Using imapsync I changed many ACLs on many accounts simultaneously in four concurrent IMAP-sessions.

I started with an empty file "shared-mailboxes". But after the sync the file "shared-mailboxes" has been crashed. I found broken lines and I'm missing some entrys.

Is it possible that there's no filelocking on that file?

I used the ext3 filesystem.

That's what shred-mailboxes looks like at the moment:

shared/shared-box 1 shared/shared-boxes/user/user1.example.com/user2.example.com 1 .example.com/user5.example.com 1 hared/shared-boxes/user/user6.example.com/user4.example.c2442203233424^? 1 ser/user7.example.com/user2.example.com

Peer

dovecot -n: # 1.2.9: /etc/dovecot/dovecot.conf # OS: Linux 2.6.27.39-0.2-default x86_64 openSUSE 11.1 (x86_64) protocols: imap imaps managesieve
ssl_cert_file: /etc/ssl/old.pem
ssl_key_file: /etc/ssl/old.pem
shutdown_clients: no
login_dir: /var/run/dovecot/login
login_executable(default): /usr/lib/dovecot/imap-login
login_executable(imap): /usr/lib/dovecot/imap-login
login_executable(managesieve): /usr/lib/dovecot/managesieve-login login_process_per_connection: no
login_max_processes_count: 512
max_mail_processes: 1024
mail_max_userip_connections(default): 40
mail_max_userip_connections(imap): 40
mail_max_userip_connections(managesieve): 10
verbose_proctitle: yes
mail_uid: vmail
mail_gid: vmail
mail_location: maildir:~/Maildir
mail_executable(default): /usr/lib/dovecot/imap-usernamenmigration mail_executable(imap): /usr/lib/dovecot/imap-usernamenmigration
mail_executable(managesieve): /usr/lib/dovecot/managesieve
mail_plugins(default): quota imap_quota acl imap_acl
mail_plugins(imap): quota imap_quota acl imap_acl
mail_plugins(managesieve):
mail_plugin_dir(default): /usr/lib64/dovecot/modules/imap
mail_plugin_dir(imap): /usr/lib64/dovecot/modules/imap
mail_plugin_dir(managesieve): /usr/lib64/dovecot/modules/managesieve namespace:
type: private
separator: /
inbox: yes
list: yes
subscriptions: yes
namespace:
type: shared
separator: /
prefix: zz_SHARED_ACCOUNTS/%%u/ location: maildir:%%h/Maildir:INDEX=~/Maildir/shared/%%u list: yes lda: postmaster_address: postmaster@iea-dpc.org mail_plugins: quota acl sieve mail_plugin_dir: /usr/lib64/dovecot/modules/lda quota_full_tempfail: yes auth default: mechanisms: plain login digest-md5 cram-md5 verbose: yes debug: yes debug_passwords: yes passdb: driver: passwd-file args: /etc/dovecot/userdb userdb: driver: passwd-file args: /etc/dovecot/userdb userdb: driver: static args: uid=5001 gid=5001 socket: type: listen client: path: /var/spool/postfix/private/auth mode: 432 user: postfix group: postfix master: path: /var/run/dovecot/auth-master mode: 432 user: vmail group: vmail plugin: quota: maildir quota_rule: *:storage=102400 acl: vfile acl_shared_dict: file:/var/lib/dovecot/shared-mailboxes sieve: ~/.dovecot.sieve sieve_dir: ~/sieve

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