Better handle concurrent FETCH and EXPUNGE
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Key: IMAP-328
URL: https://issues.apache.org/jira/browse/IMAP-328
Project: JAMES Imap
Issue Type: Improvement
Affects Versions: 0.2.1
Reporter: Norman Maurer
At the moment it MAY be possible for clients which do "slow" FETCHES to fail
during stream the message content back to the client of another client (or
session) EXPUNGE the same message at the same time. From a talk at ##imap
(freenode irc) other IMAP Server implementations handle this kind of stuff more
sensible (like dovecot and cyrus).
There are a few options to handle this kind of stuff:
1) Lock the mailbox during FETCH and block EXPUNGE until its done
2) Only do a "pseudo" expunge and add it to some "commitlog" which will get
executed when the FETCH is done. To be 100 % sure its necessary to store it
permanet but I think in most cases a in memory representation MAY be enough
I think 2) is the way to go
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