[CASSANDRA-6966] Errors with Super Columns, mixup of 1.2 and 2.0

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 2.0.7
• Severity: Normal
• Assignee: Sylvain Lebresne Assign to me
• Reporter: Nicolas Lalevée

Authors

Sylvain Lebresne

Reviewers

Aleksey Yeschenko

• Created: 01/Apr/14 11:27
• Updated: 16/Apr/19 09:31
• Resolved: 02/Apr/14 12:30

Description

On our test cluster, we tried a upgrade of Cassandra from 1.2.11 to 2.0.6. During the time we were running with 2 different versions of cassandra, there was errors in the logs:

ERROR [WRITE-/10.10.0.41] 2014-03-19 11:23:27,523 OutboundTcpConnection.java (line 234) error writing to /10.10.0.41
java.lang.RuntimeException: Cannot convert filter to old super column format. Update all nodes to Cassandra 2.0 first.
at org.apache.cassandra.db.SuperColumns.sliceFilterToSC(SuperColumns.java:357)
at org.apache.cassandra.db.SuperColumns.filterToSC(SuperColumns.java:258)
at org.apache.cassandra.db.ReadCommandSerializer.serializedSize(ReadCommand.java:192)
at org.apache.cassandra.db.ReadCommandSerializer.serializedSize(ReadCommand.java:134)
at org.apache.cassandra.net.MessageOut.serialize(MessageOut.java:116)
at org.apache.cassandra.net.OutboundTcpConnection.writeInternal(OutboundTcpConnection.java:251)
at org.apache.cassandra.net.OutboundTcpConnection.writeConnected(OutboundTcpConnection.java:203)
at org.apache.cassandra.net.OutboundTcpConnection.run(OutboundTcpConnection.java:151)

I confirm we do have old style super columns which were designed when cassandra was 1.0.x.

Since in our test cluster the replication factor is 1, I can see errors on the client side, since 1 node among 2 was down. So I don't know for sure if this error in cassandra affected the client, the time frame is too short to be sure from the logs.

Issue Links

• is related to: CASSANDRA-14414 Errors in Supercolumn support in 2.0 upgrade