[jira] [Created] (KYLIN-3588) Potentially duplicate put to RemoveBlackoutRealizationsRule#filters map

["Ted Yu (JIRA)" <ji...@apache.org>]

Ted Yu created KYLIN-3588:
-----------------------------

             Summary: Potentially duplicate put to RemoveBlackoutRealizationsRule#filters map
                 Key: KYLIN-3588
                 URL: https://issues.apache.org/jira/browse/KYLIN-3588
             Project: Kylin
          Issue Type: Bug
            Reporter: Ted Yu


Here is related code:
{code}
        IRealizationFilter filter = filters.get(conf);
        if (filter == null) {
            try {
                Class<? extends IRealizationFilter> clz = ClassUtil.forName(conf.getQueryRealizationFilter(), IRealizationFilter.class);
                filter = clz.getConstructor(KylinConfig.class).newInstance(conf);
            } catch (Exception e) {
                throw new RuntimeException(e);
            }
            filters.put(conf, filter);
{code}
Two threads may find out there is no filter for conf, they would proceed with creation of IRealizationFilter instances and try to put into the map.



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