2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf

17 Aug 2020


      Hi All,
I currently have a small Dovecot server (Server A) and I've installed a
second dovecot mailbox server (server B) and am trying to sync mailboxes
from Server A to Server B.
Both servers sit behind two dovecot directors on separate hosts and have
identical config files (doveconf -n output below). Mailboxes on Server A
are on an NFS mount.
Server A has been working fine with no issues for a couple of years.
I'm running this command on Server A:
doveadm sync -u #user# tcp:#newservername#:24245
Small mailboxes with few items are syncing OK.. but most mailboxes fail
(sycn stops) with the following type of error: (Mailbox name, storage
file, UID and sizes vary).
dsync-local(#username#)<b2vTDKerOV/fAQAAZMK/0g>: Error: Mailbox INBOX:
Cache
/#usershomedirectory#/mdbox/mailboxes/INBOX/dbox-Mails/dovecot.index.cache:
Deleting corrupted cache record uid=9: UID 9: Broken physical size in
mailbox INBOX: read(/#usershomedirectory#/mdbox/storage/m.1) failed:
Cached message size larger than expected (60616 > 8688, box=INBOX, UID=9)
If I run it again, I'll get the same error, but with a new UID.
If I do a local migration instead of server to server, I still get the
errors.
e.g. doveadm sync -u #user# maildir:~/Maildir-test/
I tried running a force resync (doveadm force-resync -u #user# -f "*)
but it didn't help.
There's no issues from an imap client accessing any emails. Using
imapsync to sync affected mailboxes works fine for example. But... if I
then run a dsync on Server B (doveadm sync -u #user#
maildir:~/Maildir-test/) on an account that was successfully migrated
with imapsync, I get the issue again.
How worried should I be about these corrupted cache records, and any
ideas how to resolve?
Thanks in advance for your help!
Paul.
--- output of doveconf -n ---
2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf
Pigeonhole version 0.5.11 (6c69c917)
OS: Linux 5.3.0-1032-aws x86_64 Ubuntu 18.04.5 LTS
hostname = ###
lda_mailbox_autocreate = yes
lda_mailbox_autosubscribe = yes
login_trusted_networks = ###
mail_fsync = always
mail_location = mdbox:~/mdbox
mail_plugins = " acl notify replication"
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope
encoded-character vacation subaddress comparator-i;ascii-numeric
relational regex imap4flags copy include variables body enotify
environment mailbox date index ihave duplicate mime foreverypart extracttext
mmap_disable = yes
namespace inbox {
inbox = yes
location =
mailbox Drafts {
special_use = \Drafts
}
mailbox Junk {
special_use = \Junk
}
mailbox Sent {
special_use = \Sent
}
mailbox "Sent Messages" {
special_use = \Sent
}
mailbox Trash {
special_use = \Trash
}
prefix =
separator = /
type = private
}
namespace shared {
list = children
location =
mdbox:/mailhomes/%%d/%%n/mdbox:INDEXPVT=/mailhomes/%d/%n/shared
prefix = shared/%%u/
separator = /
subscriptions = no
type = shared
}
passdb {
args = /etc/dovecot/dovecot-ldap.conf.ext
driver = ldap
}
plugin {
acl = vfile:/tmp/global-acls:cache_secs=5
mail_plugins = " acl notify replication"
sieve = file:~/sieve;active=~/.dovecot.sieve
sieve_before = /mailhomes/sieve/global/SpamToJunk.sieve
sieve_max_actions = 32
sieve_max_redirects = 4
sieve_max_script_size = 1M
sieve_quota_max_scripts = 20
sieve_quota_max_storage = 10M
sieve_redirect_envelope_from = sender
zlib_save = bz2
zlib_save_level = 6
}
protocols = " imap lmtp sieve submission sieve"
recipient_delimiter = -
service doveadm {
inet_listener {
port = 24245
}
}
service imap-login {
process_min_avail = 2
}
service imap {
process_limit = 4096
}
service lmtp {
inet_listener lmtp {
port = 24
}
}
service managesieve-login {
inet_listener sieve {
port = 4190
}
process_min_avail = 2
service_count = 1
}
service managesieve {
process_limit = 1024
}
service submission-login {
inet_listener submission {
port = 587
}
}
ssl = required
ssl_cert = </etc/dovecot/dovecot-backend.pem
ssl_dh = # hidden, use -P to show it
ssl_key = # hidden, use -P to show it
submission_client_workarounds = whitespace-before-path
submission_host = ###
submission_relay_host = ###
submission_relay_ssl = starttls
submission_relay_trusted = yes
userdb {
driver = prefetch
}
userdb {
args = /etc/dovecot/dovecot-ldap-userdb.conf.ext
driver = ldap
}
protocol lda {
mail_plugins = " acl notify replication zlib"
}
protocol imap {
mail_max_userip_connections = 100
mail_plugins = " acl notify replication zlib imap_acl"
}
protocol lmtp {
mail_plugins = " acl notify replication zlib sieve"
}
protocol sieve {
mail_max_userip_connections = 10
managesieve_implementation_string = Dovecot Pigeonhole
managesieve_logout_format = bytes=%i/%o
managesieve_max_compile_errors = 5
managesieve_max_line_length = 64 k
}
protocol submission {
mail_plugins = " acl notify replication"
}
local ### {
doveadm_password = # hidden, use -P to show it
}
local ### {
doveadm_password = # hidden, use -P to show it
}

MDBOX DSYNC error: Broken physical size in mailbox

paul-dovecotlist＠trainor.nz

2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf

Pigeonhole version 0.5.11 (6c69c917)

OS: Linux 5.3.0-1032-aws x86_64 Ubuntu 18.04.5 LTS

Paul Trainor

2.3.11.3 (502c39af9): /etc/dovecot/dovecot.conf

Pigeonhole version 0.5.11 (6c69c917)

OS: Linux 5.3.0-1032-aws x86_64 Ubuntu 18.04.5 LTS

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