Thomas,
I did not see anything in the documentation describing WHERE to install the
robinhood daemons. We are trying to use the changelog to avoid file scans so
that is why I installed on the MDS. So right now, this is how I installed
it based on the current documentation , as I understood it (which is not saying
much! =) )
Robinhood adm and daemons installed on MDS
Lustre filesystem mount is mounted on to the MDS itself /mnt/client/lustre
Separate server connected to same IB fabric of our lustre file system which is
running mysql/web
MDS robinhood daemons send changelog updates to the mysql server IPoIB.
If we have to run reports they would be executed from the mds (rbh-report etc)
, scary.
It is now my understanding that we can put everything on one dedicated server
as long as it is connected to the IB fabric? We can get change logs from the
client ?
Thanks for clarification on all of this. Luckily this is just a test system
for us and would like to get this worked out before we bring our production
lustre to 2.X from 1.8 with RH watching it!
By the way we are just using the tmpfs mode for now.
Matt B.
From: LEIBOVICI Thomas [mailto:[email protected]]
Sent: Friday, April 18, 2014 3:22 AM
To: Matthew BETTINGER
Cc: [email protected]
Subject: Re: [PROVENANCE INTERNET] Re: [robinhood-support] Installation
questions
Hi Matthew,
This is not the first time a new user first think that robinhood has to run on
the MDS.
Can you please indicate me what part of the documentation made you believe that
(or where you would have expected to find this information) so I can try to
make it clear.
Regards,
Thomas
On 04/18/14 09:55, DEGREMONT Aurelien wrote:
Hello
RobinHood has to be installed on a *CLIENT* node. Not MDS at all.
I think this answers all your questions :)
Aurélien
Le 17/04/2014 20:16, Matthew BETTINGER a écrit :
Hello,
We are testing robin hood 2.5.1 tmpfs mode with Lustre 2.4.3 running on
rhel6.4. My MySQL and WebUI are installed together on a separate server. I
have a few installation questions that hopefully someone can answer.
#1 Do the robin hood rpms only need to be installed on the MDS server? We
have MDT MGS on same server
#2 Can we install the rbh-report et. al. utilities on another server or network
area to avoid running these commands from the MDS server? If so do we just
need to have a stripped down config file with just the MySQL db login
information to connect in to the MySQL db and gather report stats? Such as
MySQL
{
server = "mysqlserver" ;
db = "robinhood" ;
user = "robinhood" ;
password_file = "/etc/robinhood.d/.dbpassword" ;
# port = 3306 ;
# socket = "/tmp/mysql.sock" ;
innodb = enabled ;
}
So we can do rbh-report -f /some/dir/lustsre.conf
>From a server other than the MDS, perhaps the mysql/webui server.
#3 Since we are using the MDT changelogs and not file system scans do we need
to have the Lustre file system mounted on to the MDS server which has the robin
hood services ?
Thank you,
Matt Bettinger
Advanced Computing/Numerical Methods
Total E&P Research & Technology USA, LLC
1201 Louisiana St., Suite 1800, Houston TX 77002
Phone: 713-647-3352
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