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.. _imap-developer-guidance-var_directory_structure:
.. Note: This document was converted from the original by Nic Bernstein
(Onlight). Any formatting mistakes are my fault and not the
original author's.
Cyrus IMAP Server: var directory structure
==========================================
Directory structure under /var/spool/imap
-----------------------------------------
::
stage./
Normal staging directory
sync./
Staging directory for replication system
Includes
sync./locks/*
which are lock files for each user on the system to prevent two
replication runs from trying to update the same account at the same time
(nothing disastrous should happen even without this lock, but the second
job in will get a bit confused if the target end changes under its feet,
and will probably drop back to a recovery mode.
user/
Familiar user.userid space.
Directory structure under /var/imap
-----------------------------------
Complete list::
drwxr-xr-x 2 cyrus cyrus 232 Sep 7 08:21 db
drwxr-x--- 2 cyrus cyrus 112 Sep 7 19:51 db.backup1
drwxr-x--- 2 cyrus cyrus 112 Sep 7 19:21 db.backup2
-rw-r----- 1 cyrus cyrus 20799488 Sep 7 19:51 deliver.db
drwxr-xr-x 2 cyrus cyrus 48 Sep 7 10:16 log
-rw-r----- 1 cyrus cyrus 1995000 Sep 7 19:38 mailboxes.db
-rw-r--r-- 1 cyrus cyrus 10 Jun 2 10:08 master_machine
-rw-r--r-- 1 cyrus cyrus 71 Sep 7 08:21 master_uuid
drwxr-xr-x 2 cyrus cyrus 48 Jun 2 10:08 msg
drwxr-xr-x 2 cyrus cyrus 1872 Sep 7 19:55 proc
drwxr-xr-x 28 cyrus cyrus 672 Jun 2 10:08 quota
drwxr-xr-x 2 cyrus cyrus 224 Sep 7 08:21 socket
drwxr-xr-x 2 cyrus cyrus 72 Sep 7 10:19 sync
drwxr-xr-x 28 cyrus cyrus 672 Jun 2 10:08 user
Most of that will be familiar. New entries are::
master_machine
Defines machine number in replication cluster. Used as sanity check
against master_uuid file. Sample content:
machine=1
master_uuid
Full information about UUID schema in use. See ./uuid for details.
Sample content:
schema=1
machine=1
timestamp_generation=0
master_start_time=1062919294
sync/current
Transaction log from IMAP, POP and LMTP daemons, typically feed into
sync_client running as asynchronous replication engine.
Rotated to be sync/current-<pid> by asynchronous runner.
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