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Disadvantages of Actor model

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Hello..
 
 
Disadvantages of Actor model:
 
1- Not all languages easily enforce immutability
 
Erlang, the language that first popularized actors has immutability at
its core but Java and Scala (actually the JVM) does not enforce
immutability.
 
 
2- Still pretty complex
 
Actors are based on an asynchronous model of programming which is not so
straight forward and easy to model in all scenarios; it is particularly
difficult to handle errors and failure scenarios.
 
 
3- Does not prevent deadlock or starvation
 
Two actors can be in the state that wait message one from another; thus
you have a deadlock just like with locks, although much easier to debug.
With transactional memory however you are guaranteed deadlock free.
 
 
4- Not so efficient
 
Because of enforced immutability and because many actors have to switch
in using the same thread actors won't be as efficient as lock-based
concurrency.
 
 

 
Thank you,
Amine Moulay Ramdane.

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Disadvantages of Actor model aminer68@gmail.com - 2020-01-22 12:05 -0800

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