Hey everyone,
Whenever a pick a time interval which doesn’t include today, the average latency from my LB becomes zero. Everything is fine regarding the percentiles. Also, everything looks fine on CloudWatch.
I’m using Grafana v4.2.0 (commit: 349f3eb)
Any clue?
I’m not too famiilar with CloudWatch but it look similar to the null value problem described in this guide:
One way to troubleshoot this is to go into graph display tab and check Points checkbox.
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This way you can see that that there is indeed data there. But still why is there no lines between them?
The reason for this is that Elasticsearch and InfluxDB has a group by time feature where data is grouped into buckets. If there is no data in a given time bucket a null value is returned. This null value can be good to return as it can indicate a period of missing data. you can control if a null…