# Increase maxwaitQueuesize/connections in MongoDB Operator

**URL:** <https://forums.percona.com/t/increase-maxwaitqueuesize-connections-in-mongodb-operator/22330>\
**Category:** Percona Operator for MongoDB\
**Tags:** percona, mongodb\
**Created:** [May 26, 2023, 11:33am UTC](https://forums.percona.com/t/increase-maxwaitqueuesize-connections-in-mongodb-operator/22330 "2023-05-26T11:33:46Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Avinash\_Rai](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/avinash_rai/32/10302_2.png) [@Avinash\_Rai](https://forums.percona.com/u/Avinash_Rai)\
**Post date:** [May 26, 2023, 11:33am UTC](https://forums.percona.com/t/increase-maxwaitqueuesize-connections-in-mongodb-operator/22330/1 "2023-05-26T11:33:46Z")

</div>

I am using latest mongodb operator version which is 6.0.4  
I am trying to do benchmarking using ycsb and when I am trying to run the benchmark with more then 500 threads I am getting an error

 ![Screenshot 2023-05-26 at 4.42.01 PM](https://us1.discourse-cdn.com/flex019/uploads/percona1/original/2X/6/65bb61477cfb72e8b03fcd24f1ba2c83cc1fc499.jpeg)

Is there any way by which I can increase this number any flag or something available to achieve it?

---

<div class="post-metadata">

**Author:** ![Sergey\_Pronin](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/sergey_pronin/32/14887_2.png) [@Sergey\_Pronin](https://forums.percona.com/u/Sergey_Pronin)\
**Post date:** [May 26, 2023, 12:48pm UTC](https://forums.percona.com/t/increase-maxwaitqueuesize-connections-in-mongodb-operator/22330/2 "2023-05-26T12:48:58Z")

</div>

Hey @Avinash_Rai ,

you can tune MongoDB through setting custom configuration parameters.  
Read here for more details: [Changing MongoDB options - Percona Operator for MongoDB](https://docs.percona.com/percona-operator-for-mongodb/options.html)