Versions Type Operating system Requirements Dependencies Configuration Input data Local log file Licenses Changelog See also

IoT SiteWise publisher

The IoT SiteWise publisher component (aws.iot.SiteWiseEdgePublisher) enables AWS IoT SiteWise gateways to export data from the edge to the AWS Cloud.

For more information about AWS IoT SiteWise gateways, see Using AWS IoT SiteWise at the edge in the AWS IoT SiteWise User Guide.

Topics

Versions
Type
Operating system
Requirements
Dependencies
Configuration
Input data
Local log file
Licenses
Changelog
See also

Versions

This component has the following versions:

2.2.x
2.1.x
2.0.x

Type

This component is a generic component (aws.greengrass.generic). The Greengrass nucleus runs the component's lifecycle scripts.

For more information, see Component types.

Operating system

This component can be installed on core devices that run the following operating systems:

Linux
Windows

Requirements

This component has the following requirements:

The Greengrass core device must run on one of the following platforms:
- OS: Ubuntu 20.04 or 18.04
  
  Architecture: x86_64 (AMD64)
- OS: Red Hat Enterprise Linux (RHEL) 8
  
  Architecture: x86_64 (AMD64)
- OS: Amazon Linux 2
  
  Architecture: x86_64 (AMD64)
- OS: Windows Server 2019 or later
  
  Architecture: x86_64 (AMD64)
The Greengrass core device must connect to the Internet.

The Greengrass core device must be authorized to perform the iotsitewise:BatchPutAssetPropertyValue action. For more information, see Authorize core devices to interact with AWS services.

Example permissions policy


{
    "Version": "2012-10-17",
    "Statement": [
        {
            "Effect": "Allow",
            "Action": "iotsitewise:BatchPutAssetPropertyValue",
            "Resource": "*"
        }
    ]
}

Endpoints and ports

This component must be able to perform outbound requests to the following endpoints and ports, in addition to endpoints and ports required for basic operation. For more information, see Allow device traffic through a proxy or firewall.

Endpoint	Port	Required	Description
`data.iotsitewise.region.amazonaws.com`	443	Yes	Publish data to AWS IoT SiteWise.

Dependencies

When you deploy a component, AWS IoT Greengrass also deploys compatible versions of its dependencies. This means that you must meet the requirements for the component and all of its dependencies to successfully deploy the component. This section lists the dependencies for the released versions of this component and the semantic version constraints that define the component versions for each dependency. You can also view the dependencies for each version of the component in the AWS IoT Greengrass console. On the component details page, look for the Dependencies list.

The following table lists the dependencies for versions 2.0.x to 2.2.x of this component.

Dependency	Compatible versions	Dependency type
Greengrass nucleus	>=2.3.0<3.0.0	Hard
Stream manager	>=2.0.10<3.0.0	Hard

For more information about component dependencies, see the component recipe reference.

Configuration

This component doesn't have any configuration parameters.

You can use the AWS IoT SiteWise console or API to configure the IoT SiteWise publisher component. For more information, see Step 3: Configure publisher - optional in the AWS IoT SiteWise User Guide.

Input data

This component reads BatchPutAssetPropertyValue messages from AWS IoT Greengrass stream manager. For more information, see BatchPutAssetPropertyValue in the AWS IoT SiteWise API Reference.

Local log file

This component uses the following log file.

To view this component's logs

Run the following command on the core device to view this component's log file in real time. Replace /greengrass/v2 or C:\greengrass\v2 with the path to the AWS IoT Greengrass root folder.
Linux
```
sudo tail -f /greengrass/v2/logs/aws.iot.SiteWiseEdgePublisher.log
```
Windows (PowerShell)
```
Get-Content C:\greengrass\v2\logs\aws.iot.SiteWiseEdgePublisher.log -Tail 10 -Wait
```

Licenses

This component is released under the Greengrass Core Software License Agreement.

Changelog

The following table describes the changes in each version of the component.

Version	Changes
2.2.3	Bug fixes and improvements Removes retry for generic exception which was not in the retryable exception list.
2.2.2	Bug fixes and improvements Reintroduces data upload support to AWS IoT SiteWise through an HTTP proxy server.
2.2.1	Note This version doesn't support HTTP proxy configuration. Version 2.2.2 and higher reintroduces support for this feature. New features Adds support to this component to toggle compression when uploading data to AWS IoT SiteWise.
2.2.0	Note This version doesn't support HTTP proxy configuration. Version 2.2.2 and higher reintroduces support for this feature. New features Updates this component to compress data before sending it to the AWS IoT SiteWise service. In most cases, this change reduces bandwidth usage by 75 percent compared to previous versions of this component. In most cases, this change increases CPU usage by up to 5 percent. On gateways that process large amounts of data, this change can increase CPU usage by up to 15 percent. This change doesn't affect AWS IoT SiteWise service charges or service quota usage. Adds support for Windows Server 2019 or higher. Bug fixes and improvements Fixes an issue that prevents this component from starting when the checkpoint file is corrupted.
2.1.4	Bug fixes and improvements Fixes compatibility with Java version 8.
2.1.3	Warning This version is no longer available, except in the US East (Ohio), Canada (Central), and AWS GovCloud (US-East) Regions. This component version requires Java version 11 or greater to run. The improvements in this version are available in later versions of this component. Bug fixes and improvements Improves error messages when you deploy this component on unsupported devices. Updates to log errors when data uploads fail.
2.1.2	Bug fixes and improvements Updates to invoke the expired data export feature as soon as data expires.
2.1.1	Bug fixes and improvements.
2.1.0	New features Adds support for publishing the newest data to the cloud first. Adds support for not publishing expired data to the cloud. Adds support for storing expired data locally. Bug fixes and improvements Reduces disk I/O and corresponding latency.
2.0.2	Bug fixes and improvements.
2.0.1	Initial version.