Bit of an update: I have an unbounded queue on my thread-pool-executor so 
this means it can process request up-till INT_MAX request on the queue. 
Still unclear on when does a message in a queue for the actor becomes a 
task in the thread pool queue.

On Wednesday, October 3, 2018 at 12:38:23 AM UTC-7, 
> Hi,
> I am working on an application where I am using the thread-pool-executor. 
> I read the documentation on the parameters for the Threadpool executor and 
> I want to know what is the correlation of task-queue-size to message inbox 
> of Actors. When does a message in the inbox become a task? I am asking this 
> because according to the documentation of ThreadPool Executor: if I have 
> more tasks coming in on a full queue governed by the task-queue-size then 
> those tasks will be dropped[Hopefully I understood this correctly]; if that 
> is true what will be a situation in which this can happen. I thought the 
> mailbox to actor coupling was made to avoid the situation where if enough 
> threads are not available tasks are not dropped but delayed.
> Thank you for your help.

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