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https://issues.apache.org/jira/browse/AMBARI-15448?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Siddharth Wagle updated AMBARI-15448:
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Description:
We need to collect and expose per-disk metrics from AMS for iostats counters.
We can sort the disk names alphabetically, and name the metrics like _1, _2,
etc.
Plus from psutils:
busy_time: (Linux, FreeBSD) time spent doing actual I/Os (in milliseconds)
read_merged_count (Linux): number of merged reads (see iostat doc)
write_merged_count (Linux): number of merged writes (see iostats doc)
_Additional fixes_:
- Combined_disk_total metric seems to be wrong : it is a sum() of all disk
percentages from different disks
- Missing ATS and JHS metrics due to wrong config item in
hadoop-metrics2.properties file
- Report number of disks
was:
We need to collect and expose per-disk metrics from AMS for iostats counters.
We can sort the disk names alphabetically, and name the metrics like _1, _2,
etc.
Plus from psutils:
busy_time: (Linux, FreeBSD) time spent doing actual I/Os (in milliseconds)
read_merged_count (Linux): number of merged reads (see iostat doc)
write_merged_count (Linux): number of merged writes (see iostats doc)
> Report [AMS / Grafana] Per Disk Metrics
> ---------------------------------------
>
> Key: AMBARI-15448
> URL: https://issues.apache.org/jira/browse/AMBARI-15448
> Project: Ambari
> Issue Type: Task
> Components: ambari-metrics
> Affects Versions: 2.2.2
> Reporter: Siddharth Wagle
> Assignee: Siddharth Wagle
> Fix For: 2.2.2
>
>
> We need to collect and expose per-disk metrics from AMS for iostats counters.
> We can sort the disk names alphabetically, and name the metrics like _1, _2,
> etc.
> Plus from psutils:
> busy_time: (Linux, FreeBSD) time spent doing actual I/Os (in milliseconds)
> read_merged_count (Linux): number of merged reads (see iostat doc)
> write_merged_count (Linux): number of merged writes (see iostats doc)
> _Additional fixes_:
> - Combined_disk_total metric seems to be wrong : it is a sum() of all disk
> percentages from different disks
> - Missing ATS and JHS metrics due to wrong config item in
> hadoop-metrics2.properties file
> - Report number of disks
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