1425019 - NoScript fails to sync with "Maximum bytes per object exceeded (16507 > 16384 Bytes)"

Status: RESOLVED DUPLICATE of bug 1484968

(WebExtensions :: Storage, defect, P3)

Description

[Harald der Zweite]

User Agent: Mozilla/5.0 (Windows NT 6.1; rv:57.0) Gecko/20100101 Firefox/57.0
Build ID: 20171206182557

Steps to reproduce:

I use FF 57.0.2, 32bit on a PC and 64bit on a Laptop.
Using Sync works like expected except for the time of last sync.
I manually or automatically sync both computers.


Actual results:

On the PC the time of the last sync is always displayed as "Letzter Sync: 25. November". On the laptop it is the expected date/time


Expected results:

I expect to also show the time of the last sync on the PC.

Comment 1

[Harald der Zweite]

Attachment: Some settings before sync

These are some settings on my PC before another sync. Filtered by services.sync.*last

Comment 2

[Harald der Zweite]

Attachment: Some settings after sync

These are some settings on my PC after another sync. Filtered by services.sync.*last

Comment 3

[Mark Hammond [:markh] [:mhammond]]

If you visit about:sync-log on the PC with the incorrect lastSync time, I suspect you will find some error logs there - would it be possible for you to attach one of them here?

Comment 4

[Harald der Zweite]

Attachment: error-sync-1513198015302.txt

There is indeed an error:
1513198015293	Sync.Engine.Extension-Storage	ERROR	Syncing {73a6fe31-595d-460b-a920-fcc0f8843232}: request failed: Error: HTTP 507; Error: HTTP 507 Insufficient Storage: Resource access is forbidden for this user (Maximum bytes per object exceeded (16507 > 16384 Bytes.) (resource://services-common/kinto-http-client.js:2354:21) JS Stack trace: [e-mail]:2377:21 < [e-mail]:2352:14
1513198015293	Sync.Engine.Extension-Storage	WARN	Syncing failed: Error: HTTP 507; Error: HTTP 507 Insufficient Storage: Resource access is forbidden for this user (Maximum bytes per object exceeded (16507 > 16384 Bytes.) (resource://services-common/kinto-http-client.js:2354:21) JS Stack trace: [e-mail]:2377:21 < [e-mail]:2352:14

See also attached file

Comment 5

[Harald der Zweite]

It seems that NoScript cannot sync. ID=73a6fe31-595d-460b-a920-fcc0f8843232
When I disable syncing of Add-ons the last sync timestamp updates.
Enabling syncing of Add-ons again stops updating the timestamp.

Disabling only NoScript also helps solving this bug.

Comment 6

[Harald der Zweite]

When I enable NoScript and remove some of the trusted sites by setting them to "Default", syncing no longer makes any problems. So it depends on the size of data NoScript wants to exchange.

Comment 7

[Mark Hammond [:markh] [:mhammond]]

Thanks! I've created bug 1425152 for the fact that Sync doesn't handle this persistent failure case very well and I'll morph this bug into the specific "Maximum bytes per object exceeded" error in that log.

Comment 8

[Giorgio Maone [:ma1]]

Is there any suggested work-around?
What's the quota policy, exactly? 
Is the 16KB limit per-extension, per root key or what?
I've got user reporting failures with 130KB and more, I'd like to make their lives easier.
Thanks!

Comment 9

[Mark Hammond [:markh] [:mhammond]]

According to https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/storage/sync, there is a 100k limit. The only work-around I know of is to store less than that.