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Posted to commits@cassandra.apache.org by "Sam Tunnicliffe (JIRA)" <ji...@apache.org> on 2019/04/16 13:00:00 UTC

[jira] [Created] (CASSANDRA-15086) Illegal column names make legacy sstables unreadable in 3.0/3.x

Sam Tunnicliffe created CASSANDRA-15086:
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             Summary: Illegal column names make legacy sstables unreadable in 3.0/3.x
                 Key: CASSANDRA-15086
                 URL: https://issues.apache.org/jira/browse/CASSANDRA-15086
             Project: Cassandra
          Issue Type: Bug
          Components: Local/SSTable
            Reporter: Sam Tunnicliffe
            Assignee: Sam Tunnicliffe


CASSANDRA-10608 adds extra validation when decoding a bytebuffer representing a legacy cellname. If the table is not COMPACT and the column name component of the cellname refers to a primary key column, an IllegalArgumentException is thrown. It looks like the original intent of 10608 was to prevent Thrift writes from inserting these invalid cells, but the same code path is exercised on the read path. The problem is that this kind of cells may exist in pre-3.0 sstables, either due to Thrift writes or through side loading of externally generated SSTables. Following an upgrade to 3.0, these partitions become unreadable, breaking both the read and compaction paths (and so also upgradesstables). Scrub in 2.1 does not help here as it blindly reproduces the invalid cells.



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