[YARN-3551] Consolidate data model change according to the backend implementation

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 2.9.0, 3.0.0-alpha1
• Component/s: timelineserver
• Target Version/s: YARN-2928
• Assignee: Zhijie Shen
• Reporter: Zhijie Shen
• Created: 28/Apr/15 00:00
• Updated: 25/Oct/19 20:25
• Resolved: 04/May/15 23:14

Description

Based on the comments on YARN-3134 and YARN-3411, we need to change the data model to restrict the data type of info/config/metric section.

1. Info: the value could be all kinds object that is able to be serialized/deserialized by jackson.

2. Config: the value will always be assumed as String.

3. Metric: single data or time series value have to be number for aggregation.

Other than that, info/start time/finish time of metric seem not to be necessary for storage. They should be removed.

Issue Links

• blocks: YARN-3134 [Storage implementation] Exploiting the option of using Phoenix to access HBase backend