calendar crash on windows

[Bastien Durel]

Hello,

I have a problem on a windows machine I had to reinstall a few weeks ago
: when I try to register my caldav calendar, thunderbird begins to
request many elements[1], its memory grows and it crashes after reaching
~2Gib of RAM usage.
The calendar is old, with elements dating to 2005, and has ~5000
entries. Not so big for a computer.

If I delete old events (I tried "where firstoccurence < 1578213000" to
keep only ~1 year), the sync runs. If I re-insert the old elements, the
next calendar sync in tb crashes.

Is there a way to limit the range of event sync ?
I can provide more logs on request.

Thanks,

[1] with some REPORT queries returning a few kb of data each :
> - - [24/Jan/2021:21:11:59 +0100] "REPORT /calendars/bastien/default/ HTTP/2.0" 207 95398 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1"
> - - [24/Jan/2021:21:12:05 +0100] "REPORT /calendars/bastien/default/ HTTP/2.0" 207 96261 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1"
> - - [24/Jan/2021:21:12:11 +0100] "REPORT /calendars/bastien/default/ HTTP/2.0" 207 102531 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1"
> - - [24/Jan/2021:21:12:17 +0100] "REPORT /calendars/bastien/default/ HTTP/2.0" 207 105151 "-" "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:78.0) Gecko/20100101 Thunderbird/78.6.1"
[...]

--
Bastien

[MikeS]

Try the TbSync add-on. That has a setting which allows sync to be set to
"everything" or one of several periods from 2 weeks up to 6 months ago.

[Bastien Durel]

Le 25/01/2021 à 10:07, MikeS via support-thunderbird a écrit :
> On 24/01/2021 20:44, Bastien Durel wrote:

>> Hello,
>>
>> I have a problem on a windows machine I had to reinstall a few weeks
>> ago : when I try to register my caldav calendar, thunderbird begins to
>> request many elements[1], its memory grows and it crashes after
>> reaching ~2Gib of RAM usage.
>> The calendar is old, with elements dating to 2005, and has ~5000
>> entries. Not so big for a computer.
>>

[...]
>>
> Try the TbSync add-on. That has a setting which allows sync to be set to
> "everything" or one of several periods from 2 weeks up to 6 months ago.
>

Hello,

I tried tbsync, but I did not find such a setting. How do you access it ?

Thanks,

--
Bastien

[MikeS]

This should work:
- open TbSync and go to Account Settings
- open the Synchonisation status tab
- select your account and UNTICK the Enable and synchronise box
(you cannot change the setting while it is active)
- open the Options tab at the end
- under Calendar options at the bottom, drop down the list next to
Synchroniation period.
The list has a choice of 4 periods ranging from 2 weeks ago to 6 months
ago a plus a top entry of "Everything".

[H]

On January 25, 2021 2:12:49 PM EST, MikeS via support-thunderbird <support-t...@lists.mozilla.org> wrote:
>On 25/01/2021 12:18, Bastien Durel wrote:

>This should work:
> - open TbSync and go to Account Settings
> - open the Synchonisation status tab
> - select your account and UNTICK the Enable and synchronise box
> (you cannot change the setting while it is active)
> - open the Options tab at the end
> - under Calendar options at the bottom, drop down the list next to
>Synchroniation period.
>The list has a choice of 4 periods ranging from 2 weeks ago to 6 months
>
>ago a plus a top entry of "Everything".

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Does TbSync also sync calendar colors from the backend server?

[Bastien Durel]

Le lundi 25 janvier 2021 à 19:12 +0000, MikeS via support-thunderbird a
écrit :

> This should work:
>   - open TbSync and go to Account Settings
>   - open the Synchonisation status tab
>   - select your account and UNTICK the Enable and synchronise box
>    (you cannot change the setting while it is active)
>   - open the Options tab at the end
>   - under Calendar options at the bottom, drop down the list next to
> Synchroniation period.
> The list has a choice of 4 periods ranging from 2 weeks ago to 6
> months
> ago a plus a top entry of "Everything".

Hello,

I have only 2 options under settings tabs : one for contacts (sync
groups as lists), and one for calendar (enable off-line mode)

:(

I use tbsync 2.20 with caldav/carddav provider 1.24

--
Bastien

[MikeS]

I am using TbSync 2.12 (TB 68.12.1) and 2.19 (TB 78.6.0) with both the
Provider for CalDAV & CardDAV and the Provider for Exchange ActiveSync.
The options I mentioned are present in both. Possibly they are
associated with EAS (used with an outlook.com calendar). There is a
manual etc here https://github.com/jobisoft/TbSync/wiki.

[MikeS]

On 26/01/2021 08:48, Bastien Durel wrote:

I checked one of my TB installations with calendars from both Outlook
and Google (which uses Provider for CalDAV & CardDAV). Only the Outlook
calendar has the options I described so they are from EAS even they they
appear as part of the normal TBSync options tab.

[Bastien Durel]

Le mardi 26 janvier 2021 à 15:55 +0000, MikeS via support-thunderbird a
écrit :

> On 26/01/2021 08:48, Bastien Durel wrote:

> I am using TbSync 2.12 (TB 68.12.1) and 2.19 (TB 78.6.0) with both
> the
> Provider for CalDAV & CardDAV and the Provider for Exchange
> ActiveSync.
> The options I mentioned are present in both. Possibly they are
> associated with EAS (used with an outlook.com calendar). There is a
> manual etc here https://github.com/jobisoft/TbSync/wiki.

Hello,

On TbSync CalDav provider, it states "This provider is not actually
implementing the CalDAV protocol, but will add the found calendars to
Lightning and let Lightning handle the sync." So tbSync is not an
option here :(

I ran a test on a Linux host, and the sync took a while (3 minutes),
sent a lot of notification about "wrong timezone used as float"
(approx.) but no crash nor memory leak.

Regards,

--
Bastien

[Bastien Durel]

Le 28/01/2021 à 11:53, Bastien Durel a écrit :
> I ran a test on a Linux host, and the sync took a while (3 minutes),
> sent a lot of notification about "wrong timezone used as float"
> (approx.) but no crash nor memory leak.
>
> Regards,
>

I tried again on windows, with last patch installed, and with the
64-bits version.

TB took 8 minutes to reach 8.2Gb of RAM usage, then crashed. Not for
system memory exaution, as this machine has 32Gb of RAM, most free at
test time (fresh boot).

Regards,

--
Bastien