Instances "did not pass health check after command execution", but no errors in logs. How to diagnose?

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I'm trying to release some code using "eb deploy". Normally this works fine, but when deploying anything that includes the code from a particular pull request, the deploy fails, seemingly without logging any errors. I see:

Instance id(s) '<a,b,c,d>' did not pass health check after command execution.

When looking at the logs, I don't see any errors from the time that the deploy happened, and in fact it says "Application update - Command CMD-AppDeploy succeeded".

The logs I'm looking at are the ones in the zip you can download from https://us-west-1.console.aws.amazon.com/elasticbeanstalk/home?region=us-west-1#/environment/logs?applicationName=MY_APPLIICATION_NAME&environmentId=SOME_ENVIRONMENT

(And I did specifically look at logs for one of the instances that it said didn't pass health checks)

Other than checking these logs, what else can I do to help diagnose this problem?

asked 2 years ago86 views
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