Bright Cluster Manager Knowledge Base

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Cloudbursting: How do I configure cloud nodes on the fly?
Answer: How do I configure cloud nodes on the fly? To start or stop cloud nodes dynamically according to current jobs needs you can use the cloud-resize ...
High Availability: How do I rename my head nodes?
Answer: I've got a failover setup. How do I rename my head nodes? The following works even if you are exchanging names: Eg: head 1 is a white ...
Configuring: How do I make regular nodes return an FQDN using 'hostname -f'? Or resolve the
Answer: How do I make regular nodes return an FQDN using 'hostname -f'? Or resolve the hostnames to IPs on the external network? There are two ways ...
Node Provisioning: How can I flash update all my nodes (from DOS)?
Answer: How can I flash update all my nodes (from DOS)? (For update via Linux, see http://kb.brightcomputing.com/faq/index.php?action=artikel&cat=11&id=105 ) The problem:I have to perform some maintenance on the nodes ...
Configuring: How do I stop nodes from accessing the internet?
Answer: How do I stop nodes from accessing the Internet? By default all compute nodes use the head node as its default gateway, and the head node ...
Node Provisioning: How do I automatically plug in new nodes and assign it an identity in Bright?
Answer: How do I automatically plug in new nodes and assign it an identity in Bright? The following technique can save labor, when you are adding a ...
Software Management: Why has my software suite has vanished from the bunch of nodes I installed it
Answer: Most likely you installed the software directly onto those nodes instead of on the "software image". Then, after a reboot of the nodes, whatever you ...
Cloudbursting: How do I use EBS volume snapshots to boot my cloud nodes?
Answer: Why should I use snapshots? Because it reduces the provisioning times of your cloud nodes. Some more background details By default, all newly-created cloud nodes, and their associated ...
NVIDIA DGX: How do I add NVIDIA DGX nodes to a Bright cluster using the official Ubuntu
Answer: How do I add NVIDIA DGX nodes to a Bright cluster using the official Ubuntu DGX software stack? Bright provides a software image for the official ...
OpenStack: How do I extend an OpenStack cluster with extra controller/network nodes?
Answer: How do I extend an OpenStack cluster with extra controller/network nodes? Scenario: You have installed OpenStack with one controller. Now you want to add two more controllers ...
High Availability: How to Install Lustre with ZFS and HA for OSS and MDS Nodes
Answer: Prerequisites: 2 OSS nodes connected via SAS over multiple paths to their own JBOD shared storage (minimum eight drives) 2 MDS nodes connected via SAS over multiple ...
Configuring: How do I install LUKS/NBDE onto Bright nodes?
Answer: How do I use LUKS + NBDE "Network-Bound Disk Encryption" to encrypt data on regular Bright nodes? Introduction: This FAQ describes how to use Network-Bound Disk Encryption ...
Node Provisioning: My regular nodes aren't booting up after an update, why? What now?
Answer: Some updates in the software image require recreating the initrd. Bright Cluster Manager is not aware of such updates. As result, when regular nodes are rebooted, ...
Configuring: Can I dual-boot my nodes between Linux and Windows?
Answer: There are a number of ways to set up nodes that dual-boot between Linux and Windows. Bright Cluster Manager cannot provision Windows images to compute ...
Node Provisioning: How can I flash update all my nodes (from Linux)?
Answer: How can I flash update all my nodes (from Linux)? (For update via DOS, see http://kb.brightcomputing.com/faq/index.php?action=artikel&cat=20&id=94 ) Some manufacturers like Dell provide a flash BIOS upgrade utility ...
Initialize And Finalize Scripts: How do I use the finalize script to transfer certificates to the nodes?
Answer: How do I use the finalize script to transfer certificates to the nodes? In many cases, it might be desired to use node-specific certificates for certain ...
Cluster Monitoring: How do I run a health check only for a specific set of nodes?
Answer: With Bright 8.x this can be done using nodeexecutionfilters. Example: Modifying the megaraid health check to only be run on a specific set of nodes rather than ...
Configuring: How do I add a login node?
Answer: How do I add a login node? Table of contents Why have a login node?What do we need to consider for login nodes?1. Make a login image ...
Third Party Software: How can I use CUDA MPS with Bright?
Answer: Introduction CUDA MPS is a feature that allows multiple CUDA processes to share a single GPU context. A CUDA program runs in MPS mode, if the ...
Power Management: Setup up custom power scripts for ProfitBricks
Answer: Custom Power Scripts for controlling ProfitBricks Instances Prerequisites To use dynamic scaling of clusters on ProfitBricks’ IaaS platform you have to install a head node in a ...
Workload Management: How do I integrate externally executed UGE/SGE server with Bright Cluster Manager 6.0?
Answer: Mount the $SGE_ROOT directory from your external server that is to be managed by the Bright Cluster Manager (BCM) head node. Make sure that q* ...
Workload Management: Why is my workload manager configuration changed by Bright?
Answer: Why is my workload manager configuration changed by Bright? Or perhaps: How do I make configuration changes to the workload manager (WLM) permanent? If the configuration changes of ...
Workload Management: How do I call Slurm utilities from nodes that run no slurmdbd?
Answer: On a node, some Slurm utilities such as sacct need to connect to the slurmdbd daemon. slurmdbd in turn talks to mysql. If the node ...
Installing BCM: What is a product key?
Answer: What is a product key? A product key is used to unlock a license. When you get a Bright Cluster Manager DVD, there is a license included ...
General: Should I upgrade to a new version? I've got everything running perfectly on my current
Answer: It is important to distinguish between updates and upgrades. Updates Package updates are provided through Bright's YUM/Zypper repositories. It is recommended to check for new updates on ...
Node Provisioning: Timeouts during loading of InfiniBand drivers make my filesystem clients fail. Is there a workaround?
Answer: Yes. Driver modules load in a hierarchy (a dependency chain), and delays due to non-standard use can cause timeouts as one particular driver module may not ...
Configuring: How can I easily check the InfiniBand network is being used rather than my gigabit
Answer: A no-brainer way to verify your IB network is working with MPI is to run an MPI benchmark and see if it is running at ...
Initialize And Finalize Scripts: How do I handle network interfaces swapping names?
Answer: How do I handle network interfaces swapping names? eth0 keeps changing randomly on boot to eth1 and vice versa. There are two ways to handle this ...
Node Provisioning: How do I set up a root FS over Lustre?
Answer: How do I set up a root FS over Lustre? This article describes how to configure a cluster so that the compute nodes mount their root ...
Third Party Software: How do I integrate GPFS 3.x with Bright?
Answer: How do I integrate GPFS with Bright? GPFS can be integrated with Bright in two ways. Either by mounting a GPFS filesystem on an existing Bright ...
Third Party Software: How do I run the HPL test on a Bright Cluster?
Answer: How do I run the HPL test on a Bright Cluster? What is HPL? Slightly rewording from http://www.netlib.org/benchmark/hpl/: HPL is a software package that solves a random, dense ...
Configuring: How do I add an alias interface?
Answer: How do I add alias interfaces to the regular nodes? [Background note: IP aliasing allows you to configure multiple IP addresses on one physical interface. This ...
Day-to-day Administration: Can I mix Linux distributions on my cluster?
Answer: Can the Bright Cluster Manager (BCM) be used to manage a mix of Linux distributions within the same cluster?Yes. Introduction With BCM, multiple, different images can be ...
Software Management: Why do mails flood in after updating my software image?
Answer: Short answer Because there is probably some mail generated in the mail spool in the software image. When, and on which versions does it happen? This issue occurs ...
Workload Management: How do I setup the Torque 2.5 package on Bright Cluster Manager 6.0 cluster?
Answer: By default, Torque 3.x (name of packages: torque and torque-client) is setup on a Bright Cluster Manager 6.0 cluster. However Torque 2.5.x is sometimes preferred by ...
Software Management: How do I add a Bright ISO as a YUM repository?
Answer: How do I add a Bright ISO as a YUM repository? or How do I update my cluster from a new Bright ISO that I just downloaded? Outline If ...
Third Party Software: How can I use the Intel VTune XE with Bright?
Answer: Introduction Intel's VTune Amplifier is a commercial application for performance analysis on 32 and 64-bit x86 based machines, and has both GUI and command-line interfaces. Basic features ...
User Management: How do I integrate Bright with AD Using SSSD 's LDAP provider and Simple BIND?
Answer: How do I integrate a Bright cluster into an Active Directory domain with SSSD 's LDAP provider? (The method in "How do I authenticate against Active ...
Installing BCM: Does Bright work with a 10 Gig-E switch?
Answer: Is it possible to deploy a Bright Cluster using 10 Gig-E switches instead of 1 Gigabit switches? Yes. But make sure that your 10 Gig-E NICs can ...
Installing BCM: How do I upgrade my cluster if I have a storage node that is being
Answer: How do I update a cluster with a storage node that is shared? Upgrading with a Storage Node Special considerations must be made when upgrading Bright versions ...
Installing BCM: How do I install Bright on Virtual Box?
Answer: How do I install Bright on Virtual Box? Prerequisite: In order to use PXE booting, the VirtualBox Extension Pack should be installed. Create a Virtual Machine (VM) for ...
Big Data: How can I patch Apache HBase 1.2.x for the Kerberos TGT renewal issue?
Answer: How can I patch Apache HBase 1.2.x for the Kerberos TGT renewal issue?The Problem HBase stops working after 24 hours. Restarting all HBase services will fix ...
Installing BCM: How do I run Bright under MS Windows Server Hyper-V (Windows Server 2012R2)?
Answer: How do I run Bright under MS Windows Server Hyper-V (Windows Server 2012R2)? This article walks you through an install of Bright under Microsoft Hyper-V (Windows ...
OpenStack: How do I set up Cluster as a Service (CaaS) on Bright OpenStack 7.2?
Answer: Cluster as a Service on Bright OpenStack 7.2 [The following notes explain setting up a clusters as a service in Bright Cluster Manager. This ...
Third Party Software: How do I use ScaleMP on Bright?
Answer: How can I run ScaleMP on Bright? This guide describes how to use ScaleMP’s vSMP for Cloud product to create virtual SMP nodes in a cluster. Installing ...
OpenStack: How do I set up Cluster as a Service (CaaS) on Bright OpenStack 7.1?
Answer: Cluster as a Service on Bright OpenStack 7.1 [The following notes explain setting up a clusters as a service in Bright Cluster Manager. This means that ...
Workload Management: How do I integrate Univa Grid Engine with Bright Cluster Manager?
Answer: How do I integrate Univa Grid Engine with Bright Cluster Manager? For updated versions of Bright Cluster Manager version 7 and beyond, UGE is integrated with ...
Day-to-day Administration: My LDAP server won't start because the database is corrupt. How do I fix it?
Answer: My LDAP server won't start because the database is corrupt. How do I fix it? Possible cause OpenLDAP uses a storage format (BerkeleyDB) which is known to ...
Big Data: How can I add Apache Oozie to my Hortonworks HDP 2.3.0 Hadoop instance?
Answer: How can I add Apache Oozie to my Hadoop instance? Apache Oozie is a workflow scheduler system to manage Apache Hadoop jobs. Here we describe how ...
Configuring: What is cm-register-node, and how can I use it?
Answer: What is cm-register-node, and how can I use it? (was: How can I add an SGI UV node to an existing Bright Cluster?) Written in catechismic ...

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