Hello,
I have noticed in one of the charts (HDFS IO) available in CM dashboard for HDFS that runs below query have got values pulled from 2 separate entities for the same metric. Attached are the 3 screenshots for reference. 2 graphs showing values from individual entities and 1 the combined graph available in CM that triggers below query.
select total_bytes_read_rate_across_datanodes, total_bytes_written_rate_across_datanodes where category = SERVICE and serviceType = HDFS and clusterId = "1"
Two different entities are hdfs and hdfs:<cluster_name>
I have also verified the response from below API call, and it does returns both entities and both have latest data.
http://<cm-host>:7180/api/v19/timeseries?query=SELECT%20total_bytes_written_rate_across_datanodes%20WHERE%20category=SERVICE
What do they mean?
Where are they coming from?
How to get it fixed so a single value is returned for the metric?
Kindly advise.
Thanks
Snm1523
