# Page Faults metrics not showing up in mongodb\_exporter results

**URL:** <https://forums.percona.com/t/page-faults-metrics-not-showing-up-in-mongodb-exporter-results/6997>\
**Category:** PMM 1.x\
**Created:** [May 3, 2019, 1:03pm UTC](https://forums.percona.com/t/page-faults-metrics-not-showing-up-in-mongodb-exporter-results/6997 "2019-05-03T13:03:55Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![dcadwallader](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/dcadwallader/32/58_2.png) [@dcadwallader](https://forums.percona.com/u/dcadwallader)\
**Post date:** [May 3, 2019, 1:03pm UTC](https://forums.percona.com/t/page-faults-metrics-not-showing-up-in-mongodb-exporter-results/6997/1 "2019-05-03T13:03:55Z")

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We’re loving the mongodb\_exporter for prometheus, and it’s giving us tons of useful metrics. However, some of them are showing up blank. Notably:

mongodb\_mongod\_extra\_info\_page\_faults\_total

I understand that this metric comes from the “extra\_info” group, which is governed by the `-groups.enabled` option. However we are not passing this option so I assume the default should apply.

According to the docs here: [URL][https://www.percona.com/doc/percona-monitoring-and-management/section.exporter.mongodb.html[/URL]](https://www.percona.com/doc/percona-monitoring-and-management/section.exporter.mongodb.html%5B/URL%5D) the default is “asserts,durability,background\_flushing,connections,extra\_info,global\_lock, index\_counters,network,op\_counters,op\_counters\_repl,memory,locks,metrics” which should include extra\_info.

Any pointers?