Apache
/
druid
mirror of https://github.com/apache/druid.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Add docs to metric spec for auto compaction (#12415) 

* add docs

* Update docs/configuration/index.md

Co-authored-by: Victoria Lim <vtlim@users.noreply.github.com>

* Update index.md

* Update docs/configuration/index.md

Co-authored-by: Victoria Lim <vtlim@users.noreply.github.com>

Co-authored-by: Victoria Lim <vtlim@users.noreply.github.com>
This commit is contained in:
Maytas Monsereenusorn 2022-04-13 13:27:00 -07:00 committed by GitHub
parent 5e5625f3ae
commit 5d37d9f9d8
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
docs/configuration/index.md
View File

@ -970,6 +970,7 @@ A description of the compaction config is:
|`granularitySpec`|Custom `granularitySpec`. See [Automatic compaction granularitySpec](#automatic-compaction-granularityspec)|No| |`granularitySpec`|Custom `granularitySpec`. See [Automatic compaction granularitySpec](#automatic-compaction-granularityspec)|No|
|`dimensionsSpec`|Custom `dimensionsSpec`. See [Automatic compaction dimensionsSpec](#automatic-compaction-dimensions-spec)|No| |`dimensionsSpec`|Custom `dimensionsSpec`. See [Automatic compaction dimensionsSpec](#automatic-compaction-dimensions-spec)|No|
|`transformSpec`|Custom `transformSpec`. See [Automatic compaction transformSpec](#automatic-compaction-transform-spec)|No| |`transformSpec`|Custom `transformSpec`. See [Automatic compaction transformSpec](#automatic-compaction-transform-spec)|No|
|`metricsSpec`|Custom [`metricsSpec`](../ingestion/ingestion-spec.md#metricsspec). The compaction task preserves any existing metrics regardless of whether `metricsSpec` is specified. If `metricsSpec` is specified, Druid does not reapply any aggregators matching the metric names specified in `metricsSpec` to rows that already have the associated metrics. For rows that do not already have the metric specified in `metricsSpec`, Druid applies the metric aggregator on the source column, then proceeds to combine the metrics across segments as usual. If `metricsSpec` is not specified, Druid automatically discovers the metrics in the existing segments and combines existing metrics with the same metric name across segments. Aggregators for metrics with the same name are assumed to be compatible for combining across segments, otherwise the compaction task may fail.|No|
|`ioConfig`|IO config for compaction tasks. See below [Compaction Task IOConfig](#automatic-compaction-ioconfig).|no| |`ioConfig`|IO config for compaction tasks. See below [Compaction Task IOConfig](#automatic-compaction-ioconfig).|no|
An example of compaction config is: An example of compaction config is: