[SyncEvolution] "Comparison was impossible"

Sun May 14 23:23:15 UTC 2017

Thank you for your time and your answers. I've reset the phone and the 
problem is still here, so I guess I've never succeed in remove a contact 
on the server from my phone. Can't be sure because all system files 
haven't been reset =/

*Vincent Lambert*
Développeur informatique

Le 14/05/2017 à 21:21, Patrick Ohly a écrit :
> On Sun, 2017-05-14 at 21:02 +0200, Vincent Lambert wrote:
>> Now, I delete it from the Contacts app and retry:
>>
>> $ syncevolution --export - @default contacts pas-id-5918A52200000119
>> BEGIN:VCARD
>> VERSION:3.0
>> X-DELETED-AT:2017-05-14T20:47:23
> ...
>> N:AAA;AAA;;;
>> FN:AAA AAA
> ...
>> END:VCARD
>>
>> As you suspected, the delete operation doesn't work properly.
> I've never seen this X-DELETED-AT before. As you are using an Ubuntu
> Phone, with sync and datastore provided by Canonical, I suggest that you
> bring this up with them. This looks like an Ubuntu Phone specialty to
> me.
>
>> But there
>> is a second problem. Let's try a normal sync, to see what happen next:
>> $ syncevolution  owncloud contacts
>> [WARNING] owncloud: ignoring username , it is not needed
>> [INFO] @default/9frfrenchholiday: inactive
>> [INFO] @default/9rd2q8ps5e2r48skvidunfkoms8: inactive
>> [INFO] @default/addressbook: inactive
>> [INFO] @default/calendar: inactive
>> [INFO] @default/memo: inactive
>> [INFO] @default/todo: inactive
>> [WARNING] owncloud: ignoring username , it is not needed
>> [INFO @owncloud] target side of local sync ready
>> [INFO @owncloud] @owncloud/addressbook: inactive
>> [INFO @owncloud] @owncloud/calendar: inactive
>> [INFO @owncloud] @owncloud/memo: inactive
>> [INFO @owncloud] @owncloud/todo: inactive
>> [INFO @owncloud] @owncloud/contacts: using configured
>> database=[censored]/remote.php/carddav/addressbooks/Vincent/contacts
>> [INFO @owncloud] @owncloud/contacts: starting normal sync, two-way (peer
>> is server)
>> [INFO] @default/contacts: starting normal sync, two-way (peer is client)
>> [INFO] creating complete data backup of datastore contacts before sync
>> (enabled with dumpData and needed for printChanges)
>> @default data changes to be applied during synchronization:
>> *** @default/contacts ***
>> Comparison was impossible.
>>
>> [INFO] @default/contacts: started
>> [INFO] @default/contacts: sent 1
>> [INFO @owncloud] @owncloud/contacts: started
>> [INFO @owncloud] @owncloud/contacts: updating "AAA AAA"
>> [INFO @owncloud] @owncloud/contacts: received 1/1
>> [INFO] @default/contacts: normal sync done successfully
>> [INFO @owncloud] @owncloud/contacts: normal sync done successfully
>>
>> Synchronization successful.
>>
>> Changes applied during synchronization (@owncloud):
>> +---------------|-----------------------|-----------------------|-CON-+
>> |               |       @owncloud       |       @default        | FLI |
>> |        Source | NEW | MOD | DEL | ERR | NEW | MOD | DEL | ERR | CTS |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |      contacts |  0  |  1  |  0  |  0  |  0  |  0  |  0  |  0  | 0  |
>> |      two-way, 0 KB sent by client, 0 KB received                    |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |          start Sun May 14 20:49:51 2017, duration 0:10min           |
>> |               synchronization completed successfully                |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> [INFO] creating complete data backup after sync (enabled with dumpData
>> and needed for printChanges)
>>
>> Synchronization successful.
>>
>> Changes applied during synchronization:
>> +---------------|-----------------------|-----------------------|-CON-+
>> |               |       @default        |       @owncloud       | FLI |
>> |        Source | NEW | MOD | DEL | ERR | NEW | MOD | DEL | ERR | CTS |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |      contacts |  0  |  0  |  0  |  0  |  0  |  1  |  0  |  0  | 0  |
>> |      two-way, 0 KB sent by client, 0 KB received                    |
>> |      item(s) in database backup: 141 before sync, 141 after it      |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |          start Sun May 14 20:49:50 2017, duration 0:11min           |
>> |               synchronization completed successfully                |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>>
>> Data modified @default during synchronization:
>> *** @default/contacts ***
>> Comparison was impossible.
>>
>>
>>
>>
>>
>> Whatever the problem is, the contact has been updated on the server but
>> no information has changed.
> I'm not following. What problem?
>
> If this is the first two-way sync after "deleting" the contact via the
> phone UI, then the sync above makes perfect sense. The contact has been
> modified (by adding the X-DELETED-AT) and that's why it gets sent to the
> server, including that extension. But as it is non-standard, the server
> doesn't do anything with it.
>
>
>>   I can see it in another client
>> (Thunderbird). Finally, I try again a refresh-from-remote, that is
>> supposed to completely reset the local problem on the phone, and surprise:
>>
>> $ syncevolution --sync refresh-from-remote owncloud contacts
>> [WARNING] owncloud: ignoring username , it is not needed
>> [INFO] @default/9frfrenchholiday: inactive
>> [INFO] @default/9rd2q8ps5e2r48skvidunfkoms8: inactive
>> [INFO] @default/addressbook: inactive
>> [INFO] @default/calendar: inactive
>> [INFO] @default/memo: inactive
>> [INFO] @default/todo: inactive
>> [WARNING] owncloud: ignoring username , it is not needed
>> [INFO @owncloud] target side of local sync ready
>> [INFO @owncloud] @owncloud/addressbook: inactive
>> [INFO @owncloud] @owncloud/calendar: inactive
>> [INFO @owncloud] @owncloud/memo: inactive
>> [INFO @owncloud] @owncloud/todo: inactive
>> [INFO @owncloud] @owncloud/contacts: using configured
>> database=[censored]/remote.php/carddav/addressbooks/Vincent/contacts
>> [INFO @owncloud] @owncloud/contacts: starting first time sync from
>> client (peer is server)
>> [INFO @owncloud] @owncloud/contacts: sent 141/141
>> [INFO] @default/contacts: starting slow sync from client (peer is client)
>> [INFO] creating complete data backup of datastore contacts before sync
>> (enabled with dumpData and needed for printChanges)
>> @default data changes to be applied during synchronization:
>> *** @default/contacts ***
>> Comparison was impossible.
>>
>> [INFO] @default/contacts: deleting "AAA AAA"
>> [...]
>> [INFO] @default/contacts: adding "AAA AAA"
>> [...]
>> [INFO] @default/contacts: received 141
>> [INFO @owncloud] @owncloud/contacts: started
>> [INFO] @default/contacts: slow sync done successfully
>> [INFO @owncloud] @owncloud/contacts: first time sync done successfully
>>
>> Synchronization successful.
>>
>> Changes applied during synchronization (@owncloud):
>> +---------------|-----------------------|-----------------------|-CON-+
>> |               |       @owncloud       |       @default        | FLI |
>> |        Source | NEW | MOD | DEL | ERR | NEW | MOD | DEL | ERR | CTS |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |      contacts |  0  |  0  |  0  |  0  | 141 |  0  |  0  |  0  | 0  |
>> |      refresh-from-local, 44 KB sent by client, 0 KB received        |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |          start Sun May 14 20:51:55 2017, duration 0:28min           |
>> |               synchronization completed successfully                |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> [INFO] creating complete data backup after sync (enabled with dumpData
>> and needed for printChanges)
>>
>> Synchronization successful.
>>
>> Changes applied during synchronization:
>> +---------------|-----------------------|-----------------------|-CON-+
>> |               |       @default        |       @owncloud       | FLI |
>> |        Source | NEW | MOD | DEL | ERR | NEW | MOD | DEL | ERR | CTS |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |      contacts | 141 |  0  | 141 |  0  |  0  |  0  |  0  |  0  | 0  |
>> |      refresh-from-remote, 0 KB sent by client, 44 KB received       |
>> |      item(s) in database backup: 141 before sync, 141 after it      |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>> |          start Sun May 14 20:51:54 2017, duration 0:30min           |
>> |               synchronization completed successfully                |
>> +---------------+-----+-----+-----+-----+-----+-----+-----+-----+-----+
>>
>> Data modified @default during synchronization:
>> *** @default/contacts ***
>> Comparison was impossible.
>>
>>
>>
>>
>> The AAA contact can't be seen in the Contact app at this time! Even if
>> you previous command reveal it in the database:
>> $ syncevolution --print-items owncloud contacts
>> pas-id-5918A76400000233: AAA AAA
>> [...]
> So presumably the X-DELETED-AT was preserved on the server (you can
> check by dumping it again). The server still shows the contact (because
> it doesn't know what that property means), but the phone hides it
> (because it knows the property).
>

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