FetchProcessor optimization for mailboxes with non compacted UIDs
------------------------------------------------------------------
Key: IMAP-258
URL: https://issues.apache.org/jira/browse/IMAP-258
Project: JAMES Imap
Issue Type: Improvement
Components: Mailbox
Affects Versions: 0.2
Reporter: Wojtek Strzalka
Fix For: 0.2
Current FetchProcessor implementation divides the requested message range to
batch set using some configuration parameter to avoid OOM.
Then for each batch range it calls the mailbox to return messages in this
range. This can lead to serious performance problems when you have mailbox with
non-consistent UID values. I.e. you can have mailbox with 2 messages in it
message 1 UID=1
message 2 UID=1000000
Regular client fetch will look like "UID FETCH 1:1000000 (...)" - this is real
case what MS Outlook will do.
So the current mail implementation with default batch set will split it to 10k
of batches and then call mailbox 10k times......
--
This message is automatically generated by JIRA.
-
For more information on JIRA, see: http://www.atlassian.com/software/jira
---------------------------------------------------------------------
To unsubscribe, e-mail: [email protected]
For additional commands, e-mail: [email protected]
