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Posted to dev@iotdb.apache.org by "Julian Feinauer (Jira)" <ji...@apache.org> on 2020/03/01 13:04:00 UTC
[jira] [Created] (IOTDB-528) [GRAFANA] Implicitly do GROUP BY to
avoid sending to many data over the wire
Julian Feinauer created IOTDB-528:
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Summary: [GRAFANA] Implicitly do GROUP BY to avoid sending to many data over the wire
Key: IOTDB-528
URL: https://issues.apache.org/jira/browse/IOTDB-528
Project: Apache IoTDB
Issue Type: Improvement
Components: Connectors/Grafana
Reporter: Julian Feinauer
When using itodb-grafana integration through SimpleJson it seems like it does not do any aggregation at all.
In situations where one selects a big time range it should do some subsampling with group by to limit the number of rows being sent.
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Re: [jira] [Created] (IOTDB-528) [GRAFANA] Implicitly do GROUP BY to
avoid sending to many data over the wire
Posted by Xiangdong Huang <sa...@gmail.com>.
Hi,
It seems SimpleJSON does not support aggregation push-down[1].
Actually, we need a better Grafana connector implementation to solve this
problem.
[1] https://grafana.com/grafana/plugins/grafana-simple-json-datasource
Best,
-----------------------------------
Xiangdong Huang
School of Software, Tsinghua University
黄向东
清华大学 软件学院
Julian Feinauer (Jira) <ji...@apache.org> 于2020年3月1日周日 下午9:04写道：
> Julian Feinauer created IOTDB-528:
> -------------------------------------
>
> Summary: [GRAFANA] Implicitly do GROUP BY to avoid sending to
> many data over the wire
> Key: IOTDB-528
> URL: https://issues.apache.org/jira/browse/IOTDB-528
> Project: Apache IoTDB
> Issue Type: Improvement
> Components: Connectors/Grafana
> Reporter: Julian Feinauer
>
>
> When using itodb-grafana integration through SimpleJson it seems like it
> does not do any aggregation at all.
>
> In situations where one selects a big time range it should do some
> subsampling with group by to limit the number of rows being sent.
>
>
>
> --
> This message was sent by Atlassian Jira
> (v8.3.4#803005)
>