Not working in cloud function

I am unable to get the client to work in a cloud function. Sometimes messages are never acknowledged (even though ack() is being called) and the cloud function can get “stuck” where no newly published messages are ever fetched until the cloud function is redeployed.

Reading the cloud function docs, background activities should not be started.

Is the node.js pubsub client not compatible with cloud functions because it sends acknowledgments in the background and re-uses connections from a pool? I have a StackOverflow question asking the same question in more detail.

Thanks!

Environment details

• OS: Google Cloud Function
• Node.js version: 6.11.5
• npm version: not documented by Google
• @google-cloud/pubsub version: 0.16.2

Steps to reproduce

1. Create a Google Cloud Function using the pubsub client to pull messages from a subscription
2. Deploy the function
3. Publish messages, execute the function, and repeat

[0x-jj]

“Sometimes messages are never acknowledged (even though ack() is being called) and the cloud function can get “stuck” where no newly published messages are ever fetched until the cloud function is redeployed.”

I’m currently facing this exact same issue. Is it still the case that the nodejs library should not be used in this way? As it was a few years ago I wonder if there has since been a fix or I should use a different approach.

[codyzu]

I wrote an article on our blog discussing in more detail why we use PubSub the way we do (and the challenges we encountered). It may be more clear than my description above.

Don’t hesitate to add any questions or feedback over there also…