Subscription not immediately reflected

[John van der Kamp]

The mail isn't on NFS, so I don't think that’s the problem. Probably related to my setup, because I use the imapc proxy settings:

mail_location = imapc:~/imapc
imapc_host = 192.168.1.2
imapc_port = 143

passdb {
  driver = imap
  args = host=192.168.1.2 port=143
  default_fields = userdb_imapc_user=%u userdb_imapc_password=%w
}
userdb {
  driver = prefetch
}

The subscribe commands, when directly executed to the proxied IMAP server work as expected.
Output of my test:

  18:01.48 > IMFE1 LOGIN "username" "password"
  18:01.72 < * CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND URL-PARTIAL CATENATE UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS BINARY MOVE
  18:01.72 < IMFE1 OK Logged in
  18:01.72 > IMFE2 LIST "" ""
  18:01.72 < * LIST (\Noselect) "/" ""
  18:01.72 < IMFE2 OK List completed (0.000 + 0.000 secs).
  18:01.72 > IMFE3 CREATE subway
  18:01.76 < IMFE3 OK Create completed (0.000 + 0.000 + 0.041 secs).
  18:01.76 > IMFE4 LSUB "" *
  18:01.81 < * LSUB () "/" INBOX
  18:01.81 < * LSUB () "/" Outbox
  18:01.81 < * LSUB () "/" "Deleted Items"
  18:01.81 < * LSUB () "/" "Sent Items"
  18:01.81 < * LSUB () "/" Drafts
  18:01.81 < * LSUB () "/" "Junk E-mail"
  18:01.81 < IMFE4 OK Lsub completed (0.000 + 0.000 + 0.049 secs).
  18:01.81 > IMFE5 SUBSCRIBE subway
  18:01.88 < IMFE5 OK Subscribe completed (0.000 + 0.000 + 0.072 secs).
  18:01.88 > IMFE6 LSUB "" *
  18:01.88 < * LSUB () "/" INBOX
  18:01.88 < * LSUB () "/" Outbox
  18:01.88 < * LSUB () "/" "Deleted Items"
  18:01.88 < * LSUB () "/" "Sent Items"
  18:01.88 < * LSUB () "/" Drafts
  18:01.88 < * LSUB () "/" "Junk E-mail"
  18:01.88 < IMFE6 OK Lsub completed (0.000 + 0.000 secs).

John

-----Original Message-----
From: dovecot [mailto:dovecot-bounces at dovecot.org] On Behalf Of Timo Sirainen
Sent: Thursday, 27 October, 2016 12:07
To: Dovecot Mailing List <dovecot at dovecot.org>
Cc: John van der Kamp <jkamp at amazon.nl>
Subject: Re: Subscription not immediately reflected


> On 27 Oct 2016, at 12:55, Timo Sirainen <tss at iki.fi> wrote:
> 
> I can't reproduce this. Can you send your doveconf -n output and also an example IMAP session showing what goes wrong? I tested with Maildir and mdbox, and with and without mailbox_list_index=yes:
> 
> x lsub "" *
> * LSUB () "/" INBOX
> x OK Lsub completed (0.000 + 0.000 secs).
> x subscribe Trash
> x OK Subscribe completed (0.000 + 0.000 secs).
> x lsub "" *
> * LSUB () "/" INBOX
> * LSUB (\Trash) "/" Trash
> x OK Lsub completed (0.000 + 0.000 secs).

Although you could try if the attached patch happens to help? I think you'd then have to be using NFS or some other remote storage where time is >1 seconds different from Dovecot server's time.


> 
>> On 26 Oct 2016, at 17:52, John van der Kamp <jkamp at amazon.nl> wrote:
>> 
>> I was able to find some time to debug this more, and I found the change that breaks it was introduced in 2.2.25:
>> If I revert 18856082d632ac60996637547098688148826b5a from release-2.2.25 branch, the test works again.
>> 
>> John
>> 
>> -----Original Message-----
>> From: dovecot [mailto:dovecot-bounces at dovecot.org] On Behalf Of John van der Kamp
>> Sent: Friday, 7 October, 2016 18:00
>> To: dovecot at dovecot.org
>> Subject: Subscription not immediately reflected
>> 
>> Hello,
>> 
>> 
>> I noticed that somewhere between 2.2.22 and 2.2.25 the workings of subscriptions seem to have changed.
>> 
>> In version 2.2.25, when a client subscribes to a folder, and then does an LSUB command, it will not see that subscribed folder.
>> 
>> If you retry the LSUB command, the change is there.
>> 
>> Same with unsubscribes.
>> 
>> In version 2.2.22 I did not see this weird behavior.
>> 
>> 
>> John
>>