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https://issues.apache.org/jira/browse/CASSANDRA-8513?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Benedict reassigned CASSANDRA-8513:
-----------------------------------
Assignee: Benedict
> SSTableScanner may not acquire reference, but will still release it when
> closed
> -------------------------------------------------------------------------------
>
> Key: CASSANDRA-8513
> URL: https://issues.apache.org/jira/browse/CASSANDRA-8513
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Reporter: Benedict
> Assignee: Benedict
> Fix For: 2.1.3
>
> Attachments: 8513.txt
>
>
> getRangeSlice and related methods do not require a reference to perform a
> safe read, so during one it is possible for SSTableScanner to fail to acquire
> a reference to the table it's being created on. In this case it doesn't fail,
> but it also doesn't log that no reference was acquired; on close, it still
> releases the reference that it never held.
> We can fix this one of two ways: we can tell the scanner if we require a
> reference to be acquired; or we can track if one was obtained. The former is
> a bit more invasive but probably better, since we probably care if we fail to
> grab one in cases where we need it, and probably don't want to grab one
> otherwise.
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