Limit number of simultaneously dispatched/queued requests

[githubbob42]

Mingle Card: 5674
Narrative

The current sync dispatches all pages for an sobject simultaneously and defers to default browser behavior for managing concurrent requests.

We also set a default timeout of 2 minutes per request, so if there are enough pages it’s possible for entire batches of queued requests to fail.

Acceptance Criteria

Limit the number of simultaneously dispatched requests so that they stay reasonably within browser limits for concurrent requests. This should allow tablets to more likely sync successfully for large syncs.

Analysis

Instead of dispatching all pages at once, break into about 6 chunks and queue requests in each chunk. Multiple sobjects are still processed simultanously so the best we can do is to break up each sobject into 6 chunks but this change is meant to have the most impact when syncing a particularly large number of records for a single sobject (like ginormous pricebooks) that have hundreds of pages of records.

Related Stories

Tasks

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Defects

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Test Plan

Successfully sync using [email protected] on iPad (takes about 20min for full sync)

[githubbob42]

Pull Request #2736