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Posted to issues@ambari.apache.org by "David F. Quiroga (JIRA)" <ji...@apache.org> on 2018/06/18 13:47:00 UTC
[jira] [Commented] (AMBARI-24123) Grafana System-Servers Dashboard
Disk IO/IOPS shows negative values
[ https://issues.apache.org/jira/browse/AMBARI-24123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16515718#comment-16515718 ]
David F. Quiroga commented on AMBARI-24123:
-------------------------------------------
Possibly related to AMBARI-23008, completed in AMBARI-23932
> Grafana System-Servers Dashboard Disk IO/IOPS shows negative values
> -------------------------------------------------------------------
>
> Key: AMBARI-24123
> URL: https://issues.apache.org/jira/browse/AMBARI-24123
> Project: Ambari
> Issue Type: Bug
> Components: ambari-metrics
> Affects Versions: 2.6.2
> Environment: HDP 2.6.4.0-91
> Ambari 2.6.2.0
> SLES 12
>
> Side note we did not observe this in HDP 2.5.3, Ambari 2.5.2
> Reporter: David F. Quiroga
> Priority: Trivial
> Attachments: disk_stat_2hr.jpg, disk_stat_6hr.jpg
>
>
> Grafana > System-Servers Dashboard
> Charts > Disk IO - Read Bytes, Write Bytes, Disk IOPS - Read Count, Write Count
> All display negative values for one or more hosts when viewed over a large time period (6+ hrs)
> Attached screenshots are for single host. 6hr shows negative values, but when "zoom-in" on same time period (2hr) there are no negative values.
> Therefore suspects it relates to aggregation of metrics rather than collection itself.
>
>
>
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