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https://issues.apache.org/jira/browse/CASSANDRA-9530?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Alex Petrov reassigned CASSANDRA-9530:
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Assignee: Alex Petrov
> SSTable corruption can trigger OOM
> ----------------------------------
>
> Key: CASSANDRA-9530
> URL: https://issues.apache.org/jira/browse/CASSANDRA-9530
> Project: Cassandra
> Issue Type: Bug
> Reporter: Sylvain Lebresne
> Assignee: Alex Petrov
>
> If a sstable is corrupted so that the length of a given is bogus, we'll still
> happily try to allocate a buffer of that bogus size to read the value, which
> can easily lead to an OOM.
> We should probably protect against this. In practice, a given value can be so
> big since it's limited by the protocol frame size in the first place. Maybe
> we could add a max_value_size_in_mb setting and we'd considered a sstable
> corrupted if it was containing a value bigger than that.
> I'll note that this ticket would be a good occasion to improve
> {{BlacklistingCompactionsTest}}. Typically, it currently generate empty
> values which makes it pretty much impossible to get the problem described
> here. And as described in CASSANDRA-9478, it also doesn't test properly for
> thing like early opening of compaction results. We could try to randomize as
> much of the parameters of this test as possible to make it more likely to
> catch any type of corruption that could happen.
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