[jira] [Created] (FLINK-13004) Correct the logic of needToCleanupState in KeyedProcessFunctionWithCleanupState

[Shang Yuanchun (Jira)]

Yun Tang created FLINK-13004:
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             Summary: Correct the logic of needToCleanupState in KeyedProcessFunctionWithCleanupState
                 Key: FLINK-13004
                 URL: https://issues.apache.org/jira/browse/FLINK-13004
             Project: Flink
          Issue Type: Bug
            Reporter: Yun Tang
            Assignee: Yun Tang


Current implementation of needToCleanupState in KeyedProcessFunctionWithCleanupState actually has potention bug:
{code:java}
protected Boolean needToCleanupState(Long timestamp) throws IOException {
   if (stateCleaningEnabled) {
      Long cleanupTime = cleanupTimeState.value();
      // check that the triggered timer is the last registered processing time timer.
      return null != cleanupTime && timestamp == cleanupTime;
   } else {
      return false;
   }
}
{code}
Please note that it directly use "==" to judge whether *Long* type timestamp and cleanupTime equals. However, if that value is larger than 127L, the result would actually return false instead of wanted true.



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