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https://issues.apache.org/jira/browse/SOLR-5914?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13949893#comment-13949893
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Mark Miller commented on SOLR-5914:
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bq. So I still argue that my commit was a better cleanup than yours.
I don't agree :) Mine fixes the issue and doesn't do contentious things like
remove the dataDir or the system property that controls cleaning it up. Your
also is not finished - you state above that your stopping your work and that
you sunk more than 3 hours into it.
My changes fix things to work as currently designed and took me less than 30
minutes.
The difference that you have fallen in love with is simply called
TestUtil.createTmpDir vs using dataDir - I can't find it in myself to argue
about that, but it seems totally unrelated anyway.
You have a path that you have spent hours on and still needs work and wants to
do contentious things. I have a path that took me less than 30 min and is done.
Great, now I don't have to worry about lots of data not getting cleaned up, we
can look at your slower path :)
Merging up your branch won't take me any time at all, and we can properly
discuss how this might be handled going forward. I won't make you go and make 3
hours of changes again :)
> Almost all Solr tests no longer cleanup their temp dirs on Windows
> ------------------------------------------------------------------
>
> Key: SOLR-5914
> URL: https://issues.apache.org/jira/browse/SOLR-5914
> Project: Solr
> Issue Type: Bug
> Components: Tests
> Affects Versions: 4.8
> Reporter: Uwe Schindler
> Assignee: Dawid Weiss
> Priority: Critical
> Fix For: 4.8
>
> Attachments: SOLR-5914 .patch, SOLR-5914 .patch,
> branch4x-jenkins.png, build-plugin.jpg, trunk-jenkins.png
>
>
> Recently the Windows Jenkins Build server has the problem of all-the time
> running out of disk space. This machine runs 2 workspaces (4.x and trunk) and
> has initially 8 Gigabytes of free SSD disk space.
> Because of the recently all-the time failing tests, the test framework does
> not forcefully clean up the "J0" working folders after running tests. This
> leads to the fact, that the workspace is filled with tons of Solr Home dirs.
> I tried this on my local machine:
> - run ant test
> - go to build/.../test/J0 and watch folders appearing: Almost every test no
> longer cleans up after shutting down, leaving a million of files there. This
> is approx 3 to 4 Gigabytes!!!
> In Lucene the folders are correctly removed. This has happened recently, so i
> think we have some code like ([~erickerickson] !!!):
> {{new Properties().load(new FileInputStream(...))}} that does not close the
> files. Because of this, the test's afterClass cannot clean up folders
> anymore. If you look in the test log, you see messages like "{{!!!! WARNING:
> best effort to remove
> C:\Users\JenkinsSlave\workspace\Lucene-Solr-4.x-Windows\solr\build\solr-core\test\J0\.\org.apache.solr.cloud.TestShortCircuitedRequests-1395693845226
> FAILED !!!!!}}" all the time.
> So if anybody committed some changes that might not close files correctly,
> please fix! Otherwise I have to disable testing on windows - and I will no
> longer run solr, tests, too: My local computer also uses gigabytes of temp
> space after running tests!
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