milleruntime commented on PR #2767:
URL: https://github.com/apache/accumulo/pull/2767#issuecomment-1154031019

   The failure in `GarbageCollectorIT` is interesting: 
   <pre>
   2022-06-13T10:16:50,702 [gc.SimpleGarbageCollector] ERROR: Scanner was closed
   java.lang.IllegalStateException: Scanner was closed
           at 
com.google.common.base.Preconditions.checkState(Preconditions.java:502) 
~[guava-31.1-jre.jar:?]
           at 
org.apache.accumulo.core.clientImpl.ScannerIterator.readBatch(ScannerIterator.java:150)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.clientImpl.ScannerIterator.getNextBatch(ScannerIterator.java:169)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.clientImpl.ScannerIterator.hasNext(ScannerIterator.java:105)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.IsolatedScanner$RowBufferingIterator.readRow(IsolatedScanner.java:78)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.IsolatedScanner$RowBufferingIterator.next(IsolatedScanner.java:162)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.IsolatedScanner$RowBufferingIterator.next(IsolatedScanner.java:45)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.util.PeekingIterator.next(PeekingIterator.java:71) 
~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.RowIterator$SingleRowIter._next(RowIterator.java:76)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.RowIterator$SingleRowIter.next(RowIterator.java:69)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.client.RowIterator$SingleRowIter.next(RowIterator.java:42)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.metadata.schema.TabletMetadata.convertRow(TabletMetadata.java:316)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.metadata.schema.TabletsMetadata$Builder.lambda$buildNonRoot$8(TabletsMetadata.java:216)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
com.google.common.collect.Iterators$6.transform(Iterators.java:829) 
~[guava-31.1-jre.jar:?]
           at 
com.google.common.collect.TransformedIterator.next(TransformedIterator.java:52) 
~[guava-31.1-jre.jar:?]
           at 
org.apache.accumulo.core.metadata.schema.LinkingIterator.next(LinkingIterator.java:147)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.metadata.schema.LinkingIterator.next(LinkingIterator.java:50)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
java.util.Spliterators$IteratorSpliterator.tryAdvance(Spliterators.java:1812) 
~[?:?]
           at 
java.util.stream.StreamSpliterators$WrappingSpliterator.lambda$initPartialTraversalState$0(StreamSpliterators.java:294)
 ~[?:?]
           at 
java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.fillBuffer(StreamSpliterators.java:206)
 ~[?:?]
           at 
java.util.stream.StreamSpliterators$AbstractWrappingSpliterator.doAdvance(StreamSpliterators.java:161)
 ~[?:?]
           at 
java.util.stream.StreamSpliterators$WrappingSpliterator.tryAdvance(StreamSpliterators.java:300)
 ~[?:?]
           at java.util.Spliterators$1Adapter.hasNext(Spliterators.java:681) 
~[?:?]
           at 
org.apache.accumulo.gc.GarbageCollectionAlgorithm.removeCandidatesInUse(GarbageCollectionAlgorithm.java:139)
 ~[accumulo-gc-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.gc.GarbageCollectionAlgorithm.confirmDeletesTrace(GarbageCollectionAlgorithm.java:287)
 ~[accumulo-gc-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.gc.GarbageCollectionAlgorithm.deleteBatch(GarbageCollectionAlgorithm.java:345)
 ~[accumulo-gc-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.gc.GarbageCollectionAlgorithm.collect(GarbageCollectionAlgorithm.java:329)
 ~[accumulo-gc-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.gc.SimpleGarbageCollector.run(SimpleGarbageCollector.java:214)
 ~[accumulo-gc-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
           at 
org.apache.accumulo.core.trace.TraceWrappedRunnable.run(TraceWrappedRunnable.java:52)
 ~[accumulo-core-2.1.0-SNAPSHOT.jar:2.1.0-SNAPSHOT]
   </pre>


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