Release aggregations earlier during reduce #124520
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| } | ||
| }; | ||
| return topLevelReduce(aggregations, context); | ||
| public static InternalAggregations topLevelReduce(Iterator<InternalAggregations> aggs, int count, AggregationReduceContext context) { |
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This method is single-use for now but I left it here since it could be used where the existing version of it that consumes a list is used today as well to save some more indirection and maybe heap.
iverase
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Mar 12, 2025
server/src/main/java/org/elasticsearch/action/search/QueryPhaseResultConsumer.java
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Although the failure in CI might need attention |
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Funny enough, I think that failure was unrelated. I'll comment on the already existing issue for it. Thanks Ignacio! |
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Release each hit's aggregations before moving on to the next hit and unlink it from the shard result even earlier. Also, do the aggregation-reduce earlier in the reduce steps to reduce average heap use over time. To that effect, do not do the reduction in the search phase controller. This has the added benefit of removing any need for a fake aggs-reduce-context in scroll.
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Release each hit's aggregations before moving on to the next hit and unlink it from the shard result even earlier.
Also, do the aggregation-reduce earlier in the reduce steps to reduce average heap use over time.
To that effect, do not do the reduction in the search phase controller. This has the added benefit of removing any need for a fake aggs-reduce-context in scroll.