Hi,
We run dovecot 2.1 on 2 nodes with shared nfs storage. Index files are kept on local disk. Second node is usually used only for email snapshots access. If primary node fails it is configured to take place of the primary imap server.
Snapshots are additional namespaces with mail from various points in time. We need a way to easly copy multiple messages from snapshots to current mailboxes. It would be best to make current mailbox available as another namespace so one would simply copy messages from one folder to another.
Is it safe ? There will be times when given user is writing to the same nfs based Maildir mailbox from 2 nodes both of them having separate index files. What will happen if already present message gets copied back from the snapshot ?
Regards,
Michał Grzędzicki