drcrallen commented on issue #5913: Move Caching Cluster Client to java streams and allow parallel intermediate merges URL: https://github.com/apache/incubator-druid/pull/5913#issuecomment-405369433 ``` Tests run: 3990, Failures: 0, Errors: 1, Skipped: 60, Time elapsed: 69.407 sec <<< FAILURE! - in io.druid.query.groupby.GroupByQueryRunnerTest testBySegmentResultsWithAllFiltersWithExtractionFns[config=v2ParallelCombine, runner=rtIndex](io.druid.query.groupby.GroupByQueryRunnerTest) Time elapsed: 0.979 sec <<< ERROR! java.lang.OutOfMemoryError: Direct buffer memory at java.nio.Bits.reserveMemory(Bits.java:694) at java.nio.DirectByteBuffer.<init>(DirectByteBuffer.java:123) at java.nio.ByteBuffer.allocateDirect(ByteBuffer.java:311) at io.druid.query.groupby.GroupByQueryRunnerTest$8.get(GroupByQueryRunnerTest.java:358) at io.druid.query.groupby.GroupByQueryRunnerTest$8.get(GroupByQueryRunnerTest.java:354) at io.druid.collections.StupidPool.makeObjectWithHandler(StupidPool.java:112) at io.druid.collections.StupidPool.take(StupidPool.java:103) at io.druid.query.groupby.epinephelinae.GroupByQueryEngineV2.process(GroupByQueryEngineV2.java:125) at io.druid.query.groupby.strategy.GroupByStrategyV2.process(GroupByStrategyV2.java:354) at io.druid.query.groupby.GroupByQueryRunnerFactory$GroupByQueryRunner.run(GroupByQueryRunnerFactory.java:108) at io.druid.query.BySegmentQueryRunner.run(BySegmentQueryRunner.java:54) at io.druid.query.FinalizeResultsQueryRunner.run(FinalizeResultsQueryRunner.java:104) at io.druid.query.ChainedExecutionQueryRunner$1$1.call(ChainedExecutionQueryRunner.java:119) at io.druid.query.ChainedExecutionQueryRunner$1$1.call(ChainedExecutionQueryRunner.java:114) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at com.google.common.util.concurrent.MoreExecutors$SameThreadExecutorService.execute(MoreExecutors.java:297) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at com.google.common.util.concurrent.AbstractListeningExecutorService.submit(AbstractListeningExecutorService.java:58) at io.druid.query.ChainedExecutionQueryRunner$1.lambda$make$0(ChainedExecutionQueryRunner.java:112) at com.google.common.collect.Iterators$8.transform(Iterators.java:794) at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48) at com.google.common.collect.Iterators.addAll(Iterators.java:357) at com.google.common.collect.Lists.newArrayList(Lists.java:147) at com.google.common.collect.Lists.newArrayList(Lists.java:129) at io.druid.query.ChainedExecutionQueryRunner$1.make(ChainedExecutionQueryRunner.java:104) at io.druid.java.util.common.guava.BaseSequence.accumulate(BaseSequence.java:42) at io.druid.java.util.common.guava.Sequence.toList(Sequence.java:76) at io.druid.query.ChainedExecutionQueryRunner$1$1.call(ChainedExecutionQueryRunner.java:124) at io.druid.query.ChainedExecutionQueryRunner$1$1.call(ChainedExecutionQueryRunner.java:114) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at java.lang.Thread.run(Thread.java:748) ``` trying to merge with master to see if that fixes
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