[lustre-discuss] new install client locks up on ls /lustre

[Sid Young]

Hi all,

I'm new ish to lustre and I've just created a lustre 2.12.5 cluster using
the RPMs from whamcloud for Centos 7.8 with 1 MDT/MGS and 1 OSS with 3
OST's (20GB each)
Everything is formatted as ldiskfs and it's running on a vmware platform as
a test bed using tcp.
The MDT mounts ok, the OST's mount and on my client I can mount the /lustre
mount point (58GB) and I can ping everything via the lnet however as soon
as I try to do an ls -l /lustre or any kind of I/O the client locks solid
till I reboot it.

I've tried to work out how to run basic diagnostics to no avail so I am
stupped why I don't see a directory listing for what should be an empty 60G
disk.

On the MDS I ran this:
[root at lustre-mds tests]# lctl  dl
  0 UP osd-ldiskfs lustre-MDT0000-osd lustre-MDT0000-osd_UUID 10
  1 UP mgs MGS MGS 8
  2 UP mgc MGC10.140.95.118 at tcp acdb253b-b7a8-a949-0bf2-eaa17dc8dca4 4
  3 UP mds MDS MDS_uuid 2
  4 UP lod lustre-MDT0000-mdtlov lustre-MDT0000-mdtlov_UUID 3
  5 UP mdt lustre-MDT0000 lustre-MDT0000_UUID 12
  6 UP mdd lustre-MDD0000 lustre-MDD0000_UUID 3
  7 UP qmt lustre-QMT0000 lustre-QMT0000_UUID 3
  8 UP lwp lustre-MDT0000-lwp-MDT0000 lustre-MDT0000-lwp-MDT0000_UUID 4
  9 UP osp lustre-OST0000-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4
 10 UP osp lustre-OST0001-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4
 11 UP osp lustre-OST0002-osc-MDT0000 lustre-MDT0000-mdtlov_UUID 4
[root at lustre-mds tests]#

So it looks like I have everything is running even dmesg on the client
reports:

[    7.998649] Lustre: Lustre: Build Version: 2.12.5
[    8.016113] LNet: Added LNI 10.140.95.65 at tcp [8/256/0/180]
[    8.016214] LNet: Accept secure, port 988
[   10.992285] Lustre: Mounted lustre-client


Any pointer where to look? /var/log/messages shows no errors


Sid Young
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