[CASSANDRA-16155] ByteBufferAccessor cast exceptions are thrown when trying to query a virtual table

• Type: Bug
• Status: Resolved
• Priority: Normal
• Resolution: Fixed
• Fix Version/s: 4.0-beta3, 4.0
• Component/s: Feature/Virtual Tables
• Bug Category: Availability - Response Crash
• Severity: Critical
• Complexity: Normal
• Discovered By: User Report
• Platform: All
• Since Version: 4.0-beta2

Source Control Link

https://github.com/apache/cassandra/commit/896baf64159463d9dd72a8829eec8311f8a888da

Test and Documentation Plan

Tests included

• Assignee: Alex Petrov
• Reporter: Alex Petrov

Authors

Alex Petrov

Reviewers

Caleb Rackliffe, Chris Lohfink

• Created: 01/Oct/20 14:26
• Updated: 03/Jan/21 17:02
• Resolved: 12/Oct/20 08:20

Description

Start a fresh trunk node, and try to run

SELECT * FROM system_views.local_read_latency ;

You’ll get: 

ERROR [Native-Transport-Requests-1] 2020-09-30 09:44:45,099 ErrorMessage.java:457 - Unexpected exception during request
 java.lang.ClassCastException: org.apache.cassandra.db.marshal.ByteBufferAccessor cannot be cast to java.lang.String
         at org.apache.cassandra.serializers.AbstractTextSerializer.serialize(AbstractTextSerializer.java:29)
         at org.apache.cassandra.db.marshal.AbstractType.decompose(AbstractType.java:131) 

 

Issue Links

• blocks: CASSANDRA-15935 Improve machinery for testing consistency in presence of range movements
• is duplicated by: CASSANDRA-16178 ByteBufferAccessor throws ClassCastException when trying to query system_views.local_read_latency