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https://issues.apache.org/jira/browse/CASSANDRA-3450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lanny Ripple updated CASSANDRA-3450:
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Attachment: v1-0001-CASSANDRA-3450.txt
> maybeInit in ColumnFamilyRecordReader can cause rows to be empty but not null
> -----------------------------------------------------------------------------
>
> Key: CASSANDRA-3450
> URL: https://issues.apache.org/jira/browse/CASSANDRA-3450
> Project: Cassandra
> Issue Type: Bug
> Components: Hadoop
> Affects Versions: 1.0.1
> Reporter: Lanny Ripple
> Labels: patch
> Attachments: v1-0001-CASSANDRA-3450.txt
>
>
> 1) In {{ColumnFamilyRecordReader}} {{isPredicateEmpty}} needs bracing to
> correctly place the {{else if}} to the properly controlling {{if}}.
> 1a) {{isPredicateEmpty}} should use an || in the getSlice_range predicate
> rather than &&.
> 2) In {{ColumnFamilyRecordReader}} {{computeNext()}} calls {{maybeInit()}}
> and then if {{ros}} is not null it is indexed into. {{maybeInit()}} could
> fetch new data, determine the associated slice predicate is empty, and end up
> removing all the rows if all columns turned out to be empty. There is no
> check for {{rows.isEmpty()}} after the possible removal of all rows.
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