KairosDB - 再次聚合，聚合，聚合

Question

KairosDB版本1.1.3-1。

我有[time, name, key, value]的dataPoints。 是否可以首先按name和key对它们进行分组，然后汇总结果，然后再按key对它们进行分组，然后再次汇总？

基本上是这样的：

1. name1 + key1的所有值以及name2 + key1的所有值
2. 每个平均聚合（10秒）
3. 按key1分组汇总结果（我想在此处合并结果）
4. 按总和（同期，10秒）汇总给定结果。

Answer 1

No you cannot do that. You only can group once, and cannot merge the groups afterwards.

We did our own extension to kairosdb supporting a similar feature (merging all groups of a metric with a sum/avg...), but it's so intrusive (we override kairosdb query handler by our own) that we did not contribute to open source.

Edit: You may try to use kairosDB post-processing script that is designed for that: https://github.com/kairosdb/kairos-script