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gmane.mail.imap.cyrus |
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<[email protected]> |
Hi,
We have recently been working on a cyrus murder setup including CalDAV and CardDAV.
For IMAP there are two possibilities to achieve high availability & load balancing:
* Use the proxing capability to get to the right backend
* Connect to a random backend and use IMAP Login referrals to find the correct backend.
For *DAV it seems proxying should be possible, but we quickly found at least two issues which seems to tell me nobody is using it this way:
* PUT requests are not proxied (I put in a pull request to fix this: https://github.com/cyrusimap/cyrus-imapd/pull/4302)
* autocreate does not work (is attempted on the proxy instead of the backend).
The alternative approach that somewhat mirrors what IMAP login referrals do would be to use the *DAV discovery mechanism essentially doing a 30x redirect to the correct backend,
but I don't suppose this is currently implemented?
I could work on either solution but was wondering whether somebody has solved a similar issue, or whether I'm overlooking something.
Cheers,
Christian
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