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April 20, 2022 14:31
September 29, 2020 07:32
March 16, 2021 12:19

I - License

Copyright (C) 2004-2017 CEA/DAM. Copyright 2013-2016 Cray Inc. All Rights Reserved.

This program is free software; you can redistribute it and/or modify it under the terms of the CeCILL-C License.

The fact that you are presently reading this means that you have had knowledge of the CeCILL-C license ( and that you accept its terms.

II - Compiling

2.1 - From source tarball

It is advised to build RobinHood on your target system, to ensure the best compatibility with your Lustre and MySQL versions.

Build requirements: glib2-devel, libattr-devel, mysql-devel or mariadb-devel, mailx, bison, flex. For lustre support: lustre or lustre-client

Unzip and untar the source distribution:

tar zxvf robinhood-3.x.x.tar.gz
cd robinhood-3.x.x

Configure and build:

make rpm

RPMs are generated in the 'rpms/RPMS/arch' directory.

2.2 - From git repository

Install git, and autotools stuff:

yum install git automake autoconf libtool

Retrieve robinhood sources

git clone
cd robinhood
git checkout master *(or other branch)*

Then refer to section 2.1 for next compilation steps.

2.3 - Build using src rpm

2.3.1 - Creating src rpm

Only requirements: rpm-build, gcc, flex, bison

To create src rpm on a host with minimal requirements, run:

./configure --enable-dist
make srpm

2.3.2 - Building from src rpm

By default, the src rpm builds robinhood for POSIX filesystems:

rpmbuild --rebuild robinhood-3.0*.src.rpm

To build robinhood binary RPM for a Lustre filsystem, run:

rpmbuild --rebuild robinhood-3.0*.src.rpm --with lustre --define "lversion x.y"

where x.y is your target lustre version (e.g. 2.7).

Note: if lustre-client is not installed on your target system, you can specify an alternative lustre package by defining "lpackage", e.g.

rpmbuild [...] --define "lpackage lustre"

Note: 'lversion' can be omitted, by it is strongly recommanded to prevent incompatibility issues between lustreapi versions.

III - Install

For installing robinhood on your target system, install robinhood-adm RPM. It includes configuration helper for DB, changelogs, ...

  • For lustre filesystems install robinhood-lustre RPM.
  • For other filesystems install robinhood-posix RPM.

IV - Database Configuration

Robinhood needs a MySQL database for storing information about files. This database can run on a different node from Robinhood daemon.

  • Install MySQL server on the machine (mysql-server and mysql packages).
  • Start the DB engine:
    • RHEL6: service mysqld start
    • RHEL7: systemctl start mariadb
  • Run the configuration helper script as root on the database host to create the database:
rbh-config create_db
  • Write the DB password to a file with read access for root only (600) e.g. to /etc/robinhood.d/.dbpassword

Note: initially, the database schema is empty. Robinhood will create it the first time it is launched.

V - Lustre 2.x Filesystems only: enabling changelogs

For Lustre, you must register robinhood as a MDT changelog consumer.

  • Run the configuration helper script on Lustre MDS:
rbh-config enable_chglogs

This registers a changelog consumer and activate required changelog records.

Note: by default, the script checks for a 'cl1' consumer. If you need to register several changelog consumers on your file system, refer to lustre documentation.

VI - Configuration file

Examples of config files are installed in /etc/robinhood.d/templates/

You can also use the '--template' option to generate a documented configuration file template:

robinhood --template=<template_file>

For more details, refer to Robinhood v3 admin guide.

Note: by default, robinhood searches configuration files in "/etc/robinhood.d".

VII - First run

Even if your filesystem is empty, you need to perform an initial scan in order to initialize robinhood database. This prevents from having entries in filesystem that it wouldn't know about.

robinhood --scan --once

VIII - Start the daemon

  • [el6 and el7] Configure common daemon options in /etc/sysconfig/robinhood
  • [el7] Configure per-filesystem daemon options in /etc/sysconfig/robinhood.<fsname>

Example: to read lustre changelogs and run all policies:

RBH_OPT="--readlog --run=all"

Example: to regularly scan filesystem and run all policies:

RBH_OPT="--scan --run=all"

Start the daemon:

[el6] service robinhood start
[el7] systemctl start robinhood@*fsname*


Robinhood Policy Engine : a versatile tool to monitor filesystem contents and schedule actions on filesystem entries.



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