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Posted to commits@cassandra.apache.org by "Brandon Williams (JIRA)" <ji...@apache.org> on 2013/04/02 04:31:16 UTC
[jira] [Assigned] (CASSANDRA-5411) Unexpired hints can potentially
create previously deleted rows
[ https://issues.apache.org/jira/browse/CASSANDRA-5411?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Brandon Williams reassigned CASSANDRA-5411:
-------------------------------------------
Assignee: Brandon Williams
> Unexpired hints can potentially create previously deleted rows
> --------------------------------------------------------------
>
> Key: CASSANDRA-5411
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5411
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.10
> Environment: Ubuntu 10.04
> Reporter: Arya Goudarzi
> Assignee: Brandon Williams
>
> Per discussion here: http://www.mail-archive.com/user@cassandra.apache.org/msg28905.html
> Hints are TTLed to lowest gc_grace_seconds. If we have hints that are not replayed, and the administrator updates schema to have lower gc_grace seconds on some CF, chances are compactions will delete tombstones and history of delete gets lost. If the deleted row is in some hints CF, since the TTL is not updated, chances are it gets replayed and the deleted row comes back to life.
> I think it would be nice as part of schema migration, to also update the TTLs on hints that already exists on any nodes hints column family.
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