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You can enable metrics emitter and add JVMMonitor in the

druid.monitoring.monitors

. There are a few memory related metrics that are emitted for each JVM.

Thanks @Sergio Ferragut to be more specific in query how can I check each running task for particular data source(index task) memory consumption? I mean which metrics I can use for that here?

I'll have to test to see the actual values, but these metrics will have dimensions for

service

and

host

which should at least identify the

Peon

and the

host ip or host name

it is running on. I don't think you can do this by taskId or by dataSource.

Okay @Sergio Ferragut! but if I want to check any particular if task is running how much memory that particular task consuming can atleast these details be collected?

That would definitely be an interesting dimension for Peon JVM monitor to produce. According to the docs it does not have it. But it sounds like a great improvement to the metrics. Would you like to create a github issue with the improvement description?

@Sergio Ferragut I have created an issue for this. Thaks for this. https://github.com/apache/druid/issues/14253