On Fri, Nov 22, 2019 at 10:41 PM Strahil Nikolov <hunter86...@yahoo.com> wrote:
> On Thu, Nov 21, 2019 at 8:20 AM Sahina Bose <sab...@redhat.com> wrote: > > > > On Thu, Nov 21, 2019 at 6:03 AM Strahil Nikolov <hunter86...@yahoo.com> > wrote: > > Hi All, > > another clue in the logs : > [2019-11-21 00:29:50.536631] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-1: > remote operation failed. Path: > /.shard/b0af2b81-22cf-482e-9b2f-c431b6449dae.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:29:50.536798] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-0: > remote operation failed. Path: > /.shard/b0af2b81-22cf-482e-9b2f-c431b6449dae.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:29:50.536959] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-2: > remote operation failed. Path: > /.shard/b0af2b81-22cf-482e-9b2f-c431b6449dae.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:29:50.537007] E [MSGID: 133010] > [shard.c:2327:shard_common_lookup_shards_cbk] 0-data_fast-shard: Lookup on > shard 79 failed. Base file gfid = b0af2b81-22cf-482e-9b2f-c431b6449dae > [Permission denied] > [2019-11-21 00:29:50.537066] W [fuse-bridge.c:2830:fuse_readv_cbk] > 0-glusterfs-fuse: 12458: READ => -1 > gfid=b0af2b81-22cf-482e-9b2f-c431b6449dae fd=0x7fc63c00fe18 (Permission > denied) > [2019-11-21 00:30:01.177665] I [MSGID: 133022] > [shard.c:3674:shard_delete_shards] 0-data_fast-shard: Deleted shards of > gfid=eb103fbf-80dc-425d-882f-1e4efe510db5 from backend > [2019-11-21 00:30:13.132756] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-0: > remote operation failed. Path: > /.shard/17c663c2-f582-455b-b806-3b9d01fb2c6c.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:13.132824] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-1: > remote operation failed. Path: > /.shard/17c663c2-f582-455b-b806-3b9d01fb2c6c.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:13.133217] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-2: > remote operation failed. Path: > /.shard/17c663c2-f582-455b-b806-3b9d01fb2c6c.79 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:13.133238] E [MSGID: 133010] > [shard.c:2327:shard_common_lookup_shards_cbk] 0-data_fast-shard: Lookup on > shard 79 failed. Base file gfid = 17c663c2-f582-455b-b806-3b9d01fb2c6c > [Permission denied] > [2019-11-21 00:30:13.133264] W [fuse-bridge.c:2830:fuse_readv_cbk] > 0-glusterfs-fuse: 12660: READ => -1 > gfid=17c663c2-f582-455b-b806-3b9d01fb2c6c fd=0x7fc63c007038 (Permission > denied) > [2019-11-21 00:30:38.489449] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-0: > remote operation failed. Path: > /.shard/a10a5ae8-108b-4d78-9e65-cca188c27fc4.6 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:38.489520] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-1: > remote operation failed. Path: > /.shard/a10a5ae8-108b-4d78-9e65-cca188c27fc4.6 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:38.489669] W [MSGID: 114031] > [client-rpc-fops_v2.c:2634:client4_0_lookup_cbk] 0-data_fast-client-2: > remote operation failed. Path: > /.shard/a10a5ae8-108b-4d78-9e65-cca188c27fc4.6 > (00000000-0000-0000-0000-000000000000) [Permission denied] > [2019-11-21 00:30:38.489717] E [MSGID: 133010] > [shard.c:2327:shard_common_lookup_shards_cbk] 0-data_fast-shard: Lookup on > shard 6 failed. Base file gfid = a10a5ae8-108b-4d78-9e65-cca188c27fc4 > [Permission denied] > [2019-11-21 00:30:38.489777] W [fuse-bridge.c:2830:fuse_readv_cbk] > 0-glusterfs-fuse: 12928: READ => -1 > gfid=a10a5ae8-108b-4d78-9e65-cca188c27fc4 fd=0x7fc63c01a058 (Permission > denied) > > > Anyone got an idea why is it happening? > I checked user/group and selinux permissions - all OK > > > >Can you share the commands (and output) used to check this? > I first thought that the file is cached in memory and that's why vdsm user > can read the file , but the following shows opposite: > > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# ll > total 562145 > -rw-rw----. 1 vdsm kvm 5368709120 Nov 12 23:29 > 5b1d3113-5cca-4582-9029-634b16338a2f > -rw-rw----. 1 vdsm kvm 1048576 Nov 11 14:11 > 5b1d3113-5cca-4582-9029-634b16338a2f.lease > -rw-r--r--. 1 vdsm kvm 313 Nov 11 14:11 > 5b1d3113-5cca-4582-9029-634b16338a2f.meta > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# pwd > > /rhev/data-center/mnt/glusterSD/gluster1:_data__fast/396604d9-2a9e-49cd-9563-fdc79981f67b/images/94f763e9-fd96-4bee-a6b2-31af841a918b > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# echo 3 > > /proc/sys/vm/drop_caches > I would use iflag=direct instead, no need to mess with caches. Vdsm always use direct I/O. > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# sudo -u vdsm dd > if=5b1d3113-5cca-4582-9029-634b16338a2f of=/dev/null bs=4M status=progress > dd: error reading â5b1d3113-5cca-4582-9029-634b16338a2fâ: Permission denied > You got permissions denied... > 16+0 records in > 16+0 records out > 67108864 bytes (67 MB) copied, 0.198372 s, 338 MB/s > And dd continue to read data?! I have never seen anything like this. It will be helpful to run this with strace: strace -t -TT -o dd.strace dd if=vol-id of=/dev/null iflag=direct bs=8M status=progress And share dd.strace. Logs in /var/log/glusterfs/exportname.log will contain useful info for this test. > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# dd > if=5b1d3113-5cca-4582-9029-634b16338a2f of=/dev/null bs=4M status=progress > 5356126208 bytes (5.4 GB) copied, 12.061393 s, 444 MB/s > 1280+0 records in > 1280+0 records out > 5368709120 bytes (5.4 GB) copied, 12.0876 s, 444 MB/s > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# sudo -u vdsm dd > if=5b1d3113-5cca-4582-9029-634b16338a2f of=/dev/null bs=4M status=progress > 3598712832 bytes (3.6 GB) copied, 1.000540 s, 3.6 GB/s > 1280+0 records in > 1280+0 records out > 5368709120 bytes (5.4 GB) copied, 1.47071 s, 3.7 GB/s > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# echo 3 > > /proc/sys/vm/drop_caches > [root@ovirt1 94f763e9-fd96-4bee-a6b2-31af841a918b]# sudo -u vdsm dd > if=5b1d3113-5cca-4582-9029-634b16338a2f of=/dev/null bs=4M status=progress > 5171576832 bytes (5.2 GB) copied, 12.071837 s, 428 MB/s > 1280+0 records in > 1280+0 records out > 5368709120 bytes (5.4 GB) copied, 12.4873 s, 430 MB/s > > As you can see , once root user reads the file -> vdsm user can also do > that. > Smells like issue on gluster side. > >I would try this on the hypervisor to check what vdsm/qemu see: > > >$ ls -lahRZ /rhv/data-center/mnt/glusterSD/gluster-server:_path > I'm attaching the output of the find I run, but this one should be enough: > [root@ovirt1 ~]# find /rhev/data-center/mnt/glusterSD/*/[0-9]*/images/ > -not -user vdsm -print > A full output of ls -lahRZ, showing user, group, permissions bits, and selinux label of the entire tree will be more useful. > >Also, to make sure we don't have selinux issue on the hypervisor, you can > change > >selinux to permissive mode: > > > setenforce 0 > > This is the first thing I did and the systems were still in permissive > when I tried again.I'm 99.99% sure it's not selinux. > > > >And then try again. If this was selinux issue the permission denied issue > will disappear. > >If this is the case please provide the output of: > > > ausearh -m AVC -ts today > > >If the issue still exists, we eliminated selinux, and you can enable it > again: > > > setenforce 1 > > [root@ovirt3 ~]# ausearch -m AVC -ts today > <no matches> > [root@ovirt2 ~]# ausearch -m AVC -ts today > <no matches> > [root@ovirt1 ~]# ausearch -m AVC -ts today > <no matches> > So this is not selinux on the hypervisor. I wonder if it can be selinux on the gluster side? > I have a vague feeling that the issue is related to gluster v6.5 to 6.6 > upgrade which I several days before... So if any logs are needed (or debug > enabled), just mention. > If this is the last change, and it worked before, most likely. Nir
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