Alan Wang created CASSANDRA-21692:
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Summary: Accord LWT can discard condition in IF statement +
Journal error handling incorrectly calculates bufferPosition
Key: CASSANDRA-21692
URL: https://issues.apache.org/jira/browse/CASSANDRA-21692
Project: Apache Cassandra
Issue Type: Bug
Components: Accord
Reporter: Alan Wang
Assignee: Alan Wang
1. When we have a condition on a static row and a condition on a regular row we
can discard the condition on the regular row for Accord LWTs
2. L148 and L158 in
[https://github.com/apache/cassandra/blob/50a10d42a5d633150fbf4ae518b4da85466472b2/src/java/org/apache/cassandra/journal/EntrySerializer.java#L148],
should be start + headerSize instead of from.position() + headerSize and start
+ totalSize instead of from.position() respectively since crc.update(from) in
readAndUpdateHeaderCrc changes the buffer's position
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