Logging from an Ion

Datomic Cloud
1

Hi,

I was under the impression that using the cast namespace would allow me to log to cloudwatch logs, but l think I may have misunderstood, and this is meant to be redirected for dev workflow. How do I get fine-grained logs into cloudwatch logs (stdout appears to be redirected too). My aim is to get the logs into Datadog, I think CW logs is the most reliable route.

Any pointers appreciated.

Cheers

2

cast functionality does indeed allow you to log to CloudWatch.

In particular, Events, Alerts, and Metrics that are cast from an Ion (https://docs.datomic.com/cloud/ions/ions-monitoring.html#overview) will log to your Datomic system’s CloudFormation logs.

cast/dev can be redirected to stdout or stderr when working locally, but will not be logged at all once deployed to a Datomic system as an Ion.

3

Thanks Marshall, so if I want to see the normal application flow, I should log events for each stage of a request?

Cheers,
Dean

4

Dean,

Generally, yes you can use ion/cast in place of whatever you would normally use for application logging.

-Marshall

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