Carl Yeksigian created CASSANDRA-11575:
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             Summary: Add out-of-process testing for CDC
                 Key: CASSANDRA-11575
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11575
             Project: Cassandra
          Issue Type: Sub-task
            Reporter: Carl Yeksigian
            Assignee: Carl Yeksigian


There are currently no dtests for the new cdc feature. We should have some, at 
least to ensure that the cdc files have a lifecycle that makes sense, and make 
sure that things like a continually cleaning daemon and a lazy daemon have the 
properties we expect; for this, we don't need to actually process the files, 
but make sure they fit the characteristics we expect from them. A more complex 
daemon would need to be written in Java.

I already hit a problem where if the cdc is over capacity, the cdc properly 
throws the WTE, but it will not reset after the overflow directory is undersize 
again. It is supposed to correct the size within 250ms and allow more writes.



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