The most meaningful log is:
2017/10/11 21:18:13 [102930/1] ChangeLog | ERROR -2 opening changelog
for MDT 'snx11038-MDT0000': No such file or directory
Can you run "strace -f robinhood --readlog --once"
This will give us more information about the low level operation that
returns this "No such file or directory" error.
Thomas
On 10/11/17 17:01, Andrew Elwell wrote:
I would recommend to have the same Lustre version on the robinhood host
than on the servers.
in an ideal world, yes :-) however our other servers are at least 2.7
with plans to move them to 2.10
Does a simple "lfs changelog <fsname>" command passes on your lustre 2.10
client?
no - we need the MDT name too as you said in second mail
aelwell@f001:~$ sudo lfs changelog snx11038 | head
Can't start changelog: No such file or directory
aelwell@f001:~$ sudo lfs changelog snx11038-MDT0000 | head
12881769619 06UNLNK 06:14:02.639032252 2017.10.11 0x0
t=[0x2187224f5:0x1abc0:0x0] p=[0x218722300:0x1fea0:0x0]
diamond-59e5941f-7.tmp
12881769620 11CLOSE 06:14:02.639032252 2017.10.11 0x243
t=[0x2187224f3:0x1b2ac:0x0]
12881769621 01CREAT 06:14:02.639032252 2017.10.11 0x0
t=[0x2187224f3:0x1b2fa:0x0] p=[0x218722300:0x1fea0:0x0]
diamond-59e64c88-6.tmp
12881769622 01CREAT 06:14:02.639032252 2017.10.11 0x0
t=[0x2187224f4:0x1a8f4:0x0] p=[0x218722300:0x1fea0:0x0]
diamond-59ea41e2-1c.tm
however I notice that you need to be root to read the changelogs -
robinhood isn't dropping permissions is it?
aelwell@f001:~$ lfs changelog snx11038-MDT0000 | head
Can't start changelog: Permission denied
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