Monitoring queue of ExecutionContextExecutor "scala.concurrent.ExecutionContext.Implicits.global"

Question

Is there any way to monitor the task queue of scala.concurrent.ExecutionContext.Implicits.global? ie., see the number of tasks waiting for a thread to be released?

Answer 1

JDK comes along with jconsole and jmc. You can use them to see thread usage. You can see,

• Thread state,
• blocked count
• thread allocated bytes etc

scala implicit threads name start with scala-execution-context-global-n.

jmc screenshot:

Related: what is the best way to get the number of futures running in background in an execution context?