LMT: LMT installation

Installation

• In an running lustre

• Download cerebro-1.18 from https://github.com/chaos/cerebro/releases/download/cerebro-1-18-1/cerebro-1.18.tar.gz

[root@mds cerebro-1.18]# wget https://github.com/chaos/cerebro/releases/download/cerebro-1-18-1/cerebro-1.18.tar.gz
[root@mds cerebro-1.18]# rpmbuild -ba cerebro.spec

• Download lmt-3.1.8 https://github.com/LLNL/lmt/releases/download/3.1.8/lmt-3.1.8.tar.gz

[root@mds cerebro-1.18]# wget https://github.com/LLNL/lmt/releases/download/3.1.8/lmt-3.1.8.tar.gz
[root@mds cerebro-1.18]# rpmbuild -ba lmt.spec 

• Rpm should be generated

[root@mds ~]# ls rpmbuild/RPMS/x86_64/
cerebro-1.18-1.x86_64.rpm
cerebro-clusterlist-hostsfile-1.18-1.x86_64.rpm
cerebro-debuginfo-1.18-1.x86_64.rpm
cerebro-event-updown-1.18-1.x86_64.rpm
cerebro-metric-boottime-1.18-1.x86_64.rpm
cerebro-metric-loadavg-1.18-1.x86_64.rpm
cerebro-metric-memory-1.18-1.x86_64.rpm
cerebro-metric-network-1.18-1.x86_64.rpm
lmt-3.1.8-1.x86_64.rpm
lmt-server-3.1.8-1.x86_64.rpm
lmt-server-agent-3.1.8-1.x86_64.rpm

 

Install

• Install cerebro and lmt-server-agent on Lustre servers (OSS, MDS)
• Install cerebro and lmt-server on management node
• Restart cerebrod on Lustre servers.
• Run ltop (included in lmt-server) on management node.
• on Any MDT

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[root@mds ~]# /usr/sbin/lmtmetric -m mdt mdt: 1;mds;0.008771;2.242399;mylustre-MDT0000;52428558;52428800;73786856;73853732;10;0;0;10;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;0;10;0;0;0;0;0;0;0;0;8;0;0;11;0;0;0;0;0;0;0;0;0;0;0

[root@oss ~]# /usr/sbin/lmtmetric -m ost ost: 2;oss;0.004925;1.886331;mylustre-OST0000;1548536;1548800;103177832;103241000;0;6699027;13;3;3;0;0;2;0;INACTIVE 0s remaining;

Filesystem: mylustre

   Inodes:     50.000m total,      0.000m used (  0%),     50.000m free
    Space:      0.096t total,      0.000t used (  0%),      0.096t free
  Bytes/s:      0.000g read,       0.000g write,                 0 IOPS
  MDops/s:      0 open,        0 close,       0 getattr,       0 setattr
                0 link,        0 unlink,      0 mkdir,         0 rmdir
                0 statfs,      0 rename,      0 getxattr

>OST S OSS Exp CR rMB/s wMB/s IOPS LOCKS LGR LCR %cpu %mem %spc 0000 oss 3 0 0 0 0 3 0 0 0 2 0

[root@mgs ~]# ltop

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