NATS Messaging System

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SKU
NATS

NATS is an open source, lightweight and high-performance messaging system.

It is ideal for distributed systems and supports modern cloud architectures and pub-sub, request-reply and queuing models.


* Admin Package included: OpenVPN, SSH, SFTP, OS root access

NATS is a family of open source products that are tightly integrated but can be deployed independently.

NATS is being deployed globally by thousands of companies, spanning innovative use-cases including: Mobile apps, Microservices and Cloud Native, and IoT.

NATS is also available as a hosted solution.

The core NATS Server acts as a central nervous system for building distributed applications.

There are dozens of clients ranging from Java, .NET, to GO.

NATS Streaming extends the platform to provide for real-time streaming & big data use-cases.

NATS was created by Derek Collison, Founder and CEO at Synadia in response to the market need for a simple and high performance messaging solution.

NATS is currently deployed in some of the largest cloud platforms, including: VMware, CloudFoundry, Baidu, Siemens, and GE.

NATS is available under the Apache-2.0 Open Source License.

NATS features

NATS provides the following unique features:

  • Pure pub-sub
    • Never assumes the audience
    • Always “on” dial tone
  • Clustered mode server
    • NATS servers can be clustered together
    • Distributed queueing across clusters
    • Cluster-aware clients
  • Auto-pruning of subscribers
    • To support scaling, NATS provides for auto-pruning of client connections
    • If a client app is slow consuming messages, NATS will cut off the client
    • If a client is not responsive within the ping-pong interval, the server cuts it off
    • Clients implement retry logic
  • Text-based protocol
    • Makes it easy to get started with new clients
    • Does not affect server performance
    • Can Telnet directly to the server and send messages across the wire
  • Multiple qualities of service (QoS)
    • At-most-once delivery (TCP level reliability) - NATS delivers messages to immediately eligible subscribers but does not persist the messages
    • At-least-once delivery (via NATS Streaming) - Messages persisted until delivery to subscribers has been confirmed, or timeout expires, or storage exhausted
  • Durable subscriptions (via NATS Streaming)
    • Subscription delivery state is maintained so that durable subscriptions may pick up where they left off during a previous session
  • Event streaming service (via NATS Streaming)
    • Messages may be persisted to memory, file, or other secondary storage for later replay by time, sequence number, or relative offset
  • Last/Initial value caching (via NATS Streaming)
    • Subscription delivery can begin with the most recently published message for a subscription

Your Virtual Machine Specs

Your NATS Server will be running on an isolated and secure Virtual Machine with the following configuration 1 :


  • CPU: 1 vCPU on 7th Generation Intel® Core™ i5-7260U Physical Processor(s)
    • Base Frequency: 2.20 GHz
    • Max Turbo Frequency: 3.40 GHz
  • Memory: 1024 MB on 32 GB DDR4-2133 Physical Memory Chip(s)
    • DDR4-2133 1.2V SO-DIMM
    • Max Memory Bandwidth: 34.1 GB/s
  • Disk Size: 16.06 GB on 1TB M.2. SSD Physical Storage Chip(s)
    • M.2 Solid-State Drive (SSD)
    • Sequential Read: 530 MB/s
    • Sequential Write: 510 MB/s
    • Random Read IOPS: 92 K
    • Random Write IOPS: 83 K

Note 1 : Virtual Machine Resources are already optimized for performance. Under extreme usage or circumstances, more resources can be easily acquired via our Add-ons section.

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