[PIO-95] Raise request timeout for REST API

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.11.0-incubating
• Fix Version/s: 0.12.0-incubating
• Component/s: Core
• Target Version/s: 0.12.0-incubating
• External issue URL: https://github.com/apache/incubator-predictionio/pull/394
• Assignee: Mars Hall
• Reporter: Mars Hall
• Created: 16/Jun/17 19:11
• Updated: 05/Dec/17 22:44
• Resolved: 21/Jun/17 00:03

Description

We've found the default 20-second REST API request timeout is too short for our batch-prediction use cases. We're running PredictionIO on Heroku which has its own timeout starting at 30-seconds. So we'd prefer a more generous or easily configurable timeout to allow Heroku's routing layer to impose & track this limit in the platform layer.

I investigated how to configure this and found Spray `application.conf`. This PR simply increases the timeout.

I would love guidance on how we might extract this config into an environment variable or a value in `pio-env.sh`.

Investigation / implementation PR: https://github.com/apache/incubator-predictionio/pull/394

Issue Links

• links to: GitHub Pull Request #394