jjaen0823 opened a new issue, #13220:
URL: https://github.com/apache/druid/issues/13220
In 0.23.0, using a `momentSketch` aggregator at ingestion will result in the
following exception during indexing merging:
```
2022-10-12T07:35:37,617 WARN
[[index_parallel_newyork_momentsketch_test_agfjijan_2022-10-12T07:35:26.205Z]-appenderator-merge]
org.apache.druid.segment.realtime.appenderator.AppenderatorImpl - Failed to
push merged index for
segment[newyork_momentsketch_test_2016-01-01T00:00:00.000Z_2016-02-01T00:00:00.000Z_2022-10-12T07:35:36.144Z].
org.apache.druid.java.util.common.UOE:
[org.apache.druid.query.aggregation.momentsketch.aggregator.MomentSketchAggregatorFactory]
does not implement makeAggregateCombiner()
at
org.apache.druid.query.aggregation.AggregatorFactory.makeAggregateCombiner(AggregatorFactory.java:128)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.query.aggregation.AggregatorFactory.makeNullableAggregateCombiner(AggregatorFactory.java:142)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.RowCombiningTimeAndDimsIterator.lambda$new$1(RowCombiningTimeAndDimsIterator.java:120)
~[druid-processing-0.23.0.jar:0.23.0]
at java.util.Arrays.setAll(Arrays.java:4698) ~[?:1.8.0_275]
at
org.apache.druid.segment.RowCombiningTimeAndDimsIterator.<init>(RowCombiningTimeAndDimsIterator.java:120)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.lambda$merge$3(IndexMergerV9.java:1298)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.makeMergedTimeAndDimsIterator(IndexMergerV9.java:1360)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.makeIndexFiles(IndexMergerV9.java:293)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.merge(IndexMergerV9.java:1303)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.multiphaseMerge(IndexMergerV9.java:1120)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.IndexMergerV9.mergeQueryableIndex(IndexMergerV9.java:1062)
~[druid-processing-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.realtime.appenderator.AppenderatorImpl.mergeAndPush(AppenderatorImpl.java:923)
~[druid-server-0.23.0.jar:0.23.0]
at
org.apache.druid.segment.realtime.appenderator.AppenderatorImpl.lambda$push$1(AppenderatorImpl.java:784)
~[druid-server-0.23.0.jar:0.23.0]
at com.google.common.util.concurrent.Futures$1.apply(Futures.java:713)
[guava-16.0.1.jar:?]
at
com.google.common.util.concurrent.Futures$ChainingListenableFuture.run(Futures.java:861)
[guava-16.0.1.jar:?]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[?:1.8.0_275]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[?:1.8.0_275]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_275]
```
It looks like the moment sketch aggregator doesn't have
`makeAggregateCombiner()`.
The ingestion spec:
```
...
{
"type": "momentSketch",
"k": 3,
"name": "ms_passenger_count_true",
"fieldName": "passenger_count",
"compress": true
}
...
```
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