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Type: Incident report
Resolution: Fixed
Priority: Major
Fix Version/s: 3.0.6rc1, 3.2.2rc1, 3.4.0alpha1
Affects Version/s: 3.0.0
Component/s: Frontend (F)
Labels:
- dashboard
- performance
Environment:

Hide
[dverhoturov@mon-test ~]$ uname -a
Linux hostname 3.13.0-74-generic #118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
[dverhoturov@hostname ~]$ cat /etc/*release*
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS"
NAME="Ubuntu"
VERSION="14.04.3 LTS, Trusty Tahr"
ID=ubuntu
ID_LIKE=debian
PRETTY_NAME="Ubuntu 14.04.3 LTS"
VERSION_ID="14.04"

Show
[ dverhoturov@mon-test ~]$ uname -a Linux hostname 3.13.0-74-generic #118-Ubuntu SMP Thu Dec 17 22:52:10 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux [ dverhoturov@hostname ~]$ cat /etc/*release* DISTRIB_ID=Ubuntu DISTRIB_RELEASE=14.04 DISTRIB_CODENAME=trusty DISTRIB_DESCRIPTION="Ubuntu 14.04.3 LTS" NAME="Ubuntu" VERSION="14.04.3 LTS, Trusty Tahr" ID=ubuntu ID_LIKE=debian PRETTY_NAME="Ubuntu 14.04.3 LTS" VERSION_ID="14.04"

Dashboard with ~19k problem triggers draws for around 10 minutes on my laptop consuming 100% of one CPU core all the time.
My browser: firefox
Amount of groups: 109
Amount of hosts: few thousands