[jira] [Created] (HDDS-2680) Fix updating lastAppliedIndex in OzoneManagerStateMachine

["Bharat Viswanadham (Jira)" <ji...@apache.org>]

Bharat Viswanadham created HDDS-2680:
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             Summary: Fix updating lastAppliedIndex in OzoneManagerStateMachine
                 Key: HDDS-2680
                 URL: https://issues.apache.org/jira/browse/HDDS-2680
             Project: Hadoop Distributed Data Store
          Issue Type: Bug
            Reporter: Bharat Viswanadham
            Assignee: Bharat Viswanadham


This Jira is to fix a bug that has been caused by HDDS-2637.

Now we have applyTransactionMap where we put all entries of ratisTransactionIndex before complete.

 

And when updating lastAppliedIndex, now there is a chance that we updateLastAppliedIndex before DoubleBuffer flush has committed transactions to DB.

 

 

Let's take 1-10 are apply transaction entries which are not flushed, 11th is indexUpdate a metadata/conf entry transaction, now when notifyIndexUpdate is called with 11, we updateLastAppliedIndex to 11. (Which we should not do) This Jira is to fix this issue.



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