Meteor-Community-Packages / Meteor-Community-Packages/ground-db

GroundDB doesn't sync data to live server when getting online again after a while

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#214 3 comments 0 reactions 0 assignees View on GitHub

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bug
Dominant language
JavaScript
Stars
569
Forks
77
PR merge metrics
No merged PRs in 30d

Description

Hi,

Since we updated to a newer Meteor version (1.8 > 2.5) we are having problems with our app running offline.

I've tested the following
1. I turn off the wifi on my phone
2. I do a database update
3. I turn my wifi back on

When i do this right after each other everything works fine, but when I wait a couple of minutes (30 minutes) before turning my wifi back on the data won't be updated.

Do you have an idea of what is going on and how to fix this?

Contributor guide

Open the contributing guide

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

Research direction

Start by reproducing the reported offline update sequence on the affected Meteor versions, especially after waiting about 30 minutes before reconnecting. Trace GroundDB's reconnect and synchronization behavior; done means data changed offline is reliably sent to the live server after connectivity returns, including after the delay.

Written by the indexing model from the issue text.

Assessment

Tech stack
javascript
Domain
database
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
25/100

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