[Dovecot] alpha4 and zlib-plugin?
Hi, I saw the zlib-plugin reference in the alpha4 ChangeLog notes are searched the list for info about it. The only reference I found was from Timo back in March 2005. Questions:
- Is this going to become a standard part of version 1.0?
- Any plans or ability to make it read/write to a gzipped mailbox, or is this possible? Or will it always be read-only?
- How does a mailbox get gzipped? From within dovecot somehow, or only by external action?
Jeff Earickson Colby College
Jeff A. Earickson wrote:
Hi, I saw the zlib-plugin reference in the alpha4 ChangeLog notes are searched the list for info about it. The only reference I found was from Timo back in March 2005. Questions: 2) Any plans or ability to make it read/write to a gzipped mailbox, or is this possible? Or will it always be read-only?
The trouble is (especially for a large mbox) it takes a lot of CPU work to uncompress and recompress the whole file. You could make it read/write, but it likely wouldn't be worth it.
- How does a mailbox get gzipped? From within dovecot somehow, or only by external action?
The ideal application of gzip'd mbox is for mailing list archives. Periodicaly (such as end of each month), you rotate your mbox, gzip it (cron job or manually).
Someone on the list (Sorry for forgetting your name!) produced a plugin for gzip'd Maildir, which would (in theory, at least) be much easier to read/write, but wouldn't get anywhere near the space savings, due to disk block size and lack of inter-message context.
-- Curtis Maloney cmaloney@cardgate.net
On Thu, 2005-10-20 at 16:39 -0400, Jeff A. Earickson wrote:
Hi, I saw the zlib-plugin reference in the alpha4 ChangeLog notes are searched the list for info about it. The only reference I found was from Timo back in March 2005. Questions:
- Is this going to become a standard part of version 1.0?
It'll always stay as a plugin since it's kind of a kludge and not very useful for most people. I'm not sure if I'll start including plugins in the main Dovecot tarball and make it easy to compile them either statically to binaries or as modules. Maybe..
- Any plans or ability to make it read/write to a gzipped mailbox, or is this possible? Or will it always be read-only?
No plans for write-support. It's useful mostly for read-only archive mboxes.
- How does a mailbox get gzipped? From within dovecot somehow, or only by external action?
No plans for internal gzipping.
participants (3)
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Curtis Maloney
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Jeff A. Earickson
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Timo Sirainen