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https://issues.apache.org/jira/browse/CASSANDRA-14896?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Jason Brown resolved CASSANDRA-14896.
-------------------------------------
    Resolution: Fixed

Committed v2 patch as {{f3609995c09570d523527d9bd0fd69c2bc65d986}} with updated 
comments per [~aweisberg]'s recommendation.

> 3.0 schema migration pulls from later version incompatible nodes
> ----------------------------------------------------------------
>
>                 Key: CASSANDRA-14896
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-14896
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core, CQL
>            Reporter: Ariel Weisberg
>            Assignee: Jason Brown
>            Priority: Blocker
>              Labels: 4.0-pre-rc-bugs
>             Fix For: 4.0
>
>
> I saw this in upgrade tests. The checks in 3.0 and 3.11 are slightly 
> different and 3.0 in some scenarios it is pulling schema from a later 
> version. This causes upgrade tests to have errors in the logs due to 
> additional columns from configurable storage port.
> {noformat}
> Failed: Error details: 
> Errors seen in logs for: node2
> node2: ERROR [MessagingService-Incoming-/127.0.0.1] 2018-11-15 21:17:46,739 
> CassandraDaemon.java:207 - Exception in thread 
> Thread[MessagingService-Incoming-/127.0.0.1,5,main]
> java.lang.RuntimeException: Unknown column additional_write_policy during 
> deserialization
>       at 
> org.apache.cassandra.db.Columns$Serializer.deserialize(Columns.java:433) 
> ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.SerializationHeader$Serializer.deserializeForMessaging(SerializationHeader.java:440)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.rows.UnfilteredRowIteratorSerializer.deserializeHeader(UnfilteredRowIteratorSerializer.java:190)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.partitions.PartitionUpdate$PartitionUpdateSerializer.deserialize30(PartitionUpdate.java:686)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.partitions.PartitionUpdate$PartitionUpdateSerializer.deserialize(PartitionUpdate.java:674)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.Mutation$MutationSerializer.deserialize(Mutation.java:337)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.db.Mutation$MutationSerializer.deserialize(Mutation.java:346)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.service.MigrationManager$MigrationsSerializer.deserialize(MigrationManager.java:641)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.service.MigrationManager$MigrationsSerializer.deserialize(MigrationManager.java:624)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at org.apache.cassandra.net.MessageIn.read(MessageIn.java:98) 
> ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.receiveMessage(IncomingTcpConnection.java:201)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.receiveMessages(IncomingTcpConnection.java:178)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
>       at 
> org.apache.cassandra.net.IncomingTcpConnection.run(IncomingTcpConnection.java:92)
>  ~[apache-cassandra-3.0.17.jar:3.0.17]
> {noformat}



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