View source for 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

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[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

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

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[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 

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* Rpm should be generated 

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[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

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=== 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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