# PMM2 - mongod sharded cluster QAN
**URL:** https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780
**Category:** PMM 2.x
**Tags:** mongodb
**Created:** [May 23, 2022, 6:17am UTC](https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780 "2022-05-23T06:17:43Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@Aayushi\_Mangal](https://forums.percona.com/u/Aayushi_Mangal)
#### Post date: [May 23, 2022, 6:17am UTC](https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780/1 "2022-05-23T06:17:43Z")
Hi Team,
Would like to confirm if there is any limitation while using QAN, enables QAN in mongoDB sharded cluster, but only getting find,delete,update queries, no queries for aggregation.
How to monitor aggregation queries in PMM, any help much appriciated.
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### Author:  [@Ivan\_Groenewold](https://forums.percona.com/u/Ivan_Groenewold)
#### Post date: [May 23, 2022, 1:24pm UTC](https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780/2 "2022-05-23T13:24:43Z")
Hello, there should be no limitation. Do any aggregation queries show in the system.profile collection?
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### Author:  [@Aayushi\_Mangal](https://forums.percona.com/u/Aayushi_Mangal)
#### Post date: [May 25, 2022, 11:19am UTC](https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780/3 "2022-05-25T11:19:48Z")
Thank you for quick response, but no aggregation results found on query section while shard cluster.
Also would like to confirm does PMM require any additional setting/parameter for cross DC.
For example:
replica set1 - 3 machine is in different subnet and 2 machines is in different subnet.
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### Author:  [@Ivan\_Groenewold](https://forums.percona.com/u/Ivan_Groenewold)
#### Post date: [May 26, 2022, 11:29am UTC](https://forums.percona.com/t/pmm2-mongod-sharded-cluster-qan/15780/4 "2022-05-26T11:29:14Z")
As long as the replica set members can reach the PMM server port 443 there is no problem.