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https://issues.apache.org/jira/browse/LUCENE-4982?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13650009#comment-13650009
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Shai Erera commented on LUCENE-4982:
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I thought about this some more and I realize that getComputedActualSizeInBytes
works as expected. checkDiskFull should only trip if the Directory size has
reached the limit, and it cannot tell how many bytes are pending in a buffer.
The test would fail not only w/ RAMDirectory, but also a Directory which
buffers writes (which I believe all our directories do), and therefore flush()
is important for the test.
So to summarize the changes in this issue:
* Added checkDiskFull to MockIOWrapper so it can trip writeBytes and copyBytes.
* Changed checkDiskFull to do {{freeSpace < len}} because {{freeSpace == len}}
is still valid.
* Added a test
I plan to commit this tomorrow.
> Make MockIndexOutputWrapper check disk full on copyBytes
> --------------------------------------------------------
>
> Key: LUCENE-4982
> URL: https://issues.apache.org/jira/browse/LUCENE-4982
> Project: Lucene - Core
> Issue Type: Improvement
> Components: modules/test-framework
> Reporter: Shai Erera
> Assignee: Shai Erera
> Attachments: LUCENE-4982.patch, LUCENE-4982.patch, LUCENE-4982.patch
>
>
> While working on the consistency test for Replicator (LUCENE-4975), I noticed
> that I don't trip disk-full exceptions and tracked it down to
> MockIndexOutputWrapper.copyBytes not doing these checks like writeBytes. I'd
> like to add this check.
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