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<title>Running ยท NATS</title>
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<li class="chapter " data-level="1.1" data-path="../../">
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Introduction
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What's New in 2.0
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FAQ
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nats.io
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<li class="header">Concepts</li>
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What is NATS
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Subject-Based Messaging
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Publish-Subscribe
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Request-Reply
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Queue Groups
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Acknowledgements
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Sequence Numbers
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<li class="header">Developing With NATS</li>
<li class="chapter " data-level="3.1" data-path="../../developer/">
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Introduction
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<li class="chapter " data-level="3.2" data-path="../../developer/connecting/intro.html">
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Connecting
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<li class="chapter " data-level="3.2.1" data-path="../../developer/connecting/default_server.html">
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Connecting to the Default Server
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Connecting to a Specific Server
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Connecting to a Cluster
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Setting a Connect Timeout
</a>
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<li class="chapter " data-level="3.2.5" data-path="../../developer/connecting/pingpong.html">
<a href="../../developer/connecting/pingpong.html">
Ping/Pong Protocol
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<li class="chapter " data-level="3.2.6" data-path="../../developer/connecting/protocol.html">
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Controlling the Client/Server Protocol
</a>
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<li class="chapter " data-level="3.2.7" data-path="../../developer/connecting/noecho.html">
<a href="../../developer/connecting/noecho.html">
Turning Off Echo'd Messages
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.3" data-path="../../developer/reconnect/intro.html">
<a href="../../developer/reconnect/intro.html">
Automatic Reconnections
</a>
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<li class="chapter " data-level="3.3.1" data-path="../../developer/reconnect/disable.html">
<a href="../../developer/reconnect/disable.html">
Disabling Reconnect
</a>
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<li class="chapter " data-level="3.3.2" data-path="../../developer/reconnect/max.html">
<a href="../../developer/reconnect/max.html">
Set the Number of Reconnect Attempts
</a>
</li>
<li class="chapter " data-level="3.3.3" data-path="../../developer/reconnect/wait.html">
<a href="../../developer/reconnect/wait.html">
Pausing Between Reconnect Attempts
</a>
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<li class="chapter " data-level="3.3.4" data-path="../../developer/reconnect/random.html">
<a href="../../developer/reconnect/random.html">
Avoiding the Thundering Herd
</a>
</li>
<li class="chapter " data-level="3.3.5" data-path="../../developer/reconnect/events.html">
<a href="../../developer/reconnect/events.html">
Listening for Reconnect Events
</a>
</li>
<li class="chapter " data-level="3.3.6" data-path="../../developer/reconnect/buffer.html">
<a href="../../developer/reconnect/buffer.html">
Buffering Messages During Reconnect Attempts
</a>
</li>
</ul>
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<li class="chapter " data-level="3.4" data-path="../../developer/security/intro.html">
<a href="../../developer/security/intro.html">
Securing Connections
</a>
<ul class="articles">
<li class="chapter " data-level="3.4.1" data-path="../../developer/security/userpass.html">
<a href="../../developer/security/userpass.html">
Authenticating with a User and Password
</a>
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<li class="chapter " data-level="3.4.2" data-path="../../developer/security/token.html">
<a href="../../developer/security/token.html">
Authenticating with a Token
</a>
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<li class="chapter " data-level="3.4.3" data-path="../../developer/security/nkey.html">
<a href="../../developer/security/nkey.html">
Authenticating with an NKey
</a>
</li>
<li class="chapter " data-level="3.4.4" data-path="../../developer/security/creds.html">
<a href="../../developer/security/creds.html">
Authenticating with a Credentials File
</a>
</li>
<li class="chapter " data-level="3.4.5" data-path="../../developer/security/tls.html">
<a href="../../developer/security/tls.html">
Encrypting Connections with TLS
</a>
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</ul>
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<li class="chapter " data-level="3.5" data-path="../../developer/receiving/intro.html">
<a href="../../developer/receiving/intro.html">
Receiving Messages
</a>
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<li class="chapter " data-level="3.5.1" data-path="../../developer/receiving/sync.html">
<a href="../../developer/receiving/sync.html">
Synchronous Subscriptions
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<a href="../../developer/receiving/async.html">
Asynchronous Subscriptions
</a>
</li>
<li class="chapter " data-level="3.5.3" data-path="../../developer/receiving/unsubscribing.html">
<a href="../../developer/receiving/unsubscribing.html">
Unsubscribing
</a>
</li>
<li class="chapter " data-level="3.5.4" data-path="../../developer/receiving/unsub_after.html">
<a href="../../developer/receiving/unsub_after.html">
Unsubscribing After N Messages
</a>
</li>
<li class="chapter " data-level="3.5.5" data-path="../../developer/receiving/reply.html">
<a href="../../developer/receiving/reply.html">
Replying to a Message
</a>
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<li class="chapter " data-level="3.5.6" data-path="../../developer/receiving/wildcards.html">
<a href="../../developer/receiving/wildcards.html">
Wildcard Subscriptions
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<li class="chapter " data-level="3.5.7" data-path="../../developer/receiving/queues.html">
<a href="../../developer/receiving/queues.html">
Queue Subscriptions
</a>
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<li class="chapter " data-level="3.5.8" data-path="../../developer/receiving/drain.html">
<a href="../../developer/receiving/drain.html">
Draining Messages Before Disconnect
</a>
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<li class="chapter " data-level="3.5.9" data-path="../../developer/receiving/structure.html">
<a href="../../developer/receiving/structure.html">
Structured Data
</a>
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</ul>
</li>
<li class="chapter " data-level="3.6" data-path="../../developer/sending/intro.html">
<a href="../../developer/sending/intro.html">
Sending Messages
</a>
<ul class="articles">
<li class="chapter " data-level="3.6.1" data-path="../../developer/sending/replyto.html">
<a href="../../developer/sending/replyto.html">
Including a Reply Subject
</a>
</li>
<li class="chapter " data-level="3.6.2" data-path="../../developer/sending/request_reply.html">
<a href="../../developer/sending/request_reply.html">
Request-Reply Semantics
</a>
</li>
<li class="chapter " data-level="3.6.3" data-path="../../developer/sending/caches.html">
<a href="../../developer/sending/caches.html">
Caches, Flush and Ping
</a>
</li>
<li class="chapter " data-level="3.6.4" data-path="../../developer/sending/structure.html">
<a href="../../developer/sending/structure.html">
Sending Structured Data
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.7" data-path="../../developer/events/intro.html">
<a href="../../developer/events/intro.html">
Monitoring the Connection
</a>
<ul class="articles">
<li class="chapter " data-level="3.7.1" data-path="../../developer/events/events.html">
<a href="../../developer/events/events.html">
Listen for Connection Events
</a>
</li>
<li class="chapter " data-level="3.7.2" data-path="../../developer/events/slow.html">
<a href="../../developer/events/slow.html">
Slow Consumers
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="3.8" data-path="../../developer/tutorials/intro.html">
<a href="../../developer/tutorials/intro.html">
Tutorials
</a>
<ul class="articles">
<li class="chapter " data-level="3.8.1" data-path="../../developer/tutorials/pubsub.html">
<a href="../../developer/tutorials/pubsub.html">
Explore NATS Pub/Sub
</a>
</li>
<li class="chapter " data-level="3.8.2" data-path="../../developer/tutorials/reqreply.html">
<a href="../../developer/tutorials/reqreply.html">
Explore NATS Request/Reply
</a>
</li>
<li class="chapter " data-level="3.8.3" data-path="../../developer/tutorials/queues.html">
<a href="../../developer/tutorials/queues.html">
Explore NATS Queueing
</a>
</li>
<li class="chapter " data-level="3.8.4" data-path="../../developer/tutorials/custom_dialer.html">
<a href="../../developer/tutorials/custom_dialer.html">
Advanced Connect and Custom Dialer in Go
</a>
</li>
</ul>
</li>
<li class="header">NATS Server</li>
<li class="chapter " data-level="4.1" data-path="../../nats_server/installation.html">
<a href="../../nats_server/installation.html">
Installing
</a>
</li>
<li class="chapter " data-level="4.2" data-path="../../nats_server/running.html">
<a href="../../nats_server/running.html">
Running
</a>
<ul class="articles">
<li class="chapter " data-level="4.2.1" data-path="../../nats_server/windows_srv.html">
<a href="../../nats_server/windows_srv.html">
Window Service
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.3" data-path="../../nats_server/clients.html">
<a href="../../nats_server/clients.html">
Clients
</a>
</li>
<li class="chapter " data-level="4.4" data-path="../../nats_server/flags.html">
<a href="../../nats_server/flags.html">
Flags
</a>
</li>
<li class="chapter " data-level="4.5" data-path="../../nats_server/configuration.html">
<a href="../../nats_server/configuration.html">
Configuration
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1" data-path="../../nats_server/securing_nats.html">
<a href="../../nats_server/securing_nats.html">
Securing NATS
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1.1" data-path="../../nats_server/tls.html">
<a href="../../nats_server/tls.html">
Enabling TLS
</a>
</li>
<li class="chapter " data-level="4.5.1.2" data-path="../../nats_server/auth_intro.html">
<a href="../../nats_server/auth_intro.html">
Authentication
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.1.2.1" data-path="../../nats_server/tokens.html">
<a href="../../nats_server/tokens.html">
Tokens
</a>
</li>
<li class="chapter " data-level="4.5.1.2.2" data-path="../../nats_server/username_password.html">
<a href="../../nats_server/username_password.html">
Username/Password
</a>
</li>
<li class="chapter " data-level="4.5.1.2.3" data-path="../../nats_server/tls_mutual_auth.html">
<a href="../../nats_server/tls_mutual_auth.html">
TLS Authentication
</a>
</li>
<li class="chapter " data-level="4.5.1.2.4" data-path="../../nats_server/nkey_auth.html">
<a href="../../nats_server/nkey_auth.html">
NKeys
</a>
</li>
<li class="chapter " data-level="4.5.1.2.5" data-path="../../nats_server/accounts.html">
<a href="../../nats_server/accounts.html">
Accounts
</a>
</li>
<li class="chapter " data-level="4.5.1.2.6" data-path="../../nats_server/jwt_auth.html">
<a href="../../nats_server/jwt_auth.html">
JWTs
</a>
</li>
<li class="chapter " data-level="4.5.1.2.7" data-path="../../nats_server/auth_timeout.html">
<a href="../../nats_server/auth_timeout.html">
Authentication Timeout
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.1.3" data-path="../../nats_server/authorization.html">
<a href="../../nats_server/authorization.html">
Authorization
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.2" data-path="../../nats_server/clustering.html">
<a href="../../nats_server/clustering.html">
Clustering
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.2.1" data-path="../../nats_server/cluster_config.html">
<a href="../../nats_server/cluster_config.html">
Configuration
</a>
</li>
<li class="chapter " data-level="4.5.2.2" data-path="../../nats_server/cluster_tls.html">
<a href="../../nats_server/cluster_tls.html">
TLS Authentication
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.3" data-path="../../gateways/">
<a href="../../gateways/">
Gateways
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.3.1" data-path="../../gateways/gateway.html">
<a href="../../gateways/gateway.html">
Configuration
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.4" data-path="../../leafnodes/">
<a href="../../leafnodes/">
Leaf Nodes
</a>
<ul class="articles">
<li class="chapter " data-level="4.5.4.1" data-path="../../leafnodes/leafnode_conf.html">
<a href="../../leafnodes/leafnode_conf.html">
Configuration
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.5.5" data-path="../../nats_server/logging.html">
<a href="../../nats_server/logging.html">
Logging
</a>
</li>
<li class="chapter " data-level="4.5.6" data-path="../../nats_server/monitoring.html">
<a href="../../nats_server/monitoring.html">
Monitoring
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="4.6" data-path="../../nats_admin/">
<a href="../../nats_admin/">
Managing A NATS Server
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.1" data-path="../../nats_admin/upgrading_cluster.html">
<a href="../../nats_admin/upgrading_cluster.html">
Upgrading a Cluster
</a>
</li>
<li class="chapter " data-level="4.6.2" data-path="../../nats_admin/slow_consumers.html">
<a href="../../nats_admin/slow_consumers.html">
Slow Consumers
</a>
</li>
<li class="chapter " data-level="4.6.3" data-path="../../nats_admin/signals.html">
<a href="../../nats_admin/signals.html">
Signals
</a>
</li>
<li class="chapter " data-level="4.6.4" data-path="../../sys_accounts/">
<a href="../../sys_accounts/">
System Accounts
</a>
<ul class="articles">
<li class="chapter " data-level="4.6.4.1" data-path="../../sys_accounts/sys_accounts.html">
<a href="../../sys_accounts/sys_accounts.html">
Configuration
</a>
</li>
</ul>
</li>
</ul>
</li>
<li class="chapter " data-level="4.7" data-path="../../nats_docker/">
<a href="../../nats_docker/">
NATS and Docker
</a>
<ul class="articles">
<li class="chapter " data-level="4.7.1" data-path="../../nats_docker/nats-docker-tutorial.html">
<a href="../../nats_docker/nats-docker-tutorial.html">
Tutorial
</a>
</li>
<li class="chapter " data-level="4.7.2" data-path="../../nats_docker/docker_swarm.html">
<a href="../../nats_docker/docker_swarm.html">
Docker Swarm
</a>
</li>
</ul>
</li>
<li class="header">NATS Tools</li>
<li class="chapter " data-level="5.1" data-path="../../nats_tools/mkpasswd.html">
<a href="../../nats_tools/mkpasswd.html">
mkpasswd
</a>
</li>
<li class="chapter " data-level="5.2" data-path="../../nats_tools/nk.html">
<a href="../../nats_tools/nk.html">
nk
</a>
</li>
<li class="chapter " data-level="5.3" data-path="../../nats_tools/nsc/">
<a href="../../nats_tools/nsc/">
nsc
</a>
<ul class="articles">
<li class="chapter " data-level="5.3.1" data-path="../../nats_tools/nsc/nsc.html">
<a href="../../nats_tools/nsc/nsc.html">
Basics
</a>
</li>
<li class="chapter " data-level="5.3.2" data-path="../../nats_tools/nsc/streams.html">
<a href="../../nats_tools/nsc/streams.html">
Streams
</a>
</li>
<li class="chapter " data-level="5.3.3" data-path="../../nats_tools/nsc/services.html">
<a href="../../nats_tools/nsc/services.html">
Services
</a>
</li>
<li class="chapter " data-level="5.3.4" data-path="../../nats_tools/nsc/signing_keys.html">
<a href="../../nats_tools/nsc/signing_keys.html">
Signing Keys
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.4" data-path="../../nats_tools/nas/">
<a href="../../nats_tools/nas/">
nats-account-server
</a>
<ul class="articles">
<li class="chapter " data-level="5.4.1" data-path="../../nats_tools/nas/nas_conf.html">
<a href="../../nats_tools/nas/nas_conf.html">
Basics
</a>
</li>
<li class="chapter " data-level="5.4.2" data-path="../../nats_tools/nas/inspecting_jwts.html">
<a href="../../nats_tools/nas/inspecting_jwts.html">
Inspecting JWTs
</a>
</li>
<li class="chapter " data-level="5.4.3" data-path="../../nats_tools/nas/dir_store.html">
<a href="../../nats_tools/nas/dir_store.html">
Directory Store
</a>
</li>
<li class="chapter " data-level="5.4.4" data-path="../../nats_tools/nas/notifications.html">
<a href="../../nats_tools/nas/notifications.html">
Update Notifications
</a>
</li>
<li class="chapter " data-level="5.4.5" data-path="../../nats_tools/nas/mem_resolver.html">
<a href="../../nats_tools/nas/mem_resolver.html">
Memory Resolver
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.5" data-path="../../nats_tools/nats_top/">
<a href="../../nats_tools/nats_top/">
nats-top
</a>
<ul class="articles">
<li class="chapter " data-level="5.5.1" data-path="../../nats_tools/nats_top/nats-top-tutorial.html">
<a href="../../nats_tools/nats_top/nats-top-tutorial.html">
Tutorial
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="5.6" data-path="../../nats_tools/natsbench.html">
<a href="../../nats_tools/natsbench.html">
nats-bench
</a>
</li>
<li class="header">NATS Streaming Concepts</li>
<li class="chapter " data-level="6.1" data-path="../intro.html">
<a href="../intro.html">
Introduction
</a>
<ul class="articles">
<li class="chapter " data-level="6.1.1" data-path="../relation-to-nats.html">
<a href="../relation-to-nats.html">
Relation to NATS
</a>
</li>
</ul>
</li>
<li class="chapter " data-level="6.2" data-path="../client-connections.html">
<a href="../client-connections.html">
Client Connections
</a>
</li>
<li class="chapter " data-level="6.3" data-path="../channels/channels.html">
<a href="../channels/channels.html">
Channels
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.1" data-path="../channels/message-log.html">
<a href="../channels/message-log.html">
Message Log
</a>
</li>
<li class="chapter " data-level="6.3.2" data-path="../channels/subscriptions/subscriptions.html">
<a href="../channels/subscriptions/subscriptions.html">
Subscriptions
</a>
<ul class="articles">
<li class="chapter " data-level="6.3.2.1" data-path="../channels/subscriptions/regular.html">
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<h1 id="getting-started-with-nats-streaming"><a name="getting-started-with-nats-streaming" class="plugin-anchor" href="#getting-started-with-nats-streaming"><i class="fa fa-link" aria-hidden="true"></i></a>Getting Started with NATS Streaming</h1>
<p>This tutorial demonstrates NATS Streaming using example <a href="https://github.com/nats-io/stan.go.git" target="_blank">Go NATS Streaming clients</a>.</p>
<h2 id="prerequisites"><a name="prerequisites" class="plugin-anchor" href="#prerequisites"><i class="fa fa-link" aria-hidden="true"></i></a>Prerequisites</h2>
<ul>
<li><a href="https://help.github.com/articles/set-up-git/" target="_blank">Set up your Git environment</a>.</li>
<li><a href="https://golang.org/doc/install" target="_blank">Set up your Go environment</a>.</li>
</ul>
<h2 id="setup"><a name="setup" class="plugin-anchor" href="#setup"><i class="fa fa-link" aria-hidden="true"></i></a>Setup</h2>
<p>Download and install the <a href="https://github.com/nats-io/nats-streaming-server/releases" target="_blank">NATS Streaming Server</a>.</p>
<p>Clone the following repositories:</p>
<ul>
<li>NATS Streaming Server: <code>git clone https://github.com/nats-io/nats-streaming-server.git</code></li>
<li>NATS Streaming Client: <code>git clone https://github.com/nats-io/stan.go.git</code></li>
</ul>
<h2 id="start-the-nats-streaming-server"><a name="start-the-nats-streaming-server" class="plugin-anchor" href="#start-the-nats-streaming-server"><i class="fa fa-link" aria-hidden="true"></i></a>Start the NATS Streaming Server</h2>
<p>Two options:</p>
<p>Run the binary that you downloaded, for example: <code>$ ./nats-streaming-server</code></p>
<p>Or, run from source:</p>
<pre class="language-"><code class="lang-sh"><span class="token operator">&gt;</span> <span class="token function">cd</span> <span class="token variable">$GOPATH</span>/src/github.com/nats-io/nats-streaming-server
<span class="token operator">&gt;</span> go run nats-streaming-server.go
</code></pre>
<p>You should see the following, indicating that the NATS Streaming Server is running:</p>
<pre class="language-"><code class="lang-sh"><span class="token operator">&gt;</span> go run nats-streaming-server.go
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426344 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Starting nats-streaming-server<span class="token punctuation">[</span>test-cluster<span class="token punctuation">]</span> version 0.14.2
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426423 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: ServerID: 3fpvAuXHo3C66Rkd4rmfFX
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426440 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Go version: go1.11.10
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426442 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Git commit: <span class="token punctuation">[</span>not set<span class="token punctuation">]</span>
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426932 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> Starting nats-server version 1.4.1
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.426937 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> Git commit <span class="token punctuation">[</span>not set<span class="token punctuation">]</span>
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.427104 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> Listening <span class="token keyword">for</span> client connections on 0.0.0.0:4222
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.427108 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> Server is ready
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.457604 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Recovering the state<span class="token punctuation">..</span>.
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.457614 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: No recovered state
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711407 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Message store is MEMORY
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711465 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: ---------- Store Limits ----------
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711471 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Channels: 100 *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711474 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: --------- Channels Limits --------
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711478 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Subscriptions: 1000 *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711481 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Messages <span class="token keyword">:</span> 1000000 *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711485 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Bytes <span class="token keyword">:</span> 976.56 MB *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711488 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Age <span class="token keyword">:</span> unlimited *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711492 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: Inactivity <span class="token keyword">:</span> unlimited *
<span class="token punctuation">[</span>59232<span class="token punctuation">]</span> 2019/05/22 14:24:54.711495 <span class="token punctuation">[</span>INF<span class="token punctuation">]</span> STREAM: ----------------------------------
</code></pre>
<h2 id="run-the-publisher-client"><a name="run-the-publisher-client" class="plugin-anchor" href="#run-the-publisher-client"><i class="fa fa-link" aria-hidden="true"></i></a>Run the publisher client</h2>
<p>Publish several messages. For each publication you should get a result.</p>
<pre class="language-"><code class="lang-sh"><span class="token operator">&gt;</span> <span class="token function">cd</span> <span class="token variable">$GOPATH</span>/src/github.com/nats-io/stan.go/examples/stan-pub
<span class="token operator">&gt;</span> go run main.go foo <span class="token string">&quot;msg one&quot;</span>
Published <span class="token punctuation">[</span>foo<span class="token punctuation">]</span> <span class="token keyword">:</span> <span class="token string">&apos;msg one&apos;</span>
<span class="token operator">&gt;</span> go run main.go foo <span class="token string">&quot;msg two&quot;</span>
Published <span class="token punctuation">[</span>foo<span class="token punctuation">]</span> <span class="token keyword">:</span> <span class="token string">&apos;msg two&apos;</span>
<span class="token operator">&gt;</span> go run main.go foo <span class="token string">&quot;msg three&quot;</span>
Published <span class="token punctuation">[</span>foo<span class="token punctuation">]</span> <span class="token keyword">:</span> <span class="token string">&apos;msg three&apos;</span>
</code></pre>
<h2 id="run-the-subscriber-client"><a name="run-the-subscriber-client" class="plugin-anchor" href="#run-the-subscriber-client"><i class="fa fa-link" aria-hidden="true"></i></a>Run the subscriber client</h2>
<p>Use the <code>--all</code> flag to receive all published messages.</p>
<pre class="language-"><code class="lang-sh"><span class="token operator">&gt;</span> <span class="token function">cd</span> <span class="token variable">$GOPATH</span>/src/github.com/nats-io/stan.go/examples/stan-sub
<span class="token operator">&gt;</span> go run main.go --all -c test-cluster -id myID foo
Connected to nats://localhost:4222 clusterID: <span class="token punctuation">[</span>test-cluster<span class="token punctuation">]</span> clientID: <span class="token punctuation">[</span>myID<span class="token punctuation">]</span>
subscribing with DeliverAllAvailable
Listening on <span class="token punctuation">[</span>foo<span class="token punctuation">]</span>, clientID<span class="token operator">=</span><span class="token punctuation">[</span>myID<span class="token punctuation">]</span>, qgroup<span class="token operator">=</span><span class="token punctuation">[</span><span class="token punctuation">]</span> durable<span class="token operator">=</span><span class="token punctuation">[</span><span class="token punctuation">]</span>
<span class="token punctuation">[</span><span class="token comment">#1] Received on [foo]: &apos;sequence:1 subject:&quot;foo&quot; data:&quot;msg one&quot; timestamp:1465962202884478817 &apos;</span>
<span class="token punctuation">[</span><span class="token comment">#2] Received on [foo]: &apos;sequence:2 subject:&quot;foo&quot; data:&quot;msg two&quot; timestamp:1465962208545003897 &apos;</span>
<span class="token punctuation">[</span><span class="token comment">#3] Received on [foo]: &apos;sequence:3 subject:&quot;foo&quot; data:&quot;msg three&quot; timestamp:1465962215567601196</span>
</code></pre>
<h2 id="explore-other-subscription-options"><a name="explore-other-subscription-options" class="plugin-anchor" href="#explore-other-subscription-options"><i class="fa fa-link" aria-hidden="true"></i></a>Explore other subscription options</h2>
<pre class="language-"><code class="lang-sh"> --seq <span class="token operator">&lt;</span>seqno<span class="token operator">&gt;</span> Start at seqno
--all Deliver all available messages
--last Deliver starting with last published message
--since <span class="token operator">&lt;</span>duration<span class="token operator">&gt;</span> Deliver messages <span class="token keyword">in</span> last interval <span class="token punctuation">(</span>e.g. 1s, 1hr, https://golang.org/pkg/time/<span class="token comment">#ParseDuration)</span>
--durable <span class="token operator">&lt;</span>name<span class="token operator">&gt;</span> Durable subscriber name
--unsubscribe Unsubscribe the durable on <span class="token keyword">exit</span>
</code></pre>
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return match && decodeURIComponent(match[1].replace(/\+/g, ' '));
}
function docReady() {
window.gitbook.events.bind("page.change", function () {
pageChanged();
});
var searchInput = document.querySelector('#book-search-input input');
if (searchInput) {
searchInput.addEventListener('keyup', function(event) {
if (event.keyCode === 13) {
event.target.blur();
}
});
}
}
function pageChanged() {
var logos = document.querySelectorAll(".nats");
if (logos && logos.length == 0) {
gitbook.toolbar.createButton({
icon: 'nats',
label: 'NATS Home Page',
position: 'right',
onClick: function () {
var win = window.open("https://nats.io/", '_blank');
win.focus();
}
});
}
document.querySelectorAll('.js-copy').forEach(elem => {
elem.addEventListener("click", function () {
var el = this;
var parent = this.parentNode.parentNode;
var code = parent.querySelector('code');
var text = code.textContent || code.innerText;
copyToClipboard(text, el);
})
});
document.querySelectorAll('.api-lang').forEach(elem => {
elem.addEventListener("click", function () {
var curLang = sessionStorage.getItem('nats-api-language');
var lang = this.getAttribute('data-language');
// Stop the infinite loop
if (curLang == lang) {
return;
}
sessionStorage.setItem('nats-api-language', lang); // So we only do this 1x
updateLanguageParameter(lang)
document.querySelectorAll('.api-lang[data-language=' + lang + ']').forEach(elem => {
elem.click();
});
})
});
if (sessionStorage) {
var curLang = sessionStorage.getItem('nats-api-language');
var queryLang = getLanguageParameter();
var lang = curLang;
if (queryLang) { // query takes precedent
lang = queryLang
}
if (lang) {
document.querySelectorAll('.api-lang[data-language=' + lang + ']').forEach(elem => {
elem.click();
});
}
}
setTimeout(function () {
processGraphVizSections();
}, 1);
}
if (document.readyState != 'loading') docReady();
else if (document.addEventListener) document.addEventListener('DOMContentLoaded', docReady);
else document.attachEvent('onreadystatechange', function () {
if (document.readyState == 'complete') docReady();
});
</script>
<!-- Github Buttons -->
<script async defer src="https://buttons.github.io/buttons.js"></script>
<!-- Styles -->
<style>
.nats {
display: inline-block;
width: 16px;
height: 16px;
background: url(https://nats.io/img/nats-icon-color.svg);
background-size: 16px 16px;
background-repeat: no-repeat;
}
div.graphviz {
background: transparent;
border: 0;
padding-top: 15px;
padding-right: 15px;
padding-bottom: 25px;
padding-left: 15px;
text-align: center;
}
code[data-viz] {
display: none;
}
.tab-wrap {
transition: 0.3s box-shadow ease;
border-radius: 6px;
max-width: 100%;
display: flex;
flex-wrap: wrap;
position: relative;
list-style: none;
background-color: #fff;
margin: 20px 0;
/* box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12), 0 1px 2px rgba(0, 0, 0, 0.24);*/
}
.tab-wrap:hover {
box-shadow: 0 12px 23px rgba(0, 0, 0, 0.23), 0 10px 10px rgba(0, 0, 0, 0.19);
}
.tab {
display: none;
}
/* Using scss these would be generated, we have to manually create enough for all tabs, start with 8 */
.tab:checked:nth-of-type(1)~.tab__content:nth-of-type(1) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(2)~.tab__content:nth-of-type(2) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(3)~.tab__content:nth-of-type(3) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(4)~.tab__content:nth-of-type(4) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(5)~.tab__content:nth-of-type(5) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(6)~.tab__content:nth-of-type(6) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(7)~.tab__content:nth-of-type(7) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:checked:nth-of-type(8)~.tab__content:nth-of-type(8) {
opacity: 1;
transition: 0.5s opacity ease-in, 0.8s -webkit-transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease;
transition: 0.5s opacity ease-in, 0.8s transform ease, 0.8s -webkit-transform ease;
position: relative;
top: 0;
z-index: 100;
-webkit-transform: translateY(0px);
transform: translateY(0px);
text-shadow: 0 0 0;
}
.tab:first-of-type:not(:last-of-type)+label {
border-top-right-radius: 0;
border-bottom-right-radius: 0;
}
.tab:not(:first-of-type):not(:last-of-type)+label {
border-radius: 0;
}
.tab:last-of-type:not(:first-of-type)+label {
border-top-left-radius: 0;
border-bottom-left-radius: 0;
}
.tab:checked+label {
background-color: #fff;
box-shadow: 0 -1px 0 #fff inset;
cursor: default;
font-weight: bold;
border: 1px solid #ddd;
border-bottom-color: transparent;
}
.tab:checked+label:hover {
box-shadow: 0 -1px 0 #fff inset;
background-color: #fff;
}
.tab+label {
box-shadow: 0 -1px 0 #eee inset;
border-radius: 6px 6px 0 0;
cursor: pointer;
display: block;
text-decoration: none;
color: #27aae1;
flex-grow: 3;
text-align: center;
-webkit-user-select: none;
-moz-user-select: none;
-ms-user-select: none;
user-select: none;
text-align: center;
transition: 0.3s background-color ease, 0.3s box-shadow ease;
height: 50px;
box-sizing: border-box;
padding: 15px;
}
.tab+label:hover {
background-color: #f9f9f9;
box-shadow: 0 1px 0 #f4f4f4 inset;
}
.tab__content {
padding: 2px 2px;
background-color: transparent;
position: absolute;
width: 100%;
z-index: -1;
opacity: 0;
left: 0;
-webkit-transform: translateY(-3px);
transform: translateY(-3px);
border-radius: 6px;
}
.tab__content pre {
margin-bottom: 0px !important;
}
.toolbar-icons {
display: inline-block;
position: relative;
padding-left: 4px;
}
a.toolbar-icons {
text-decoration: none;
}
.toolbar-icons .mdi {
color: #4183c4;
}
.copy-msg {
color: #4183c4;
}
.pull-right {
float: right !important;
}
.pull-left {
float: left !important;
}
</style>
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<script async src="https://www.googletagmanager.com/gtag/js?id=UA-111730698-1"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'UA-111730698-1');
</script>
<script src="../../gitbook/gitbook.js"></script>
<script src="../../gitbook/theme.js"></script>
<script src="../../gitbook/gitbook-plugin-toggle-chapters/toggle.js"></script>
<script src="../../gitbook/gitbook-plugin-edit-link/plugin.js"></script>
<script src="../../gitbook/gitbook-plugin-search/search-engine.js"></script>
<script src="../../gitbook/gitbook-plugin-search/search.js"></script>
<script src="../../gitbook/gitbook-plugin-lunr/lunr.min.js"></script>
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