question Re: NiFi know which queues are overwhelmed from nifi ui in Support Questions

How to Find Overwhelmed Queues and Backpressure using the Apache NiFi Summary UI

dhieru — Wed, 03 Jun 2026 13:45:55 GMT

HI All,

Thanks a lot to this awesome community.

I have a lot of process groups in my nifi ui and some of them are overwhelmed with the data, the success queue is filled up.

Is there a way to look what all success queue inside of process queue's are filled up from the main page?

Thanks

Dhieru

Re: NiFi know which queues are overwhelmed from nifi ui

MattWho — Sun, 18 Aug 2019 07:36:48 GMT

@dhieru singh

NiFi offers a "Summary" UI which has a connections tab you can select.

Once selected you can sort on the "Queue / Size threshold" column by clicking on the "Queue" word".

This will move your connections with the largest threshold percentage to the top of the list.

100% for Queue threshold indicates object threshold back pressure is being applied on that connection.

100% for Size threshold indicates that Queue Size back pressure is being applied on that connection.

Clicking on the error to the far right of the row will take you directly to hat connection on your canvas no matter which process group it exists within.

Thank you,

Matt

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Re: NiFi know which queues are overwhelmed from nifi ui

dhieru — Tue, 16 Jan 2018 05:40:50 GMT

@Matt Clarke Thanks a lot appreciate your help