owner: root
# group: root
user::rwx
group::r-x
other::r-x
#
Though these ACLs are displayed when done getfacl using brick-path
directly.
Thanks,
Soumya
On 31 Jul 2015, at 09:35, Soumya Koduri <skoduri@xxxxxxxxxx> wrote:
I have tested it using the gluster-NFS server with GlusterFS version
3.7.* running on a RHEL7 machine and RHEL 6.7 as NFS client. ACLs
with named groups got properly set on the directory.
Could you please provide us the packet trace (better taken on the
server side so that we can check Gluster operations too) while doing
setfacl and getfacl ?
Thanks,
Soumya
On 07/30/2015 07:38 PM, Jüri Palis wrote:
Hi,
Mounted GlusterFS volume with native mount and ACL’s are working as
expected, mounted same volume with nfs protocol and the result is
exactly the same as I described below. ACL set to files work and ACL
set
to directory do not work as expected. Ohh, I’m out of ideas :(
J.
On 30 Jul 2015, at 16:38, Jüri Palis <jyri.palis@xxxxxxxxx
<mailto:jyri.palis@xxxxxxxxx>> wrote:
[2015-07-30 13:16:01.002296] T [rpcsvc.c:316:rpcsvc_program_actor]
0-rpc-service: Actor found: ACL3 - SETACL for 10.1.1.32:742
[2015-07-30 13:16:01.002325] T [MSGID: 0] [acl3.c:672:acl3svc_setacl]
0-nfs-ACL: FH to Volume: acltest
[2015-07-30 13:16:01.004287] T [rpcsvc.c:1319:rpcsvc_submit_generic]
0-rpc-service: submitted reply for rpc-message (XID: 0x16185ddc,
Program: ACL3, ProgVers: 3, Proc: 2) to rpc-transport
(socket.nfs-server)
[2015-07-30 13:16:22.823894] T [rpcsvc.c:316:rpcsvc_program_actor]
0-rpc-service: Actor found: ACL3 - GETACL for 10.1.1.32:742
[2015-07-30 13:16:22.823900] T [MSGID: 0] [acl3.c:532:acl3svc_getacl]
0-nfs-ACL: FH to Volume: acltest
[2015-07-30 13:16:22.824218] D [MSGID: 0]
[client-rpc-fops.c:1156:client3_3_getxattr_cbk] 0-acltest-client-1:
remote operation failed: No data available. Path:
<gfid:12f02b4f-a181-47d4-9b5b-69e889483570>
(12f02b4f-a181-47d4-9b5b-69e889483570). Key: system.posix_acl_default
[2015-07-30 13:16:22.825675] D [MSGID: 0]
[client-rpc-fops.c:1156:client3_3_getxattr_cbk] 0-acltest-client-0:
remote operation failed: No data available. Path:
<gfid:12f02b4f-a181-47d4-9b5b-69e889483570>
(12f02b4f-a181-47d4-9b5b-69e889483570). Key: system.posix_acl_default
[2015-07-30 13:16:22.825713] T [rpcsvc.c:1319:rpcsvc_submit_generic]
0-rpc-service: submitted reply for rpc-message (XID: 0x63815edc,
Program: ACL3, ProgVers: 3, Proc: 1) to rpc-transport
(socket.nfs-server)
[2015-07-30 13:16:22.828243] T [rpcsvc.c:316:rpcsvc_program_actor]
0-rpc-service: Actor found: ACL3 - SETACL for 10.1.1.32:742
[2015-07-30 13:16:22.828266] T [MSGID: 0] [acl3.c:672:acl3svc_setacl]
0-nfs-ACL: FH to Volume: acltest
[2015-07-30 13:16:22.829931] T [rpcsvc.c:1319:rpcsvc_submit_generic]
0-rpc-service: submitted reply for rpc-message (XID: 0x75815edc,
Program: ACL3, ProgVers: 3, Proc: 2) to rpc-transport
(socket.nfs-server)
Enabled trace for few moments and tried to make any sense of it by
searching for lines containing ‘acl’ according to this everything
kind of works except lines which state that “remote operation failed”
GlusterFS failed to replicate or commit acl changes?
On 07/30/2015 06:22 PM, Jüri Palis wrote:
Hi,
Thanks Niels, your hints about those two options did the trick
although
I had to enable both of them and I had to add nscd (sssd provides
user
identities) to this mix as well.
Now back to the problem with ACL’s. Is your test setup something
like
this: GlusterFS 3.7.2 replicated volume on Centos/RHEL 7 and
client or
clients accessing GlusterFS volumes by NFS protocol, correct?
As Jiffin had suggested, did you try the same command on GlusterFS
Native mount?
Log levels can be increased to TRACE/DEBUG mode using the command
'gluster vol set <volname> diagnostics.client-log-level
[TRACE,DEBUG]'
Also please capture a packet trace on the server-side using the
command - 'tcpdump -i any -s 0 -w /var/tmp/nfs-acl.pcap tcp and not
port 22'
Verify the packets sent by Gluster-NFS process to the brick process
to set the ACL.
Thanks,
Soumya
# gluster volume info acltest
Volume Name: acltest
Type: Replicate
Volume ID: 9e0de3f5-45ba-4612-a4f1-16bc5d1eb985
Status: Started
Number of Bricks: 1 x 2 = 2
Transport-type: tcp
Bricks:
Brick1: vfs-node-01:/data/gfs/acltest/brick0/brick
Brick2: vfs-node-02:/data/gfs/acltest/brick0/brick
Options Reconfigured:
server.manage-gids: on
nfs.server-aux-gids: on
performance.readdir-ahead: on
server.event-threads: 32
performance.cache-size: 2GB
storage.linux-aio: on
nfs.disable: off
performance.write-behind-window-size: 1GB
performance.nfs.io-cache: on
performance.nfs.write-behind-window-size: 250MB
performance.nfs.stat-prefetch: on
performance.nfs.read-ahead: on
performance.nfs.io-threads: on
cluster.readdir-optimize: on
network.remote-dio: on
auth.allow: 10.1.1.32,10.1.1.42
diagnostics.latency-measurement: on
diagnostics.count-fop-hits: on
nfs.rpc-auth-allow: 10.1.1.32,10.1.1.42
nfs.trusted-sync: on
Maybe there is a way to increase verbosity of nfs server which could
help me to trace this problem. I did not find any good hints for
increasing verbosity of nfs server in documentation.
Regards,
J.
On 30 Jul 2015, at 10:09, Jiffin Tony Thottan <jthottan@xxxxxxxxxx
<mailto:jthottan@xxxxxxxxxx>
<mailto:jthottan@xxxxxxxxxx>> wrote:
On 29/07/15 20:14, Niels de Vos wrote:
On Wed, Jul 29, 2015 at 05:22:31PM +0300, Jüri Palis wrote:
Hi,
Another issue with NFS and sec=sys mode. As we all know there
is a
limit of 15 security ids involved when running NFS in sec=sys
mode.
This limit makes effective and granular usage of ACL assigned
through
groups almost unusable. One way to overcome this limit is to use
kerberised NFS but GlusterFS does not natively support this
access
mode . Another option, at least according to one email thread,
states
that GlusterFS has an option server.manage-gids which should
mitigate
this limit and raise it to 90 something. Is this the option,
which
can be used for increasing sec=sys limit. Sadly documentation
does not
have clear description about this option, what exactly this
option
does and how it should be used.
server.manage-gids is an option to resolve the groups of a uid
in the
brick process. You probably need to also use the
nfs.server-aux-gids
option so that the NFS-server resolves the gids of the uid
accessing the
NFS-server.
The nfs.server-aux-gids option is used to overcome the
AUTH_SYS/AUTH_UNIX limit of (I thought 32?) groups.
The server.manage-gids option is used to overcome the GlusterFS
protocol
limit of ~93 groups.
If your users do not belong to 90+ groups, you would not need to
set the
server.manage-gids option, and nfs.server-aux-gids might be
sufficient.
HTH,
Niels
J.
On 29 Jul 2015, at 16:16, Jiffin Tony Thottan
<jthottan@xxxxxxxxxx <mailto:jthottan@xxxxxxxxxx>
<mailto:jthottan@xxxxxxxxxx>> wrote:
On 29/07/15 18:04, Jüri Palis wrote:
Hi,
setfacl for dir on local filesystem:
1. set acl setfacl -m g:x_meie_sec-test02:rx test
2. get acl
# getfacl test
user::rwx
group::r-x
group:x_meie_sec-test02:r-x
mask::r-x
other::r-x
setfacl for dir on GlusterFS volume which is NFS mounted to
client
system
1. same command is used for setting ACE, no error is
returned by
that command
2. get acl
#getfacl test
user::rwx
group::r-x
other::---
If I use ordinary file as a target on GlusterFS like this
setfacl -m g:x_meie_sec-test02:rw dummy
then ACE entry is set for file dummy stored on GlusterFS
# getfacl dummy
user::rw-
group::r--
group:x_meie_sec-test02:rw-
mask::rw-
other::—
So, as you can see setting ACLs for files works but does not
work
for directories.
This all is happening on CentOS7, running GlusterFS 3.7.2
Hi Jyri,
It seems there are couple of issues ,
1.) when u set a named group acl for file/directory, it
clears the
permission of others too.
2.) named group acl is not working properly for directories ,
I will try the same on my setup and share my findings.
--
Jiffin
In my setup (glusterfs 3.7.2 and RHEL 7.1 client) it worked
properly
I followed the same steps mentioned by you.
#cd /mnt
# mkdir dir
# touch file
# getfacl file
# file: file
# owner: root
# group: root
user::rw-
group::r--
other::r--
# getfacl dir
# file: dir
# owner: root
# group: root
user::rwx
group::r-x
other::r-x
# setfacl -m g:gluster:rw file
# getfacl file
# file: file
# owner: root
# group: root
user::rw-
group::r--
group:gluster:rw-
mask::rw-
other::r--
setfacl -m g:gluster:r-x dir
getfacl dir
# file: dir
# owner: root
# group: root
user::rwx
group::r-x
group:gluster:r-x
mask::r-x
other::r-x
So can u share the following information from the server.
1.) gluster vol info
2.) nfs.log (nfs-server log)
3.) brick logs
and also can u try the same on fuse mount(gluster native mount).
--
Jiffin
J.
On 29 Jul 2015, at 15:16, Jiffin Thottan <jthottan@xxxxxxxxxx
<mailto:jthottan@xxxxxxxxxx>
<mailto:jthottan@xxxxxxxxxx>> wrote:
----- Original Message -----
From: "Jüri Palis" <jyri.palis@xxxxxxxxx
<mailto:jyri.palis@xxxxxxxxx>
<mailto:jyri.palis@xxxxxxxxx>>
To:gluster-users@xxxxxxxxxxx
<mailto:gluster-users@xxxxxxxxxxx><mailto:gluster-users@xxxxxxxxxxx>
Sent: Wednesday, July 29, 2015 4:19:20 PM
Subject: GlusterFS 3.7.2 and ACL
Hi
Setup:
GFS 3.7.2, NFS is used for host access
Problem:
POSIX ACL work correctly when ACLs are applied to files but do
not work when ACLs are applied to directories on GFS volumes.
How can I debug this issue more deeply?
Can you please explain the issue with more details, i.e what
exactly not working properly , is it setting acl or any
functionality issue, in which client?
__
Jiffin
Regards,
Jyri
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