java.lang.NullPointerException: This exception has no message.

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via Google Groups by Maurizio Gallelli, 1 year ago
This exception has no message.
via GitHub by Hailei
, 1 year ago
via Google Groups by Hailei Zhang, 6 months ago
at io.druid.query.aggregation.LongSumAggregator.combineValues(
at io.druid.query.aggregation.LongSumAggregatorFactory.combine(
at io.druid.segment.IndexMerger$RowboatMergeFunction.apply(
at io.druid.segment.IndexMerger.makeIndexFiles(
at io.druid.segment.IndexMerger.merge(
at io.druid.segment.IndexMerger.mergeQueryableIndex(
at java.util.concurrent.ThreadPoolExecutor.runWorker(
at java.util.concurrent.ThreadPoolExecutor$

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