[jira] [Created] (ACCUMULO-4502) Called next when there is no top

["Ivan Bella (JIRA)" <ji...@apache.org>]

Ivan Bella created ACCUMULO-4502:
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             Summary: Called next when there is no top
                 Key: ACCUMULO-4502
                 URL: https://issues.apache.org/jira/browse/ACCUMULO-4502
             Project: Accumulo
          Issue Type: Bug
          Components: core, tserver
    Affects Versions: 1.6.6
            Reporter: Ivan Bella


This happens very rarely but we have seen the following exception (pulled from a server running 1.6.4).  Looking at the code I believe this condition can still happen in 1.8.0:

java.util.concurrent.ExecutionException: java.lang.IllegalStateException: Called next() when there is no top
...
Caused by: java.lang.IllegalStateException: Called next() when there is no top
HeapIterator.next(HeapIterator.java: 77)
WrappingIterator.next(WrappingIterator.java: 96)
MemKeyConversionIterator.next(InMemoryMap.java:162)
SourceSwitchingIterator.readNext(SourceSwitchingIterator.java: 139)
SourceSwitchingIterator.next(SourceSwitchingIterator.java: 123)
PartialMutationSkippingIterator.consume(InMemoryMap.java:108)
SkippingIterator.seek(SkippingIterator.java:43)



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