Bug #2323

Grafana has high CPU usage and high I/O

Added by N. Köster over 5 years ago. Updated over 5 years ago.

Status:ResolvedStart date:06/14/2015
Priority:NormalDue date:
Assignee:J. Wienke% Done:

100%

Category:integration
Target version:2.0

Description

InfluxDB uses ~600% CPU for about 1 - 1/2 hours. Also there is a high I/O during this time (4-6MB).

Is this intended? I suppose it is self-optimisation of the database (e.g. index generation)... If so, can this be forced to happen only at night (eg. past 1 am)?

see here for an image of the usage (CSRA internal)

History

#1 Updated by J. Wienke over 5 years ago

  • Category set to integration

#2 Updated by J. Wienke over 5 years ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 40

Basically we are limited by the integration between influxdb and grafana and the (in-) ability to use continuous downsampling queries. I have informally evaluated graphite as a different backend again and performance is much better here. Usable support is implemented in the master tree.

#3 Updated by J. Wienke over 5 years ago

  • Status changed from In Progress to Resolved
  • Assignee set to J. Wienke
  • Target version set to 2.0
  • % Done changed from 40 to 100

This is basically solved with switching to graphite.

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