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https://issues.apache.org/jira/browse/ACCUMULO-4420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15431999#comment-15431999
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Josh Elser commented on ACCUMULO-4420:
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Thanks, Dan!
> Possible divide-by-zero exception when closing BatchWriter
> ----------------------------------------------------------
>
> Key: ACCUMULO-4420
> URL: https://issues.apache.org/jira/browse/ACCUMULO-4420
> Project: Accumulo
> Issue Type: Bug
> Components: core
> Affects Versions: 1.6.5, 1.7.2
> Reporter: Daniel Blum
> Priority: Minor
>
> TabletServerBatchWriter.logStats will throw a divide-by-zero exception if
> numBatches is 0 (i.e., no batches have been written).
> There are actually no checks for 0 divisors anywhere in the method, so other
> such exceptions are possible, as are lesser issues ("Average send rate" and
> some other stats come out as NaN when no batches have been written, for
> example).
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