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https://issues.apache.org/jira/browse/LUCENE-9158?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17020559#comment-17020559
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Adrien Grand commented on LUCENE-9158:
--------------------------------------

+1

> Fix tests to respect java.io.tmpdir by default
> ----------------------------------------------
>
>                 Key: LUCENE-9158
>                 URL: https://issues.apache.org/jira/browse/LUCENE-9158
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: general/test
>            Reporter: Robert Muir
>            Priority: Major
>         Attachments: LUCENE-9158.patch
>
>
> Currently the tests destroy your SSDs by writing temp test data to 
> {{build/test/}} in your checkout.
> It would be better to respect {{java.io.tmpdir}} for where all the temporary 
> files get written. This way, if someone has configured their 
> system/environment variables appropriately, it won't destroy SSD.
> On linux it may work by default in many cases, as a lot of linux systems 
> mount {{/tmp}} on tmpfs by default.
> On windows users could have created a [RAM 
> drive|https://en.wikipedia.org/wiki/List_of_RAM_drive_software] such as 
> {{R:}} and have {{TMP}} environment variable pointed at it, we should respect 
> that.



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