# missing data in PMM

**URL:** <https://forums.percona.com/t/missing-data-in-pmm/6342>\
**Category:** PMM 1.x\
**Created:** [May 8, 2018, 1:31am UTC](https://forums.percona.com/t/missing-data-in-pmm/6342 "2018-05-08T01:31:11Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Rossonero224](https://avatars.discourse-cdn.com/v4/letter/r/8491ac/32.png) [@Rossonero224](https://forums.percona.com/u/Rossonero224)\
**Post date:** [May 8, 2018, 1:31am UTC](https://forums.percona.com/t/missing-data-in-pmm/6342/1 "2018-05-08T01:31:11Z")

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Hi all.  
I’m using latest version of pmm : 1.10.0  
Added about 32 mysql server hosts into it.  
But the data from client appear slowly and missing a lot in pmm.

I checked the /prometheous page, status/target and see that a lot of endpoints show that : state = UNKNOWN and Last Scrape : Never.

So the question is:

- how can I force PMM server to scrape all targets?
- if not, what is the delay time? I waited for more than 2 hours and there still be a lot of targets that are never scraped.

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**Author:** ![Peter](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/peter/32/2_2.png) [@Peter](https://forums.percona.com/u/Peter)\
**Post date:** [May 8, 2018, 6:54am UTC](https://forums.percona.com/t/missing-data-in-pmm/6342/2 "2018-05-08T06:54:22Z")

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Hi,

Data should appear pretty much instantly, chose range like last 15 minutes to have it more visible.

I would check “prometheus” dashboard to see resource usage. Your server might be overloaded.

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**Author:** ![Rossonero224](https://avatars.discourse-cdn.com/v4/letter/r/8491ac/32.png) [@Rossonero224](https://forums.percona.com/u/Rossonero224)\
**Post date:** [May 8, 2018, 10:46pm UTC](https://forums.percona.com/t/missing-data-in-pmm/6342/3 "2018-05-08T22:46:00Z")

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hi Peter,  
Thank you for your response,  
The data in Prometheous dashboard is missing too. It shows that the CPU usage is about 10% and pretty much ram is free.  
Can you tell me which log i should check in this case?

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**Author:** ![Michael\_Coburn](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/michael_coburn/32/18_2.png) [@Michael\_Coburn](https://forums.percona.com/u/Michael_Coburn)\
**Post date:** [May 10, 2018, 12:42pm UTC](https://forums.percona.com/t/missing-data-in-pmm/6342/4 "2018-05-10T12:42:36Z")

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You will find that the Prometheus log is useful to understand why the scrapes are failing, check the log /var/log/prometheus.log in the container. If you can share some of these entries this will help us better troubleshoot your installation.

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**Author:** ![matteraf](https://avatars.discourse-cdn.com/v4/letter/m/4da419/32.png) [@matteraf](https://forums.percona.com/u/matteraf)\
**Post date:** [July 4, 2018, 12:39pm UTC](https://forums.percona.com/t/missing-data-in-pmm/6342/5 "2018-07-04T12:39:41Z")

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I faced the same issue. I’m 1.0.8 and I couldn’t migrate to a newest version than I have.  
Graphics are chopped (i.e. MySQL Overview - very basic dashboard)