Subscription Issue
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Assessment
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Newbie friendliness
- 25/100
Research direction
Start by reviewing the Greengrass subscription setup for Device A and Lambda B, focusing on the local MQTT topic test1 and the difference between in-group and AWS IoT Cloud subscriptions. Done means determining why the local publish is not delivered to Lambda B and documenting the required configuration.
Written by the indexing model from the issue text.
Description
Hi Team,
I'm trying to use subscription functionality to achieve local data sharing between the devices. For this I have the below scenario:
There is a device A which read payload from an external system(XYZ) over MQTT protocol and publish this payload over a new topic test1 and there is another lambda function B that subscribed topic test1. Both are attached in the Greengrass group. when I deployed this in-group the lambda function not able to read the topic test1 payload but when I change the subscription of Device A to AWS IoT Cloud then lambda function starts reading the publish topic payload. I don't know why this happening. Does Greengrass not support horizontal subscription.
Scenario 1:(Not Working)
topic:test1
Device A----------------> Lambda B (Not Working)
Scenario 1:(working)
topic:test1
Device A ----------------> AWS IoT Cloud
topic:test1
Device A--------------> Lambda B
Please suggest what is wrong I am doing here.
Regards,
Raj
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- Stars
- 9
- Forks
- 8
- PR merge metrics
- No merged PRs in 30d
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