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https://issues.apache.org/jira/browse/LUCENE-5678?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Uwe Schindler reopened LUCENE-5678:
-----------------------------------


Reopen for backport after LUCENE-5727.

> Investigate to use FileoutputStream instead of RandomAccessFile in 
> FSIndexOutput
> --------------------------------------------------------------------------------
>
>                 Key: LUCENE-5678
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5678
>             Project: Lucene - Core
>          Issue Type: Task
>          Components: core/store
>            Reporter: Uwe Schindler
>            Assignee: Uwe Schindler
>             Fix For: 4.9, 5.0
>
>         Attachments: LUCENE-5678.patch, LUCENE-5678.patch, LUCENE-5678.patch, 
> LUCENE-5678.patch, LUCENE-5678.patch, LUCENE-5678.patch
>
>
> We no longer allow seeking in IndexOutput, so there is no need to use 
> RandomAccessFile. We can change this with a < 1 KiB patch.
> Further improvements would be to merge this with OutputStreamIndexOutput, so 
> we get many simplifications.
> There is also no reason anymore to separate DataOutput from IndexOutput. The 
> only additional thing is IndexOutput#getFilePointer(), which is handled by  
> an internal counter (does not use getFilePointer of the underlying RAF) and 
> checksums.



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