Lustre plugin doesn't work on Lustre 2.12+

[kcgthb]

SUMMARY

Lustre plugin doesn't work on Lustre 2.12+

ISSUE TYPE

• Bug Report

DOOL VERSION

Dool 1.0.0
Written by Scott Baker <scott@perturb.org>
Forked from Dstat written by Dag Wieers <dag@wieers.com>
Homepage at https://github.com/scottchiefbaker/dool/

Platform posix/linux
Kernel 3.10.0-1160.62.1.el7.x86_64
Python 3.6.8 (default, Nov 16 2020, 16:55:22)
[GCC 4.8.5 20150623 (Red Hat 4.8.5-44)]

Terminal type: xterm-256color (color support)
Terminal size: 53 lines, 270 columns

Processors: 40
Pagesize: 4096
Clock ticks per secs: 100

internal:
        aio,cpu,cpu-adv,cpu-use,cpu24,disk,disk24,disk24-old,epoch,fs,int,int24,io,ipc,load,lock,mem,mem-adv,net,page,page24,proc,raw,socket,swap,swap-old,sys,tcp,time,udp,unix,vm,vm-adv,zones
/usr/share/dool:
        battery,battery-remain,bond,condor-queue,cpufreq,dbus,disk-avgqu,disk-avgrq,disk-svctm,disk-tps,disk-util,disk-wait,dool,dool-cpu,dool-ctxt,dool-mem,fan,freespace,fuse,gpfs,gpfs-ops,helloworld,ib,innodb-buffer,innodb-io,innodb-ops,
        jvm-full,jvm-vm,lustre,md-status,memcache-hits,mongodb-conn,mongodb-mem,mongodb-opcount,mongodb-queue,mongodb-stats,mysql-io,mysql-keys,mysql5-cmds,mysql5-conn,mysql5-innodb,mysql5-innodb-basic,mysql5-innodb-extra,mysql5-io,mysql5-keys,
        net-packets,nfs3,nfs3-ops,nfsd3,nfsd3-ops,nfsd4-ops,nfsstat4,ntp,postfix,power,proc-count,qmail,redis,rpc,rpcd,sendmail,snmp-cpu,snmp-load,snmp-mem,snmp-net,snmp-net-err,snmp-sys,snooze,squid,test,thermal,top-bio,top-bio-adv,
        top-childwait,top-cpu,top-cpu-adv,top-cputime,top-cputime-avg,top-int,top-io,top-io-adv,top-latency,top-latency-avg,top-mem,top-oom,utmp,vm-cpu,vm-mem,vm-mem-adv,vmk-hba,vmk-int,vmk-nic,vz-cpu,vz-io,vz-ubc,wifi,zfs-arc,zfs-l2arc,
        zfs-zil

OS / ENVIRONMENT

See above.
Running Lustre version 2.12

# cat /sys/fs/lustre/version
2.12.8_10_g785ad11

STEPS TO REPRODUCE

# dool --lustre
Module dool_lustre failed to load. (Lustre filesystem not found)
None of the stats you selected are available.
# cat /sys/fs/lustre/version
2.12.8_10_g785ad11

EXPECTED RESULTS

Working Lustre metrics.

ACTUAL RESULTS

# dool --lustre
Module dool_lustre failed to load. (Lustre filesystem not found)
None of the stats you selected are available.

The plugin doesn't load, because the Lustre client stats moved from /proc/fs/lustre/llite to /sys/kernel/debug/lustre/llite in version 2.12.