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GlusterFS is an open source scale-out NAS solution. The software is a powerful and flexible solution that simplifies the task of managing unstructured file data whether you have a few terabytes of storage or multiple petabytes. It’s no secret that unstructured data is growing like crazy, Gluster provides a solutions that scales capacity and performance as you need it and is an ideal fit for an IT environment that is increasingly virtualized and moving to the cloud. There are two key ways that GlusterFS is beneficial for cloud builders: 1. Storage layer for VMs. If you're deploying Xen or KVM VMs on a private cloud, storing them on GlusterFS gives you the ability to migrate to different hypervisors, suspend and resume quickly - even on another hypervisor, scale out far beyond what other filesystems will allow, and utilize N-way replication for DR and HA 2. Unified storage layer for applications. With GlusterFS 3.3, you will be able to access your application data stores from an object (S3, Swift-style) interface, as well as a traditional POSIX-compatible NAS interface. This unified approach gives developers and admins the ability to access the same data store using a variety of different methods. In this session, attendees will learn steps for deployment and some common use cases. Speaker Bio John Mark is an experienced veteran of all things open source and a self-described agitprop, agitator and advocate for those who volunteer countless, unpaid hours for a particular project or community. He first fell down the slippery slope of open source as a web developer at VA Linux Systems and eventually switched to the community team, beginning a career that has now lasted over ten years. Along the way, John Mark made stops at young, up-and-coming startups, such as Groundwork, Hyperic and then Gluster (later acquired by Red Hat). In between, there was a brief interlude at IDG World Expo, where he was the conference director for LinuxWorld, GridWorld and OSBC. His advice for companies who want to "do community" is to trust your community and give them the space to "just try s***." John Mark loves to perform community karaoke, and is available for weddings, funerals and Bar/Bat Mitzvahs
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Distributed Petabyte-Scale Cloud Storage with GlusterFSThe Future of GlusterFS and Gluster.org
John Mark WalkerGlusterFS Community Guy
Red Hat, Inc.February 28, 2012
February 28, 2012 The Future of Gluster.org - John Mark Walker
The Roots of GlusterFS
● Distributed storage solutions difficult to find● Decided to write their own● No filesystem experts – Pro & Con● Applied lessons from microkernel architecture
– GNU Hurd
The Roots of GlusterFS
● All storage solutions were either● Too expensive. or...● Not scalable, or…● Single purpose, or…● Don’t support legacy apps, or…● Don't support new apps, or...● Do some combo of the above, but not very well
The Roots of GlusterFS
● The challenge:● Create a storage system that was…
– Scalable– Seamlessly integrated in the data center– Future-proof
● The solution: GlusterFS● Scalable, with DHT● POSIX-compliant● Stackable● User-space
GlusterFS Client Architecture
● Creating a file system in user space● Utilizes fuse module
– Kernel goes through fuse, which hands off to glusterd
Linux kernel
Fuse Ext4
glusterd
… …
Applications
No Centralized Metadata
Client A Client B Client C
Server X
Files
Extended Attr.
Server Y
Files
Extended Attr.
Server Z
Files
Extended Attr.
What is a Translator?
● Add/remove layers● Reorder layers● Move layers between
client and server● Implement new layers
● e.g. encryption
● Replace old layers● e.g. replication
FUSE Interface Layer
Performance Layer
Distribution Layer
Replication Layer
Protocol Layer
Local Filesystem Later
Some Features
● Distributed, replicated and/or striped volumes● Global namespace● High availability● Geo-replication● Rebalancing● Remove or replace bricks● Self healing● volume profile and top metrics
No one ever expects the Red Hat acquisition
Red Hat Invests in GlusterFS
● Unstructured data volume to grow 44x by 2020● Cloud and virtualization are driving scale-out
storage growth● Scale-out storage shipments to exceed 63,000
PB by 2015 (74% CAGR)● 40% of core cloud spend related to storage● GlusterFS-based solutions up to 50% less than
other storage systems
Red Hat Invests in GlusterFS
● GlusterFS adds to the Red Hat stack● Complements other
Red Hat offerings● Many integration points
● More engineers hacking on GlusterFS than ever before
RHEL
RHEV BareMetal
Clouds
GlusterFS Unified Storage
JBoss
Red Hat Invests in GlusterFS
● Acceleration of community investment● GlusterFS needs to be “bigger than Red Hat”● Transformation of GlusterFS from product to project
– From “open core” to upstream● More resources for engineering and community
outreach● Red Hat's success rests on economies of scale
– Critical mass of users and developers
Join a Winning Team
● We're hiring hackers and engineers● Looking for community collaborators
● ISVs, students, IT professionals, fans, et al.
“Join me, and together, we can rule the galaxy...”
The Immediate Future
The Gluster Community
● 300,000+ downloads● ~35,000 /month
● >300% increase Y/Y
● 1000+ deployments● 45 countries
● 2,000+ registered users
● Mailing lists, Forums, etc.
Global adoption
The Gluster Community
● Why are we changing?● Only 1 non-Red Hat core contributor
– There were 2, but he acquired us● Want to be the software standard for distributed
storage● Want to be more inclusive, more community-driven
Goal: create global ecosystem that supports ISVs, service providers and more
Towards “Real” Open Source
● GlusterFS, prior to acquisition● “Open Core”● Tied directly to Gluster products
– No differentiation ● Very little outside collaboration● Contributors had to assign copyright to Gluster
– Discouraged would-be contributors
Commercial Product
Towards “Real” Open Source
Open SourceCode
“Open Core”● All engineering controlled by
project/product sponsor
● No innovation outside of core engineering team
● All open source features also in commercial product
● Many features in Commercial product not in open source code
Open Source Code
Towards “Real” Open Source
Commercial Products
“Real” Open Source● Many points of collaboration
and innovation in open source project
● Engineering team from multiple sources
● Project and product do not completely overlap
● Commercial products are hardened, more secure and thoroughly tested
Fedora Linux
Towards “Real” Open Source
RHEL
“Real” Open Source● Enables more innovation on
the fringes
● Engineering team from multiple sources
● Open source project is “upstream” from commercial product
● “Downstream” products are hardened, more secure and thoroughly tested
GlusterFS
Towards “Real” Open Source
Red Hat Storage
“Real” Open Source● Enables more innovation on
the fringes
● Engineering team from multiple sources
● Open source project is “upstream” from commercial product
● “Downstream” products are hardened, more secure and thoroughly tested
Project Roadmaps
GlusterFS 3.3 ETA in Q2/Q3 2012
What's New in GlusterFS 3.3● New features
● Unified File & Object access
● Hadoop / HDFS compatibility
● New Volume Type● Replicated + striped (+ distributed) volumes
● Enhancements to Distributed volumes (DHT translator)● Rebalance can migrate open files
● Remove-brick can migrate data to remaining bricks
● Enhancements to Replicated volumes (AFR translator)● Change replica count on an active volume, add replication to distribute-only volumes
● Granular locking – Much faster self-healing for large files
● Proactive self-heal process starts without FS stat
● Round-trip reduction for lower latency
● Quorum enforcement - avoid split brain scenarios
File and Object Storage
● Traditional SAN / NAS support either file or block storage
● New storage methodologies implement RESTful APIs over HTTP
● Demand for unifying the storage infrastructure increasing
● Treats files as objects and volumes as buckets
● Available now in 3.3 betas
● Soon to be backported to 3.2.x
● Contributing to OpenStack project● Re-factored Swift API
Technology Integrations
OpenStack Imaging Services
Unified File &Object Storage
…Compute
API Layer Mobile Apps. Web Clients. Enterprise Software Ecosystem
GlusterFS used as VM storage system● Pause and re-start VM’s, even on another
hypervisor● HA and DR for VM’s● Faster VM deployment ● V-motion –like capability
Shared storage ISOs and appliances● oVirt / RHEV ● CloudStack● OpenStack
Goal: The standard for cloud storage
HDFS/Hadoop Compatibility
● HDFS compatibility library● Simultaneous file and object access within Hadoop
● Benefits● Legacy app access to MapReduce applications
● Enables data storage consolidation
● Simplify and unify storage deployments
● Provide users with file level access to data
● Enable legacy applications to access data via NFS● Analytic apps can access data without modification
The Gluster Community
● What is changing?● HekaFS / CloudFS being folded into Gluster project
– HekaFS == GlusterFS + multi-tenancy and SSL for auth and data encryption
– HekaFS.org – ETA ~9 months
What else?
GlusterFS Advisory Board
● Advisory board● Consists of industry and community leaders from Facebook, Citrix,
Fedora, and OpenStack– Richard Wareing, Storage Engineer, Facebook
– Jeff Darcy, Filesystem Engineer, Red Hat; Founder, HekaFS Project
– AB Periasamy, Co-Founder, GlusterFS project
– Ewan Mellor, Xen Engineer, Citrix; Member, OpenStack project
– David Nalley, CloudStack Community Mgr; Fedora Advisory Board
– Louis Zuckerman, Sr. System Administrator, Picture Marketing
– Joe Julian, Sr. System Administrator, Ed Wyse Beauty Products
– Greg DeKoenigsberg, Community VP, Eucalyptus; co-founder, Fedora
– John Mark Walker, Gluster.org Community Guy (Chair)
Gluster.org Web Site
● Services for users and developers● Developer section with comprehensive docs● Collaborative project hosting● Continuing development of end user documentation
and interactive tools● Published roadmaps
● Transparent feature development
GlusterFS Downloads
● Where's the code?● GlusterFS 3.3
– Simultaneous file + object– HDFS compatibility– Improved self-healing + VM hosting
● Granular locking
– Beta 3 due Feb/Mar 2012– http://download.gluster.org/pub/gluster/glusterfs
Gluster.org Services
● Gluster.org● Portal into all things GlusterFS
● Community.gluster.org● Self-support site; Q&A; HOWTOs; tutorials
● Patch review, CI● review.gluster.com
● #gluster● IRC channel on Freenode
Development Process
● Source code● Hosted at github.com/gluster
● Bugs and Feature Requests● Bugzilla.redhat.com – select GlusterFS from menu
● Patches● Submit via Gerritt at review.gluster.com
● See Development Work Flow doc: ● gluster.org/community/documentation/index.php/Development_Work_Flow
Thank You
● GlusterFS contacts● Gluster.org/interact/mailinglists● @RedHatStorage & @GlusterOrg● #gluster on Freenode
● My contact info● [email protected]● Twitter & identi.ca: @johnmark
