[lustre-discuss] ltop for lustre 2.10.2 ?

Di Natale, Giuseppe dinatale2 at llnl.gov
Thu Feb 1 11:37:56 PST 2018

Hi Alex,

We are aware of the problem. I'm going to try and develop a patch to handle the move to /sys/ in the next week or so.


From: lustre-discuss <lustre-discuss-bounces at lists.lustre.org> on behalf of Alexander I Kulyavtsev <aik at fnal.gov>
Sent: Thursday, February 1, 2018 9:10:20 AM
To: lustre-discuss at lists.lustre.org
Subject: [lustre-discuss] ltop for lustre 2.10.2 ?

Is there version of ltop working with lustre 2.10.2 ?

lmtmetric does not work on mds; it is OK checking ost on oss.

# lmtmetric -m mdt
lmtmetric: error reading lustre MDS uuid from proc: Invalid argument
lmtmetric: mdt metric: Invalid argument

I suspect it is due to lmtmetric constantly reading  /proc/fs/lustre/version and it is now in /sys/...

> [lustre-discuss] missing lustre version in /proc/fs/lustre/version
> Dilger, Andreas
> Tue Jun 20 15:34:57 PDT 2017
> ... skip ...
> We've had to move a lot of Lustre parameters out of /proc/fs/lustre and into /sys/fs/lustre
> for most parameter values, or /sys/kernel/debug/lustre (via debugfs) for large statistics
> due to rules imposed by the upstream kernel developers.
> ...

I'm trying to get ltop working on SLF 7.4 with lustre 2.10.2. No need for lmt & DB.

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