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https://issues.apache.org/jira/browse/COUCHDB-326?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13155606#comment-13155606
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Paul Joseph Davis commented on COUCHDB-326:
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@Dave
Why would an audio/visual program be interfering with CouchDB's data
directories?
> Occasional {"error":"error","reason":"eacces"} errors deleting a database on
> Windows
> ------------------------------------------------------------------------------------
>
> Key: COUCHDB-326
> URL: https://issues.apache.org/jira/browse/COUCHDB-326
> Project: CouchDB
> Issue Type: Bug
> Affects Versions: 0.9
> Environment: Windows, couch 0.9, erlang R12B 5.6.5
> Reporter: Mark Hammond
>
> On Windows, occasionally you will see errors attempting to delete a database.
> This manifests itself by 10-30% of the test suite failing on Windows. If
> you retry the tests that failed, they will usually pass on subsequent
> attempts. Running the tests individually causes them to fail roughly 10% of
> the time.
> The log output shown is:
> [debug] [<0.18650.6>] httpd 500 error response:
> {"error":"error","reason":"eacces"}
> [info] [<0.18650.6>] 127.0.0.1 - - 'DELETE' /test_suite_db/ 500
> A slightly snipped transcript from IRC:
> (2:58:32 PM) markh: I see a number of INFO logs "Shutting down view group
> server, monitored db is closing." directly before the error. I was guessing
> the file may be unlink'd before one of those workers actually closes its
> handle?
> (2:58:54 PM) alisdair: yeah, it's probably a race condition
> (2:59:13 PM) alisdair: where the delete is tried before the fd is let go
> (2:59:26 PM) alisdair: the reader fd that is
> (2:59:32 PM) markh: yeah
> ...
> (3:11:47 PM) alisdair: i can't find an obvious deadlock
> (3:12:18 PM) alisdair: couch_server:delete explicitly waits for the db
> process to exit
> (3:12:23 PM) alisdair: before deleting it
> (3:15:15 PM) alisdair: i think i found the problem
> (3:15:23 PM) alisdair: but i need a windows machine to confirm
> (3:15:30 PM) alisdair: i'll look into it tomorrow
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