[jira] [Commented] (CASSANDRA-13341) Legacy deserializer can create empty range tombstones

["Sylvain Lebresne (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CASSANDRA-13341?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15936514#comment-15936514 ] 

Sylvain Lebresne commented on CASSANDRA-13341:
----------------------------------------------

Thanks, pushed a new commit with fixes for those. Re-triggered CI to be extra sure even though it's mostly updates to comments. 

> Legacy deserializer can create empty range tombstones
> -----------------------------------------------------
>
>                 Key: CASSANDRA-13341
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-13341
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Sylvain Lebresne
>            Assignee: Sylvain Lebresne
>             Fix For: 3.0.x, 3.11.x
>
>
> Range tombstones in the 2.x file format is a bit far-westy so you can actually get sequences of range tombstones like {{\[1, 4\]@3 \[1, 10\]@5}}. But the current legacy deserializer doesn't handle this correctly. On the first range, it will generate a {{INCL_START(1)@3}} open marker, but upon seeing the next tombstone it will decide to close the previously opened range and re-open with deletion time 5, so will generate {{EXCL_END_INCL_START(1)@3-5}}. That result in the first range being empty, which break future assertions in the code.



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