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From "Richard Low (JIRA)" <j...@apache.org>
Subject [jira] Created: (CASSANDRA-2039) LazilyCompactedRow doesn't add CFInfo to digest
Date Mon, 24 Jan 2011 10:59:43 GMT
LazilyCompactedRow doesn't add CFInfo to digest
-----------------------------------------------

                 Key: CASSANDRA-2039
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-2039
             Project: Cassandra
          Issue Type: Bug
          Components: Core
    Affects Versions: 0.7.0
            Reporter: Richard Low
            Priority: Minor


LazilyCompactedRow.update doesn't add the CFInfo or columnCount to the digest, so the hash
value in the Merkle tree does not include this data.  However, PrecompactedRow does include
this.  Two consequences of this are:
* Row-level tombstones are not compared when using LazilyCompactedRow so could remain inconsistent
* LazilyCompactedRow and PrecompactedRow produce different hashes of the same row, so if two
nodes have differing in_memory_compaction_limit_in_mb values, rows of size in between the
two limits will have different hashes so will always be repaired even when they are the same.

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