[BUG] Reading Lists Not Syncing — 11 lists synced
Closed, DuplicatePublicBUG REPORT
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Authored By

	briancrink
	Jul 3 2019, 1:24 PM

Description

Steps to reproduce

Open Wikipedia app
Go to synced lists and notice not all of the lists that have been previously created are listed.
at some point, the Wikipedia iOS app becomes unresponsive and fails to open at all anymore.
Delete the app from iPhone and redownload.
Log back into Wikipedia account on iOS app and resync reading lists.

Expected results

All reading lists should have been synced back to the Wikipedia iOS App on my iPhone. 100 lists in total.

Actual results

After re-downloading wikipedia app, logging back in and waiting for reading lists to resync, 11 of the 100 reading lists are showing.

Screenshots

Environments observed

App version: 6.2.3
OS versions: 12.1.1
Device model: iPhone X 10,3
Device language: English

Related Objects

Mentioned Here: T226762: [Bug] GET /data/lists doesn't include "next" in an incomplete response
T226593: Fatal ApiReadingLists request: "deleteListEntry failed for unknown reason"
T226358: Failover x1 master: db1069 to db1120 3rd July at 06:00 UTC

Event Timeline

briancrink created this task.Jul 3 2019, 1:24 PM

Restricted Application changed the subtype of this task from "Task" to "Bug Report". · View Herald TranscriptJul 3 2019, 1:24 PM

Restricted Application added a subscriber: Aklapper. · View Herald Transcript

briancrink added a comment.Jul 3 2019, 1:26 PM

This comment was removed by briancrink.

2014EDF1-DCA4-4ACA-991C-3CCCFD5434B2.png (2×1 px, 1 MB)

Just to discard any kind of database anomaly, I ran:

$ ./compare.py wikishared reading_list rl_id db1120 db1127 db1137 db1069
Starting comparison between id 1 and 1329863
2019-07-03T15:35:30.859851: row id 990001/1329863, ETA: 00m03s, 0 chunk(s) found different
Execution ended, no differences found.

Discarding data loss due to T226358.

Restricted Application added a project: Product-Infrastructure-Team-Backlog-Deprecated. · View Herald TranscriptJul 3 2019, 3:36 PM

jcrespo unsubscribed.Jul 3 2019, 3:37 PM

LGoto triaged this task as High priority.Jul 3 2019, 3:46 PM

LGoto edited projects, added Product-Infrastructure-Team-Backlog-Deprecated (Kanban); removed Product-Infrastructure-Team-Backlog-Deprecated.

This is caused by T226762: [Bug] GET /data/lists doesn't include "next" in an incomplete response (which unfortunately has been going on for a while before we caught it). The fix should be deployed with this week's train. There's no data loss on the server side; I'd imagine the client needs a full reload of the lists (not just a sync of the delta since the last sync) to recover. Sorry for the trouble.

Oh wait, there's no train this week. I'll SWAT it today, then.

briancrink renamed this task from [BUG] 90% of Reading Lists Not Syncing — Data Loss to [BUG] of Reading Lists Not Syncing — 11 lists synced.Jul 3 2019, 3:53 PM

In T227197#5303981, @Tgr wrote:

Oh wait, there's no train this week. I'll SWAT it today, then.

thank you for taking task ownership.

briancrink renamed this task from [BUG] of Reading Lists Not Syncing — 11 lists synced to [BUG] Reading Lists Not Syncing — 11 lists synced.Jul 3 2019, 4:06 PM

briancrink updated the task description. (Show Details)

Tgr closed this task as a duplicate of T226762: [Bug] GET /data/lists doesn't include "next" in an incomplete response.Jul 3 2019, 4:26 PM

	F29678251: 2014EDF1-DCA4-4ACA-991C-3CCCFD5434B2.png
	Jul 3 2019, 1:27 PM

	F29678245: C0A16834-F669-4A07-A04E-00AE5F60C0AD.jpeg
	Jul 3 2019, 1:26 PM

[BUG] Reading Lists Not Syncing — 11 lists syncedClosed, DuplicatePublicBUG REPORTActions