[METRON-1365] Allow PROFILE_GET to return a default value for a profile and entity that does not have a value written.

• Type: Improvement
• Status: Done
• Priority: Major
• Resolution: Done
• Fix Version/s: 0.5.0
• Assignee: Casey Stella
• Reporter: Casey Stella
• Created: 15/Dec/17 22:43
• Updated: 22/May/18 19:34
• Resolved: 22/May/18 19:16

Description

Right now the profiler is a sparse system, namely if data is not written during a profile period for a given profile and entity, no values are written to HBase. Some algorithms may need non-sparse data (e.g. time series outlier detection algorithms). We should keep the default behavior as it stands, but allow the user at read time to specify a default value. This is most cleanly done by using the existing profiler config overrides (the 3rd argument to PROFILE_GET) and adding a profiler.default.value.

Issue Links

• links to: GitHub Pull Request #871