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Posted to commits@cassandra.apache.org by "Sylvain Lebresne (JIRA)" <ji...@apache.org> on 2017/03/16 16:18:41 UTC
[jira] [Updated] (CASSANDRA-13340) Bugs handling range tombstones
in the sstable iterators
[ https://issues.apache.org/jira/browse/CASSANDRA-13340?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sylvain Lebresne updated CASSANDRA-13340:
-----------------------------------------
Status: Patch Available (was: Open)
Attaching fix for both issue with unit test below. I tried to explain the problems it solves and how it solves it in the patches.
| [13340-3.0|https://github.com/pcmanus/cassandra/commits/13340-3.0] | [utests|http://cassci.datastax.com/job/pcmanus-13340-3.0-testall] | [dtests|http://cassci.datastax.com/job/pcmanus-13340-3.0-dtest] |
| [13340-3.11|https://github.com/pcmanus/cassandra/commits/13340-3.11] | [utests|http://cassci.datastax.com/job/pcmanus-13340-3.11-testall] | [dtests|http://cassci.datastax.com/job/pcmanus-13340-3.11-dtest] |
> Bugs handling range tombstones in the sstable iterators
> -------------------------------------------------------
>
> Key: CASSANDRA-13340
> URL: https://issues.apache.org/jira/browse/CASSANDRA-13340
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sylvain Lebresne
> Assignee: Sylvain Lebresne
> Priority: Critical
> Fix For: 3.0.x, 3.11.x
>
>
> There is 2 bugs in the way sstable iterators handle range tombstones:
> # empty range tombstones can be returned due to a strict comparison that shouldn't be.
> # the sstable reversed iterator can actually return completely bogus results when range tombstones are spanning multiple index blocks.
> The 2 bugs are admittedly separate but as they both impact the same area of code and are both range tombstones related, I suggest just fixing both here (unless something really really mind).
> Marking the ticket critical mostly for the 2nd bug: it can truly make use return bad results on reverse queries.
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