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Posted to issues@kylin.apache.org by "Ted Yu (JIRA)" <ji...@apache.org> on 2017/09/18 21:03:00 UTC

[jira] [Created] (KYLIN-2876) Ineffective check in ExternalAclProvider

Ted Yu created KYLIN-2876:
-----------------------------

             Summary: Ineffective check in ExternalAclProvider
                 Key: KYLIN-2876
                 URL: https://issues.apache.org/jira/browse/KYLIN-2876
             Project: Kylin
          Issue Type: Bug
            Reporter: Ted Yu


{code}
        if (inited)
            return singleton;

        synchronized (ExternalAclProvider.class) {
            if (inited)
                return singleton;
{code}
If one thread assigns inited but without initialization complete, another thread may read the value of inited being true and use the partial result.



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