Fatal: nfs flush requires mail_fsync=always

[Aki Tuomi]

This fix is part of next release.


---Aki TuomiDovecot oy
-------- Original message --------From: "Juan C. Blanco" <jcblanco at fi.upm.es> Date: 30/05/2018  19:31  (GMT+02:00) To: Dovecot Mailing List <dovecot at dovecot.org> Subject: Re: Fatal: nfs flush requires mail_fsync=always 
Hello, any news about the attached error?

I'm preparing the 2.2 to 2.3 upgrade and having the same error.

We have the mail stores in an NFS filer.

Regards

> On 19.01.2018 11:55, Søren Skou wrote:
>> Hiya all,
>>
>> I'm seeing this "Fatal: nfs flush requires mail_fsync=always" error on
>> my testbed. The issue is that from what I can see, mail_fsync is set
>> to always :
>>
>> # doveconf -n | grep mail_fs
>> mail_fsync = always
>>
>> The result is that the client does not connect at all, which is not
>> really what I wanted to happen :)
>>
>> Any idea what is going wrong here?
>>
>> Best regards
>> Søren P. Skou
>>
>> doveconf -n
>>
>> # 2.3.1.alpha0 (bdfa22623) [XI:2:2.3.1~alpha0-1~auto+14]:
>> /etc/dovecot/dovecot.conf
>> # Pigeonhole version 0.5.1.alpha0 (d5f710e0)
>> # OS: Linux 4.9.0-4-amd64 x86_64 Debian 9.3 nfs
>> auth_worker_max_count = 200
>> dict {
>>   expire = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
>>   quota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
>>   sqlquota = mysql:/etc/dovecot/dovecot-dict-sql.conf.ext
>> }
>> disable_plaintext_auth = no
>> lock_method = dotlock
>> mail_fsync = always
>> mail_location = maildir:/mnt/virtual_mail/%d/%n
>> mail_nfs_index = yes
>> mail_nfs_storage = yes
>> mail_plugins = quota
>> mailbox_list_index = no
>> metric imap_select_no {
>>   event_name = imap_command_finished
>>   filter {
>>     name = SELECT
>>     tagged_reply_state = NO
>>   }
>> }
>> mmap_disable = yes
>> namespace inbox {
>>   inbox = yes
>>   location =
>>   mailbox Drafts {
>>     special_use = \Drafts
>>   }
>>   mailbox Junk {
>>     auto = subscribe
>>     special_use = \Junk
>>   }
>>   mailbox Sent {
>>     special_use = \Sent
>>   }
>>   mailbox "Sent Messages" {
>>     special_use = \Sent
>>   }
>>   mailbox Trash {
>>     special_use = \Trash
>>   }
>>   prefix =
>> }
>> passdb {
>>   args = /etc/dovecot/dovecot-sql.conf.ext
>>   driver = sql
>> }
>> plugin {
>>   quota = dict:User quota::proxy::sqlquota
>>   quota_grace = 10%%
>>   quota_rule = *:storage=1000m:messages=300000
>>   quota_rule2 = Trash:storage=+10%%:messages=+10%%
>>   quota_rule3 = Junk:storage=+20%%:messages=+20%%
>>   quota_status_nouser = DUNNO
>>   quota_status_overquota = 552 5.2.2 Mailbox is full
>>   quota_status_success = DUNNO
>>   quota_warning = storage=75%%:messages=75%% quota-warning 75 %u
>>   quota_warning2 = storage=95%%:messages=95%% quota-warning 95 %u
>>   quota_warning3 = -storage=100%%:messages=100%% quota-warning below %u
>>   sieve = /etc/dovecot/sieve/default.sieve
>>   sieve_global_dir = /etc/dovecot/sieve
>> }
>> protocols = " imap pop3"
>> service dict {
>>   unix_listener dict {
>>     mode = 0600
>>     user = vmail
>>   }
>> }
>> service imap {
>>   executable = imap
>> }
>> service quota-status {
>>   client_limit = 1000
>>   executable = quota-status -p postfix
>>   inet_listener {
>>     address = 127.0.0.1
>>     port = 12340
>>   }
>> }
>> service quota-warning {
>>   executable = script /usr/local/bin/quota-warning.sh
>>   user = vmail
>> }
>> ssl_ca = /etc/ssl/certs/ca-root.crt
>> ssl_cert = </etc/ssl/certs/stjerne.danskkabeltv.dk-2019.crt
>> ssl_cipher_list = TLSv1+HIGH !SSLv2 !RC4 !aNULL !eNULL !3DES-CBC !3DES @STRENGTH
>> ssl_dh =  # hidden, use -P to show it
>> ssl_key =  # hidden, use -P to show it
>> userdb {
>>   args = uid=2000 gid=2000 home=/mnt/virtual_mail/%d/%n
>>   driver = static
>> }
>> protocol lmtp {
>>   mail_plugins = quota
>> }
>> protocol lda {
>>   mail_plugins = quota
>> }
>> protocol imap {
>>   mail_plugins = quota imap_quota
>>   rawlog_dir = /tmp/rawlog/%u
>> }
> 
> Hi!
> 
> Thanks, we'll look into it.
> 
> Aki



-- 
+-------------------------------------------------------------------+
| Juan C. Blanco                                                    |
|                                                                   |
|  Centro de Calculo                 |                              |
|  E.T.S. Ingenieros Informáticos    |  E-mail: jcblanco at fi.upm.es  |
|  Universidad Politécnica de Madrid |                              |
|  Campus de Montegancedo            |                              |
|  Boadilla del Monte                |  Tel.:    (+34) 91 067 2771  |
|  28660 MADRID (Spain)              |  Fax :    (+34) 91 336 7412  |
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