What does the 'Failed to send message: Upstream invocation error: Error while copying content to a stream..' error message mean in Azure Pubsub live trace?

Courtney Henderson 20 Reputation points

After working without issue for a few months, we are now receiving the following error messages on all messages in the azure PubSub live trace tool.

Failed to send message: Send event to event handler failed...

Failed to send message: Upstream invocation error: Error while copying content to a stream...

It seems requests are hitting our API and a 200 response is being returned with a valid body, but the PubSub service is then throwing this error and not sending messages out to other clients in the group.

I cannot find this error message documented anywhere. What exactly does this error indicate? Is there any way we can see what response PubSub is receiving to determine if there is an issue with something between our API and PubSub?

Azure Web PubSub
Azure Web PubSub
An Azure service that provides real-time messaging for web applications using WebSockets and the publish-subscribe pattern.
53 questions
{count} votes

Accepted answer
  1. Ryan Hill 22,751 Reputation points Microsoft Employee

    Thank you for posting you question @Courtney Henderson .

    To benefit the broader community, the product group has discovered a bug in the service that caused this problem. They have a fix that will be applied for all the affected resources.

    1 person found this answer helpful.
    0 comments No comments

0 additional answers

Sort by: Most helpful