This document discusses the key features and capabilities of the Gluster distributed file system including its ability to provide highly scalable storage across multiple petabytes using scale-out clusters. It can replicate data across geographic locations for disaster recovery and uses an algorithmic approach to avoid metadata bottlenecks. Gluster leverages commodity hardware and is software-only with no SAN requirements. It supports various deployment models including physical, virtual, cloud, and hybrid and uses open protocols like NFS, CIFS, and REST.
Gluster for Geeks: Performance Tuning Tips & TricksGlusterFS
In this Gluster for Geeks technical webinar, Jacob Shucart, Senior Systems Engineer, will provide useful tips and tricks to make a Gluster cluster meet your performance requirements. He will review considerations for all different phases including planning, configuration, implementation, tuning, and benchmarking.
Topics covered will include:
• Protocols (CIFS, NFS, GlusterFS)
• Hardware configuration
• Tuning parameters
• Performance benchmarks
This session will cover performance-related developments in Red Hat Gluster Storage 3 and share best practices for testing, sizing, configuration, and tuning.
Join us to learn about:
Current features in Red Hat Gluster Storage, including 3-way replication, JBOD support, and thin-provisioning.
Features that are in development, including network file system (NFS) support with Ganesha, erasure coding, and cache tiering.
New performance enhancements related to the area of remote directory memory access (RDMA), small-file performance, FUSE caching, and solid state disks (SSD) readiness.
Red Hat Storage Server Administration Deep DiveRed_Hat_Storage
"In this session for administrators of all skill levels, you’ll get a deep technical dive into Red Hat Storage Server and GlusterFS administration.
We’ll start with the basics of what scale-out storage is, and learn about the unique implementation of Red Hat Storage Server and its advantages over legacy and competing technologies. From the basic knowledge and design principles, we’ll move to a live start-to-finish demonstration. Your experience will include:
Building a cluster.
Allocating resources.
Creating and modifying volumes of different types.
Accessing data via multiple client protocols.
A resiliency demonstration.
Expanding and contracting volumes.
Implementing directory quotas.
Recovering from and preventing split-brain.
Asynchronous parallel geo-replication.
Behind-the-curtain views of configuration files and logs.
Extended attributes used by GlusterFS.
Performance tuning basics.
New and upcoming feature demonstrations.
Those new to the scale-out product will leave this session with the knowledge and confidence to set up their first Red Hat Storage Server environment. Experienced administrators will sharpen their skills and gain insights into the newest features. IT executives and managers will gain a valuable overview to help fuel the drive for next-generation infrastructures."
Gluster for Geeks: Performance Tuning Tips & TricksGlusterFS
In this Gluster for Geeks technical webinar, Jacob Shucart, Senior Systems Engineer, will provide useful tips and tricks to make a Gluster cluster meet your performance requirements. He will review considerations for all different phases including planning, configuration, implementation, tuning, and benchmarking.
Topics covered will include:
• Protocols (CIFS, NFS, GlusterFS)
• Hardware configuration
• Tuning parameters
• Performance benchmarks
This session will cover performance-related developments in Red Hat Gluster Storage 3 and share best practices for testing, sizing, configuration, and tuning.
Join us to learn about:
Current features in Red Hat Gluster Storage, including 3-way replication, JBOD support, and thin-provisioning.
Features that are in development, including network file system (NFS) support with Ganesha, erasure coding, and cache tiering.
New performance enhancements related to the area of remote directory memory access (RDMA), small-file performance, FUSE caching, and solid state disks (SSD) readiness.
Red Hat Storage Server Administration Deep DiveRed_Hat_Storage
"In this session for administrators of all skill levels, you’ll get a deep technical dive into Red Hat Storage Server and GlusterFS administration.
We’ll start with the basics of what scale-out storage is, and learn about the unique implementation of Red Hat Storage Server and its advantages over legacy and competing technologies. From the basic knowledge and design principles, we’ll move to a live start-to-finish demonstration. Your experience will include:
Building a cluster.
Allocating resources.
Creating and modifying volumes of different types.
Accessing data via multiple client protocols.
A resiliency demonstration.
Expanding and contracting volumes.
Implementing directory quotas.
Recovering from and preventing split-brain.
Asynchronous parallel geo-replication.
Behind-the-curtain views of configuration files and logs.
Extended attributes used by GlusterFS.
Performance tuning basics.
New and upcoming feature demonstrations.
Those new to the scale-out product will leave this session with the knowledge and confidence to set up their first Red Hat Storage Server environment. Experienced administrators will sharpen their skills and gain insights into the newest features. IT executives and managers will gain a valuable overview to help fuel the drive for next-generation infrastructures."
In this session, we'll discuss new volume types in Red Hat Gluster Storage. We will talk about erasure codes and storage tiers, and how they can work together. Future directions will also be touched on, including rule based classifiers and data transformations.
You will learn about:
How erasure codes lower the cost of storage.
How to configure and manage an erasure coded volume.
How to tune Gluster and Linux to optimize erasure code performance.
Using erasure codes for archival workloads.
How to utilize an SSD inexpensively as a storage tier.
Gluster's erasure code and storage tiering design.
Red Hat Enterprise Linux: Open, hyperconverged infrastructureRed_Hat_Storage
The next generation of IT will be built around flexible infrastructures and operational efficiencies, lowering costs and increasing overall business value in the organization.
A hyperconverged infrastructure that's built on Red Hat supported technologies--including Linux, Gluster storage, and oVirt virtualization manager--will run on commodity x86 servers using the performance of local storage, to deliver a cost-effective, modular, highly scalable, and secure hyperconverged solution.
Red Hat Gluster Storage, Container Storage and CephFS PlansRed_Hat_Storage
At Red Hat Storage Day New York on 1/19/16, Red Hat's Sayan Saha took attendees through an overview of Red Hat Gluster Storage that included future plans for the product, Red Hat's plans for container storage, and the company's plans for CephFS.
In this session, we'll discuss new volume types in Red Hat Gluster Storage. We will talk about erasure codes and storage tiers, and how they can work together. Future directions will also be touched on, including rule based classifiers and data transformations.
You will learn about:
How erasure codes lower the cost of storage.
How to configure and manage an erasure coded volume.
How to tune Gluster and Linux to optimize erasure code performance.
Using erasure codes for archival workloads.
How to utilize an SSD inexpensively as a storage tier.
Gluster's erasure code and storage tiering design.
Red Hat Enterprise Linux: Open, hyperconverged infrastructureRed_Hat_Storage
The next generation of IT will be built around flexible infrastructures and operational efficiencies, lowering costs and increasing overall business value in the organization.
A hyperconverged infrastructure that's built on Red Hat supported technologies--including Linux, Gluster storage, and oVirt virtualization manager--will run on commodity x86 servers using the performance of local storage, to deliver a cost-effective, modular, highly scalable, and secure hyperconverged solution.
Red Hat Gluster Storage, Container Storage and CephFS PlansRed_Hat_Storage
At Red Hat Storage Day New York on 1/19/16, Red Hat's Sayan Saha took attendees through an overview of Red Hat Gluster Storage that included future plans for the product, Red Hat's plans for container storage, and the company's plans for CephFS.
This is the presentation given during CentOS Dojo Bangalore.
The slides are originally authored by Vijay Bellur, Lalatendu Mohanty. Added a few slides at the end for CentOS setup.
Webinar: OpenEBS - Still Free and now FASTEST Kubernetes storageMayaData Inc
Webinar Session - https://youtu.be/_5MfGMf8PG4
In this webinar, we share how the Container Attached Storage pattern makes performance tuning more tractable, by giving each workload its own storage system, thereby decreasing the variables needed to understand and tune performance.
We then introduce MayaStor, a breakthrough in the use of containers and Kubernetes as a data plane. MayaStor is the first containerized data engine available that delivers near the theoretical maximum performance of underlying systems. MayaStor performance scales with the underlying hardware and has been shown, for example, to deliver in excess of 10 million IOPS in a particular environment.
OSBConf 2015 | Scale out backups with bareos and gluster by niels de vosNETWAYS
During this talk, Niels will explain the basics of Gluster and show how Bareos integrates with it. Gluster provides a Software Defined Storage environment that can scale-out when the backup storage needs to grow. With a live demonstration Niels shows how simple it is to setup a small Gluster environment and configure Bareos to use the native Gluster protocol.
Open Source Investments in Mainframe Through the Next Generation - Showcasing...Open Mainframe Project
In it's 3rd year, the Open Mainframe Project continues to invest in the open source ecosystem on mainframe through it's summer internship program. This year's class focused on improving mainframe open source packaging and support of modern technologies such as Cloud Foundry and Kubernetes.
In this session, interns will present their work and experience in working in the internship program.
Storage is one of the main 3 pillars of any data center, along with compute and networking.
OpenStack provides flexibility and automation for storage provisioning, no matter if one uses iSCSI integrated with Cinder or Ceph for block and object storage.
But what about performance? How can one enjoy storage flexibility without compromising on state of the art, low-latency, high-throughput storage, that is required by today’s applications?
In this session, we will present three storage solutions for OpenStack and how they can be accelerated natively in OpenStack with Remote Direct memory Access (RDMA) technology.
Join us to learn how RDMA boosts storage performance in the cloud.
MayaData Datastax webinar - Operating Cassandra on Kubernetes with the help ...MayaData Inc
In this webinar experts from DataStax - the lead developer of Cassandra - and from MayaData - the lead developer of OpenEBS and LitmusChaos - will discuss and demonstrate ways to ensure the ease of use and resilience of Cassandra on Kubernetes.
Topics to be discussed and demonstrated include:
Provisioning underlying storage - how to make it consistent irrespective of the underlying hardware or cloud? Are there are ever reasons to have the storage replicate across nodes or is dynamic LocalPV the best choice in all cases?
Cass Operator - DataStax Kubernetes Operator for Apache Cassandra
Resilience - how to proactively assess the overall environment including the underlying Kubernetes with the help of Litmus
Service Discovery with Consul - Arunvel Arunachalam Neependra Khare
Service Discovery with Consul - Arunvel Arunachalam as a part of Kubernetes & Cloud Native Online meetup
https://www.meetup.com/k8s-cloudnative-online/events/269930039/
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
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Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
UiPath Test Automation using UiPath Test Suite series, part 4DianaGray10
Welcome to UiPath Test Automation using UiPath Test Suite series part 4. In this session, we will cover Test Manager overview along with SAP heatmap.
The UiPath Test Manager overview with SAP heatmap webinar offers a concise yet comprehensive exploration of the role of a Test Manager within SAP environments, coupled with the utilization of heatmaps for effective testing strategies.
Participants will gain insights into the responsibilities, challenges, and best practices associated with test management in SAP projects. Additionally, the webinar delves into the significance of heatmaps as a visual aid for identifying testing priorities, areas of risk, and resource allocation within SAP landscapes. Through this session, attendees can expect to enhance their understanding of test management principles while learning practical approaches to optimize testing processes in SAP environments using heatmap visualization techniques
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1. Insights into SAP testing best practices
2. Heatmap utilization for testing
3. Optimization of testing processes
4. Demo
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Execution from the test manager
Orchestrator execution result
Defect reporting
SAP heatmap example with demo
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Deepak Rai, Automation Practice Lead, Boundaryless Group and UiPath MVP
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Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
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GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024Neo4j
Neha Bajwa, Vice President of Product Marketing, Neo4j
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GraphSummit Singapore | The Art of the Possible with Graph - Q2 2024
Performance characterization in large distributed file system with gluster fs
1. The Future of Storage is Open for Business 4
Highly scalable storage
Multiple peta-byte clusters
Geo-replication to disperse data
Scale-up and scale-out
No metadata bottlenecks – uses
algorithmic approach
Highly cost-effective
Leverages commodity x86 servers
No SAN
Software only
Process data and analytics on storage
node
Highly Flexible
Physical, Virtual, Cloud and Hybrid
deployment models
File and Object access protocols
No Lock-In
Deployment Agnostic
Deploy on-premise, in the public cloud
or a hybrid setup.
Open & standards based
NFS, CIFS, POSIX
REST
GlusterFS Architecture – key value propositions
2. The Future of Storage is Open for Business 5
GlusterFS Features
➢ Unidirectional Asynchronous replication.
➢ Directory and Volume Quotas
➢ Read-only and WORM volumes.
➢ Directory Quotas.
➢ Block Device
➢ io statistics
➢ Multi-tenancy, encryption, compression - WIP.
3. The Future of Storage is Open for Business 6
Use Cases - Current
➢ Unstructured data storage
➢ Archival
➢ Disaster Recovery
➢ Virtual Machine Image Store
➢ Cloud Storage for Service Providers.
➢ Content Cloud
4. The Future of Storage is Open for Business 7
GlusterFS concepts
5. The Future of Storage is Open for Business 8
Bricks
Trusted Storage Pool (cluster) is a collection of storage servers.
Trusted Storage Pool is formed by invitation – you “probe” a new
member from the cluster and not vice versa.
Logical partition for all data and management operations.
Membership information used for determining quorum.
Members can be dynamically added and removed from the pool.
GlusterFS concepts – Trusted Storage Pool
6. The Future of Storage is Open for Business 9
BricksGlusterFS concepts – Trusted Storage Pool
Node1 Node2
Probe
Probe
accepted
Node 1 and Node 2 are peers in a trusted storage pool
Node2Node1
7. The Future of Storage is Open for Business 10
BricksGlusterFS concepts – Trusted Storage Pool
Node1 Node2 Node3Node2Node1 Trusted Storage Pool
Node3Node2Node1
Detach
8. The Future of Storage is Open for Business 11
Bricks
A brick is the combination of a node and an export directory – for e.g.
hostname:/dir
Each brick inherits limits of the underlying filesystem
No limit on the number bricks per node
Ideally, each brick in a cluster should be of the same size
/export3 /export3 /export3
Storage Node
/export1
Storage Node
/export2
/export1
/export2
/export4
/export5
Storage Node
/export1
/export2
3 bricks 5 bricks 3 bricks
GlusterFS concepts - Bricks
9. The Future of Storage is Open for Business 12
BricksGlusterFS concepts - Volumes
➢ A volume is a logical collection of bricks.
➢ Volume is identified by an administrator provided name.
➢Volume is a mountable entity and the volume name is
provided at the time of mounting.
➢ mount -t glusterfs server1:/<volname> /my/mnt/point
➢ Bricks from the same node can be part of different
volumes
10. The Future of Storage is Open for Business 13
BricksGlusterFS concepts - Volumes
Node2Node1 Node3
/export/brick1
/export/brick2
/export/brick1
/export/brick2
/export/brick1
/export/brick2
music
Videos
11. The Future of Storage is Open for Business 14
Volume Types
➢Type of a volume is specified at the time of volume
creation
➢ Volume type determines how and where data is placed
➢ Following volume types are supported in glusterfs:
a) Distribute
b) Stripe
c) Replication
d) Distributed Replicate
e) Striped Replicate
f) Distributed Striped Replicate
12. The Future of Storage is Open for Business 15
Distributed Volume
➢Distributes files across various bricks of the volume.
➢Directories are present on all bricks of the volume.
➢Single brick failure will result in loss of data availability.
➢Removes the need for an external meta data server.
13. The Future of Storage is Open for Business 16
How does a replicated volume work?
14. The Future of Storage is Open for Business 17
Access Mechanisms:
Gluster volumes can be accessed via the following
mechanisms:
➢ FUSE based Native protocol
➢ NFS
➢ SMB
➢ libgfapi
➢ ReST
➢ HDFS
15. The Future of Storage is Open for Business 18
Access Mechanisms - How does FUSE work ?
16. The Future of Storage is Open for Business 19
Access Mechanisms
smbd
(CIFS)
VFS
FUSE
glusterfs
client processLinux kernel
other RHS servers...
RHS
server
Swift
NFS V3 clientsWindows HTTP clients
glusterfsd
brick server
App RHS
client
qemu
(KVM)
Hadoop
17. The Future of Storage is Open for Business 20
FUSE based native access
19. The Future of Storage is Open for Business 22
ReST based access
20. The Future of Storage is Open for Business 23
libgfapi
➢Exposes APIs for accessing Gluster volumes.
➢Reduces context switches.
➢Qemu integrated with libgfapi.
➢Integration of samba with libgfapi in progress.
➢Both sync and async interfaces available.
➢Emerging bindings for various languages.
21. The Future of Storage is Open for Business 24
smbd
(CIFS)
VFS
FUSE
glusterfs
client processLinux kernel
other RHS servers...
RHS
server
Swift
NFS V3 clientsWindows HTTP clients
glusterfsd
brick server
App
qemu
(KVM)
Hadoop
libgfapi
22. The Future of Storage is Open for Business 25
Translators in GlusterFS
➢Building blocks for a GlusterFS process.
➢Based on Translators in GNU HURD.
➢Each translator is a functional unit.
➢Translators can be stacked together for
achieving desired functionality.
➢ Translators are deployment agnostic – can
be loaded in either the client or server stacks.
23. The Future of Storage is Open for Business 26
VFS
Server
I/O Cache
Distribute / Stripe
POSIX
Ext4 Ext4Ext4
POSIX POSIX
Brick 1
ServerServer
G
lusterFS
C
lient
Read Ahead
Brick 2 Brick n-1
Gluster Server
Replicate
Ext4
POSIX
Server
Brick n
Replicate
Customizable GlusterFS Client/Server Stack
Client
Gluster Server
Client
GigE, 10GigE – TCPIP / InfiniBand – RDMA
Gluster ServerGluster Server
Client Client
24. The Future of Storage is Open for Business 27
Provisioning GlusterFS
➢ design -> install -> verify -> monitor
➢ design principles:
➢ balanced hardware configuration
➢ Is the hardware sufficient ?
➢ do not under fund network, cheapest of three CPU, Storage and Network
➢ limited bricks/volume -> make bricks big
➢ file size distribution affects bottleneck type
➢ network traffic increase for non-native protocols
➢ extra replication traffic for writes
➢ install principles:
➢ provision network for your use case
➢ configure storage to be future-ready
25. The Future of Storage is Open for Business 28
Recommended storage brick configuration (With XFS)
➢ 12 drives/RAID6 LUN, 1 LUN / brick
➢ hardware RAID stripe size 256 KB (default 64
KB)
➢ pvcreate –dataalignment 2560k
➢ mkfs.xfs -i size=512 -n size=8192 -d
su=256k,sw=10
➢ /dev/vg_bricks/lvN
➢ mount options: inode64,noatime
26. The Future of Storage is Open for Business 29
Deploying network
➢ if non-native protocol only, separate Gluster and non-Gluster
traffic onto separate VLANs
➢ isolates self-heal and rebalance traffic
➢ separates replica traffic from user traffic
➢ jumbo frames – improve throughput, but requires switch
configuration
➢ bisection bandwidth – Gluster doesn't respect rack boundaries
27. The Future of Storage is Open for Business 30
Capturing perf. problems onsite
➢ top utility – press H to show per-thread CPU utilization, will detect
“hot-thread” problems where thread is using up its core
➢ NFS: nfsiostat and nfsstat utilities
➢ gluster volume profile – shows latency, throughput for Gluster
RPC operations
➢ gluster volume top – shows which files, servers are hot
➢ Wireshark Gluster plug-in – isolates problems
28. The Future of Storage is Open for Business 31
Resources
Mailing lists:
gluster-users@gluster.org
gluster-devel@nongnu.org
IRC:
#gluster and #gluster-dev on freenode
Links:
http://www.gluster.org
http://hekafs.org
http://forge.gluster.org
http://www.gluster.org/community/documentation/index.php/Arch
29. The Future of Storage is Open for Business 32
Questions?
Thank You!