How to implement fairness in Task Executor consuming tasks from Blocking queue
I would like to implement a consumer service which is processing tasks from a queue. The consumer service / task runner I have implemented using an executor service.
However some of the tasks I need to process take longer than others and I would like to implement some type fairness within the task runner. When i invoke/schedule the consumer I will know the number tasks presently on the queue to execute.
I was wondering what is the best approach to achieve this ?
Each task has a specific type and an approx execution time.
java producer-consumer
asked Nov 25 '18 at 13:04
MojoMojo
13
add a comment |
I would like to implement a consumer service which is processing tasks from a queue. The consumer service / task runner I have implemented using an executor service.
However some of the tasks I need to process take longer than others and I would like to implement some type fairness within the task runner. When i invoke/schedule the consumer I will know the number tasks presently on the queue to execute.
I was wondering what is the best approach to achieve this ?
Each task has a specific type and an approx execution time.
java producer-consumer
asked Nov 25 '18 at 13:04
MojoMojo
13
Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10
add a comment |
I would like to implement a consumer service which is processing tasks from a queue. The consumer service / task runner I have implemented using an executor service.
However some of the tasks I need to process take longer than others and I would like to implement some type fairness within the task runner. When i invoke/schedule the consumer I will know the number tasks presently on the queue to execute.
I was wondering what is the best approach to achieve this ?
Each task has a specific type and an approx execution time.
java producer-consumer
asked Nov 25 '18 at 13:04
MojoMojo
13
I would like to implement a consumer service which is processing tasks from a queue. The consumer service / task runner I have implemented using an executor service.
However some of the tasks I need to process take longer than others and I would like to implement some type fairness within the task runner. When i invoke/schedule the consumer I will know the number tasks presently on the queue to execute.
I was wondering what is the best approach to achieve this ?
Each task has a specific type and an approx execution time.
java producer-consumer
java producer-consumer
asked Nov 25 '18 at 13:04
MojoMojo
13
asked Nov 25 '18 at 13:04
MojoMojo
13
edited Nov 25 '18 at 13:06
Mojo
asked Nov 25 '18 at 13:04
MojoMojo
13
asked Nov 25 '18 at 13:04
MojoMojo
13
asked Nov 25 '18 at 13:04
MojoMojo
13
13
Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10
add a comment |
Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10
Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10
add a comment |
1 Answer
1
active
oldest
votes
You can adjust resource usage by experimenting with task priorities or you can force the longer-running tasks to periodically sleep, forcing them to allow other tasks to execute.
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
add a comment |
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1 Answer
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active
oldest
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1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
You can adjust resource usage by experimenting with task priorities or you can force the longer-running tasks to periodically sleep, forcing them to allow other tasks to execute.
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
add a comment |
You can adjust resource usage by experimenting with task priorities or you can force the longer-running tasks to periodically sleep, forcing them to allow other tasks to execute.
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
add a comment |
You can adjust resource usage by experimenting with task priorities or you can force the longer-running tasks to periodically sleep, forcing them to allow other tasks to execute.
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
You can adjust resource usage by experimenting with task priorities or you can force the longer-running tasks to periodically sleep, forcing them to allow other tasks to execute.
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
answered Nov 27 '18 at 16:56
Jim RogersJim Rogers
1,211515
1,211515
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
add a comment |
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
Yes a priority queue would go far to solve this. My problem is that my service is subscribed to external service publishing tasks per user on queue. To achieve the priority scheduling would I need to pop tasks off the subscribed queue, place in priority queue and then submit to executor service ... introducing another queue just does not seem correct to me.
– Sam
Nov 28 '18 at 20:42
add a comment |
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Define "fairness".
– JB Nizet
Nov 25 '18 at 13:05
One category of tasks should not hog all resources since some take longer than others to execute
– Mojo
Nov 25 '18 at 13:10