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https://issues.apache.org/jira/browse/MAILBOX-210?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tellier Benoit updated MAILBOX-210:
-----------------------------------
Attachment: fix_cassandra_uid_provider.patch
Also do conditionnal updates when UID is equal to 0.
> A data race is possible with Cassandra UID generation
> -----------------------------------------------------
>
> Key: MAILBOX-210
> URL: https://issues.apache.org/jira/browse/MAILBOX-210
> Project: James Mailbox
> Issue Type: Bug
> Reporter: Tellier Benoit
> Attachments: fix_cassandra_uid_provider.patch
>
>
> Nothing as critical as MAILBOX-209 but there is a race condition if the UID
> current value is null.
> If so we set the value to one without checking if the value was updated.
> This may cause duplicated UID for UID 1, and possible message loss ( as the
> primary key is the pair of the mailbox ID and the message UID ). We definitly
> don't want that to happen.
> Solving this bug is easy : we should also use conditionnal updates when UID
> is equal to 0.
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