doveadm backup only working once?
Engelbert Torremans
engelbert at torremans.com
Wed Jan 6 15:14:32 EET 2021
All,
Maybe a relevant piece of additional information that could help in
figurring out what is going wrong here that I forgot to add in my
previous posting.
After the succesfull first backup execution using:
#doveadm -D -v backup -R -f -u synctest tcp:192.168.3.1:12345
as described in detail below the /var/mail/synctest inbox file contains
this (using mail -f /var/mail/synctest):
root at mail:/var/mail# mail -f synctest
Mail version 8.1.2 01/15/2001. Type ? for help.
"synctest": 2 messages 2 unread
>U 1 torremans at mail.to Mon Jan 04 17:56 29/1016 Testmail 1
U 2 torremans at mail.to Mon Jan 04 17:56 28/982 Testmail 2
After the 2nd backup command (same command) it contains:
root at server2:/var/mail# mail -f synctest
Mail version 8.1.2 01/15/2001. Type ? for help.
"synctest": 1 message
> 1 MAILER-DAEMON at ser Wed Jan 06 14:05 13/534 DON'T DELETE THIS
MESSAGE -- FOLDER INTERNAL DATA
Looks like for some reason the inbox file is reset/recreated? Anybody
any idea what could cause this behaviour? Running the doveadm backup
command a 3rd of 4th time does not change the /var/mail/synctest file
anymore. Also the date/time of the file is not updated anymore
Thanks,
Engelbert
Op 4-1-2021 om 18:25 schreef Engelbert Torremans:
>
> All,
>
> For the past 2 weeks I have been trying to get dovecot mail backup
> working between 2 debian 10 machines.
>
> Both machines are running the same OS (Debian 10) and configuration
> wise they are similar (except of course ip addresses, hostnames etc).
>
> My "main" machine is called "server" and the 2nd machine is "server2".
>
> See below for the dovecot -n output on server2.
>
> I created a testuser called synctest on both server1 and server2 and
> have sent a couple (2) email messages to synctest at server.
>
> Those testmessages are now present in /var/mail/synctest mbox file on
> server1.
>
> When trying to create a backup from server->server2 for user synctest
> I use this command:
>
> #doveadm -D -v backup -R -f -u synctest tcp:192.168.3.1:12345
> (using something similar from server1 -> server2 like this: #doveadm
> -D -v backup -f -u synctest tcp:192.168.3.2:12345 has the same results
> btw)
>
> The first attempte appears to be working OK but the the 2nd attempt
> (nothing was changed on server1 before the 2nd attempt) fails with
> soemthing like: Error: Couldn't delete mailbox INBOX: Permission denied
>
> Before I can get a succesfull backup again I need to do this (on server2):
>
> #rm /var/mail/synctest
> #rm -r ~syncuser/mail/index/INBOX
> #doveadm mailbox delete -u synctest INBOX
> (if I don't do the rm /var/mail/synctest before the doveadm mailbox
> delete command I will also get a:
> Error: Can't delete mailbox INBOX: Permission denied
>
> Anybody any idea what is happening here? Should I enable replicator
> and/or aggregator?
>
> Output of 1st and 2nd dovadm backup attempt is below:
>
> root at server2:/home/synctest/mail# doveadm -D -v backup -R -f -u
> synctest tcp:192.168.3.1:12345
> Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm
> Debug: Skipping module doveadm_acl_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so:
> undefined symbol: acl_user_module (this is usually intentional, so
> just ignore this message)
> Debug: Skipping module doveadm_expire_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so:
> undefined symbol: expire_set_deinit (this is usually intentional, so
> just ignore this message)
> Debug: Skipping module doveadm_quota_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so:
> undefined symbol: quota_user_module (this is usually intentional, so
> just ignore this message)
> Debug: Module loaded:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so
> Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen()
> failed:
> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so:
> undefined symbol: lucene_index_iter_deinit (this is usually
> intentional, so just ignore this message)
> Debug: Skipping module doveadm_fts_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so:
> undefined symbol: fts_user_get_language_list (this is usually
> intentional, so just ignore this message)
> Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen()
> failed:
> /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so:
> undefined symbol: mail_crypt_box_get_pvt_digests (this is usually
> intentional, so just ignore this message)
> doveadm(synctest)<13039><>: Debug: auth USER input: synctest
> system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): auth USER input:
> synctest system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): Effective
> uid=1006, gid=100, home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): Namespace inbox:
> type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes,
> subscriptions=yes
> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: remote(192.168.3.1:12345): fs:
> root=/home/synctest/mail/mailboxes, index=/home/synctest/mail/index,
> indexpvt=, control=/home/synctest/mail/control,
> inbox=/var/mail/synctest, alt=
> doveadm(synctest): Debug: Effective uid=1006, gid=100, home=/home/synctest
> doveadm(synctest): Debug: Namespace inbox: type=private, prefix=,
> sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes
> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: fs: root=/home/synctest/mail/mailboxes,
> index=/home/synctest/mail/index, indexpvt=,
> control=/home/synctest/mail/control, inbox=/var/mail/synctest, alt=
> doveadm(synctest): Debug: brain M: Namespace has location
> mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: Namespace : Using permissions from
> /home/synctest/mail/mailboxes: mode=0700 gid=default
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Remote
> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Mailbox
> INBOX: local=00000000000000000000000000000000/0/0,
> remote=f8ecea204a65f05fea460000b4581695/0/1: mailbox not selectable yet
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> Using permissions from /home/synctest/mail/mailboxes: mode=0700
> gid=default
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> Using permissions from /home/synctest/mail/mailboxes: mode=0700
> gid=default
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> Using permissions from /home/synctest/mail/mailboxes: mode=0700
> gid=default
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: Namespace :
> Using permissions from /home/synctest/mail/mailboxes: mode=0700
> gid=default
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=1 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=2 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=3 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=4 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=5 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=6 hdr_hash=
> result=Expunged mail not found locally
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Last common UID=0. Delayed expunges=
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=save GUID=8bce3bc615e7f2a1dfad970a3cd36bdb
> UID=7 hdr_hash= result=Mail's UID is above local UIDNEXT - No more
> local mails found
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=save GUID=c9cdf5f725d4195db78b20bbacad189b
> UID=8 hdr_hash= result=New mail
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: import
> mail uid 0 guid 8bce3bc615e7f2a1dfad970a3cd36bdb
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import mail body for GUID=8bce3bc615e7f2a1dfad970a3cd36bdb UID=0
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug:
> /home/synctest/mail/index/INBOX/dovecot.index.cache: Compressed,
> file_seq changed 0 -> 1609779677, size=32, max_uid=0
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: import
> mail uid 0 guid c9cdf5f725d4195db78b20bbacad189b
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Import mail body for GUID=c9cdf5f725d4195db78b20bbacad189b UID=0
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Saved UIDs: 7:8
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Finish update: min_next_uid=9 min_first_recent_uid=1
> min_highest_modseq=10 min_highest_pvt_modseq=0
> dsync-local(synctest)<D+AKA91J81/vMgAAaso27A>: Debug: brain M: Import
> INBOX: Reassign UIDs: 1:
>
> This appears to work perfectly well the first time (maybe I am
> overlooking some issue already at this stage?) At least after the
> backup has been completed /var/mail/syncuser on server2 contains all
> the messages that are also present on server1. And the
> ~syncuser/mail/index/INBOX folder also exists (don't know why this is
> created btw?)
>
> But then when running the same command for the 2nd time (and no
> changes on the /var/mail/synctest file on server1) the command failes
> like this (permission denied to delete INBOX at the end):
>
> root at server2:/home/synctest/mail# doveadm -D -v backup -R -f -u
> synctest tcp:192.168.3.1:12345
> Debug: Loading modules from directory: /usr/lib/dovecot/modules/doveadm
> Debug: Skipping module doveadm_acl_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_acl_plugin.so:
> undefined symbol: acl_user_module (this is usually intentional, so
> just ignore this message)
> Debug: Skipping module doveadm_expire_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_expire_plugin.so:
> undefined symbol: expire_set_deinit (this is usually intentional, so
> just ignore this message)
> Debug: Skipping module doveadm_quota_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_quota_plugin.so:
> undefined symbol: quota_user_module (this is usually intentional, so
> just ignore this message)
> Debug: Module loaded:
> /usr/lib/dovecot/modules/doveadm/lib10_doveadm_sieve_plugin.so
> Debug: Skipping module doveadm_fts_lucene_plugin, because dlopen()
> failed:
> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_lucene_plugin.so:
> undefined symbol: lucene_index_iter_deinit (this is usually
> intentional, so just ignore this message)
> Debug: Skipping module doveadm_fts_plugin, because dlopen() failed:
> /usr/lib/dovecot/modules/doveadm/lib20_doveadm_fts_plugin.so:
> undefined symbol: fts_user_get_language_list (this is usually
> intentional, so just ignore this message)
> Debug: Skipping module doveadm_mail_crypt_plugin, because dlopen()
> failed:
> /usr/lib/dovecot/modules/doveadm/libdoveadm_mail_crypt_plugin.so:
> undefined symbol: mail_crypt_box_get_pvt_digests (this is usually
> intentional, so just ignore this message)
> doveadm(synctest)<13056><>: Debug: auth USER input: synctest
> system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): auth USER input:
> synctest system_groups_user=synctest uid=1006 gid=100 home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): Effective
> uid=1006, gid=100, home=/home/synctest
> doveadm(synctest): Debug: remote(192.168.3.1:12345): Namespace inbox:
> type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes,
> subscriptions=yes
> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: remote(192.168.3.1:12345): fs:
> root=/home/synctest/mail/mailboxes, index=/home/synctest/mail/index,
> indexpvt=, control=/home/synctest/mail/control,
> inbox=/var/mail/synctest, alt=
> doveadm(synctest): Debug: Effective uid=1006, gid=100, home=/home/synctest
> doveadm(synctest): Debug: Namespace inbox: type=private, prefix=,
> sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes
> location=mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: fs: root=/home/synctest/mail/mailboxes,
> index=/home/synctest/mail/index, indexpvt=,
> control=/home/synctest/mail/control, inbox=/var/mail/synctest, alt=
> doveadm(synctest): Debug: brain M: Namespace has location
> mbox:~/mail/mailboxes:INBOX=/var/mail/synctest:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> doveadm(synctest): Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> doveadm(synctest): Debug: Namespace : Using permissions from
> /home/synctest/mail/mailboxes: mode=0700 gid=default
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Local
> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Remote
> mailbox tree: INBOX guid=f8ecea204a65f05fea460000b4581695
> uid_validity=1609590090 uid_next=9 subs=no last_change=0 last_subs=0
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Mailbox
> INBOX: local=f8ecea204a65f05fea460000b4581695/0/1,
> remote=f8ecea204a65f05fea460000b4581695/0/1: Mailboxes are equal
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: Namespace :
> /home/synctest/mail/mailboxes/INBOX doesn't exist yet, using default
> permissions
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: Namespace :
> Using permissions from /home/synctest/mail/mailboxes: mode=0700
> gid=default
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=1 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=2 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=3 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=4 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=5 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=expunge GUID=<unknown> UID=6 hdr_hash=
> result=Expunged mail has no GUID, can't verify it
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Warning: Deleting
> mailbox 'INBOX': UID=7 already exists locally for a different mail:
> Headers hashes don't match (9fc2f2229a1a2a8d5f12304cb5287f97 vs
> b62e0281b4f375a45040c552b55ab31a)
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Import change type=save GUID=8bce3bc615e7f2a1dfad970a3cd36bdb
> UID=7 hdr_hash=9fc2f2229a1a2a8d5f12304cb5287f97 result=Headers hashes
> don't match (9fc2f2229a1a2a8d5f12304cb5287f97 vs
> b62e0281b4f375a45040c552b55ab31a)
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: brain M: Import
> INBOX: Saved UIDs:
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: doveadm-sieve:
> Iterating Sieve mailbox attributes
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve:
> Pigeonhole version 0.5.4 () initializing
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: include:
> sieve_global is not set; it is currently not possible to include
> `:global' scripts.
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
> storage: Using active Sieve script path: /home/synctest/.dovecot.sieve
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
> storage: Using script storage path: /home/synctest/sieve
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
> storage: Using permissions from /home/synctest/sieve: mode=0700 gid=-1
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
> storage: Relative path to sieve storage in active link: sieve/
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Debug: sieve: file
> storage: sync: Synchronization active
> dsync-local(synctest)<VqbhHQhL818AMwAAaso27A>: Error: Couldn't delete
> mailbox INBOX: Permission denied
>
> root at server2:/home/synctest/mail# dovecot -n
> # 2.3.4.1 (f79e8e7e4): /etc/dovecot/dovecot.conf
> # Pigeonhole version 0.5.4 ()
> # OS: Linux 4.19.0-12-amd64 x86_64 Debian 10.6
> # Hostname: server2.fritz.box
> auth_username_format = %Ln
> doveadm_password = # hidden, use -P to show it
> lda_mailbox_autocreate = yes
> login_trusted_networks = 192.168.3.0/24
> mail_location =
> mbox:~/mail/mailboxes:INBOX=/var/mail/%u:DIRNAME=mBoX-MeSsAgEs:INDEX=~/mail/index:CONTROL=~/mail/control
> mail_privileged_group = mail
> 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
> 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 =
> }
> passdb {
> driver = pam
> }
> plugin {
> sieve = ~/.dovecot.sieve
> sieve_default = /var/lib/dovecot/sieve/default.sieve
> sieve_dir = ~/sieve
> }
> postmaster_address = postmaster@"domain"
> protocols = imap pop3 lmtp
> service doveadm {
> inet_listener {
> port = 12345
> }
> }
> service managesieve-login {
> inet_listener sieve {
> port = 4190
> }
> }
> ssl_cert = </etc/letsencrypt/live/"domain"/fullchain.pem
> ssl_dh = # hidden, use -P to show it
> ssl_key = # hidden, use -P to show it
> userdb {
> driver = passwd
> }
> protocol lmtp {
> mail_plugins = " sieve"
> }
> protocol lda {
> mail_plugins = " sieve"
> }
>
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