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https://issues.apache.org/jira/browse/COUCHDB-1716?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13605747#comment-13605747
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Jan Lehnardt commented on COUCHDB-1716:
---------------------------------------
Adding a timer:sleep(100) between the closing of the DB and reading the ref
count makes this always pass for me (ran this in a while(true) for a bit on the
mentioned machine.
Now I am really not sure if we are masking a true race condition though.
> 200-view-group-no-db-leaks.t fails spuriously
> ---------------------------------------------
>
> Key: COUCHDB-1716
> URL: https://issues.apache.org/jira/browse/COUCHDB-1716
> Project: CouchDB
> Issue Type: Bug
> Affects Versions: 1.3
> Reporter: Jan Lehnardt
>
> On the CI setup and in various manual reports, we see
> 200-view-group-no-db-leaks.t failing occasionally. On my Ubuntu 12.10 VM it
> is 10-20% of the time.
> The error is always:
> {noformat}
> not ok 20 - DB ref counter is only held by couch_db and couch_db_updater
> [info] [<0.117.0>] Index update finished for db:
> couch_test_view_group_db_leaks idx: _design/foo
> ---
> description: "DB ref counter is only held by couch_db and
> couch_db_updater"
> found: 3
> wanted: 2
> ...
> {noformat}
> I don’t know off-hand if this is a bug in our test or the ref counting code.
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