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Posted to server-dev@james.apache.org by "Tellier Benoit (JIRA)" <se...@james.apache.org> on 2017/06/16 03:32:00 UTC
[jira] [Updated] (JAMES-2037) Avoid reading messages when building
UID <=> MSN mapping upon SELECT
[ https://issues.apache.org/jira/browse/JAMES-2037?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tellier Benoit updated JAMES-2037:
----------------------------------
Component/s: IMAPServer
> Avoid reading messages when building UID <=> MSN mapping upon SELECT
> --------------------------------------------------------------------
>
> Key: JAMES-2037
> URL: https://issues.apache.org/jira/browse/JAMES-2037
> Project: James Server
> Issue Type: Improvement
> Components: IMAPServer
> Reporter: Tellier Benoit
>
> SelectedMailboxImpl builds the UID <=> MSN mapping for later uses.
> Today, to do so, we read messages, and keep their UID.
> Needless to say, for some back-ends reading messages is an expensive operation requiring "soft joins" (Cassandra). We should offer a way to directly get an Iterator of UIDs in the mailbox.
> That would allow further optimizations, mostly on Cassandra implementations, avoid thousands of queries upon IMAP SELECT commands on large mailboxes.
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