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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Created] (CASSANDRA-13069) Local batchlog for MV may not be correctly written on node movements
Date Wed, 21 Dec 2016 16:02:58 GMT
Sylvain Lebresne created CASSANDRA-13069:
--------------------------------------------

             Summary: Local batchlog for MV may not be correctly written on node movements
                 Key: CASSANDRA-13069
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13069
             Project: Cassandra
          Issue Type: Bug
            Reporter: Sylvain Lebresne
            Assignee: Paulo Motta


Unless I'm really reading this wrong, I think the code [here|https://github.com/apache/cassandra/blob/trunk/src/java/org/apache/cassandra/service/StorageProxy.java#L829-L843],
which comes from CASSANDRA-10674, isn't working properly.

More precisely, I believe we can have both paired and unpaired mutations, so that both {{if}}
can be taken, but if that's the case, the 2nd write to the batchlog will basically overwrite
(remove) the batchlog write of the 1st {{if}} and I don't think that's the intention. In practice,
this means "paired" mutation won't be in the batchlog, which mean they won't be replayed at
all if they fail.



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