# Limit the number of subscription for notification streams

**URL:** <https://dmap-community.ductus.global/t/limit-the-number-of-subscription-for-notification-streams/3980>\
**Category:** Other Northbound Interfaces\
**Created:** [February 1, 2022, 10:30am UTC](https://dmap-community.ductus.global/t/limit-the-number-of-subscription-for-notification-streams/3980 "2022-02-01T10:30:51Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bheesetty](https://avatars.discourse-cdn.com/v4/letter/b/7cd45c/32.png) [@bheesetty](https://dmap-community.ductus.global/u/bheesetty)\
**Post date:** [February 1, 2022, 10:30am UTC](https://dmap-community.ductus.global/t/limit-the-number-of-subscription-for-notification-streams/3980/1 "2022-02-01T10:30:52Z")

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Hi All,

Is there any option/way in confd that can limit the no of number of active streaming sessions a notification stream?

If there are multiple subscriptions for a notification stream, will it cause any in-stability?

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**Author:** ![mvf](https://yyz2.discourse-cdn.com/flex010/user_avatar/dmap-community.ductus.global/mvf/32/182_2.png) [@mvf](https://dmap-community.ductus.global/u/mvf)\
**Post date:** [February 8, 2022, 8:03am UTC](https://dmap-community.ductus.global/t/limit-the-number-of-subscription-for-notification-streams/3980/2 "2022-02-08T08:03:38Z")

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I would not say that the number of sessions alone can be what can cause problems. On the other hand, if many sessions require streaming of sizeable amounts of data at the same time, it might cause performance problems; and it is known that a single session can cause out-of-memory issues (even crashes) if it requires huge data transfers. As far as I know, there are no knobs that can limit this, but there might be in the future.

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**Author:** ![bheesetty](https://avatars.discourse-cdn.com/v4/letter/b/7cd45c/32.png) [@bheesetty](https://dmap-community.ductus.global/u/bheesetty)\
**Post date:** [February 11, 2022, 5:14am UTC](https://dmap-community.ductus.global/t/limit-the-number-of-subscription-for-notification-streams/3980/3 "2022-02-11T05:14:38Z")

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Thanks for the response.