# Job concurrency & parameters **URL:** \ **Category:** feature\ **Tags:** queues\ **Created:** [March 2, 2017, 8:58am UTC](https://discuss.hangfire.io/t/job-concurrency-parameters/3021 "2017-03-02T08:58:50Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![bsoulier](https://dub1.discourse-cdn.com/flex017/user_avatar/discuss.hangfire.io/bsoulier/32/892_2.png) [@bsoulier](https://discuss.hangfire.io/u/bsoulier)\ **Post date:** [March 2, 2017, 8:58am UTC](https://discuss.hangfire.io/t/job-concurrency-parameters/3021/1 "2017-03-02T08:58:50Z")
Hi everyone, I would like to know if it is possible to disable concurrent execution in a partitioned manner (e.g. with a parameter value). For example, Having a job with a category as an integer (dynamic). This would mean having only one job of its kind to run with “category1” (if more coming, they are queued), but a job with “category2” would just run straight as it is the first one to come. Can this be achieved using queues? Cheers, Ben ---
**Author:** ![nshanmugamram](https://avatars.discourse-cdn.com/v4/letter/n/ac8455/32.png) [@nshanmugamram](https://discuss.hangfire.io/u/nshanmugamram)\ **Post date:** [October 19, 2017, 10:12am UTC](https://discuss.hangfire.io/t/job-concurrency-parameters/3021/2 "2017-10-19T10:12:02Z")
Did you find any solution to this problem? ---
**Author:** ![Abalone](https://dub1.discourse-cdn.com/flex017/user_avatar/discuss.hangfire.io/abalone/32/2254_2.png) [@Abalone](https://discuss.hangfire.io/u/Abalone)\ **Post date:** [September 24, 2020, 7:50pm UTC](https://discuss.hangfire.io/t/job-concurrency-parameters/3021/3 "2020-09-24T19:50:45Z")
Seems not possible with the free version. With Ace version you may have access to Mutex, Semaphore : [https://docs.hangfire.io/en/latest/background-processing/throttling.html#mutexes](https://docs.hangfire.io/en/latest/background-processing/throttling.html#mutexes) I’m still interested for a free solution…