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https://issues.apache.org/jira/browse/CASSANDRA-2653?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Sylvain Lebresne updated CASSANDRA-2653:
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Attachment: 2653_v2.patch
I actually agree with taking the impact. Especially given that there is
actually very little cases where it will make an actual difference anyway.
Attaching patch (2653_v2, based on 0.7) that implement the idea and add back
the sanity check.
> index scan errors out when zero columns are requested
> -----------------------------------------------------
>
> Key: CASSANDRA-2653
> URL: https://issues.apache.org/jira/browse/CASSANDRA-2653
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7.6, 0.8.0 beta 2
> Reporter: Jonathan Ellis
> Assignee: Sylvain Lebresne
> Priority: Minor
> Fix For: 0.7.7, 0.8.1
>
> Attachments:
> 0001-Handle-data-get-returning-null-in-secondary-indexes.patch,
> 0001-Handle-null-returns-in-data-index-query-v0.7.patch,
> 0001-Reset-SSTII-in-EchoedRow-constructor.patch, 2653_v2.patch,
> v1-0001-CASSANDRA-2653-reproduce-regression.txt
>
>
> As reported by Tyler Hobbs as an addendum to CASSANDRA-2401,
> {noformat}
> ERROR 16:13:38,864 Fatal exception in thread Thread[ReadStage:16,5,main]
> java.lang.AssertionError: No data found for
> SliceQueryFilter(start=java.nio.HeapByteBuffer[pos=10 lim=10 cap=30],
> finish=java.nio.HeapByteBuffer[pos=17 lim=17 cap=30], reversed=false,
> count=0] in DecoratedKey(81509516161424251288255223397843705139,
> 6b657931):QueryPath(columnFamilyName='cf', superColumnName='null',
> columnName='null') (original filter
> SliceQueryFilter(start=java.nio.HeapByteBuffer[pos=10 lim=10 cap=30],
> finish=java.nio.HeapByteBuffer[pos=17 lim=17 cap=30], reversed=false,
> count=0]) from expression 'cf.626972746864617465 EQ 1'
> at
> org.apache.cassandra.db.ColumnFamilyStore.scan(ColumnFamilyStore.java:1517)
> at
> org.apache.cassandra.service.IndexScanVerbHandler.doVerb(IndexScanVerbHandler.java:42)
> at
> org.apache.cassandra.net.MessageDeliveryTask.run(MessageDeliveryTask.java:72)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)
> at java.lang.Thread.run(Thread.java:662)
> {noformat}
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