[
https://issues.apache.org/jira/browse/CASSANDRA-4307?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sylvain Lebresne updated CASSANDRA-4307:
----------------------------------------
Attachment: 4307.txt
I believer you're right, good catch!
Attaching patch to re-add the overwrite of isMarkedForDelete in DeletedColumn.
We shouldn't have removed it since DeletedColumn should never ever be
interpreted as live columns, even with lack of node synchronization (it's ok
for expiring columns though).
> isMarkedForDelete can return false if it is a few seconds in the future
> -----------------------------------------------------------------------
>
> Key: CASSANDRA-4307
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4307
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 1.1.0
> Reporter: Wade Simmons
> Fix For: 1.1.2
>
> Attachments: 4307.txt
>
>
> The patch in CASSANDRA-3716 causes some weird issues to arrise when server
> times don't exactly match up (and since the resolution is seconds, it is easy
> to be off by just enough to see it).
> I am seeing a case where during schema propagation .isMarkedForDelete() is
> checked, but the timestamp is a few seconds in the future because the schema
> was sent from a different node. The code then happily tries to interpret the
> value of the column as a String, but it is actually the Int encoded deletion
> time.
> Here is an example in the code that does this check and will do the wrong
> thing if the deletion timestamp is even just a few seconds in the future:
> https://github.com/apache/cassandra/blob/47f0cc5d38d272ec9f7d6179eb3ffa28c6f74107/src/java/org/apache/cassandra/cql3/statements/SelectStatement.java#L607-609
> To prove that this is a problem, here is a stack trace of a machine trying to
> interpret the "localDeletionTime" value of a DeletedColumn as UTF-8 because
> the .isMarkedForDeletion() check failed:
> https://gist.github.com/deb064d4377d206368d3
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
