[SOLR-11163] Normalizer fails to restore itself when reload or restart solr cores.

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 6.6
• Fix Version/s: 7.0, 8.0
• Component/s: contrib - LTR
• Assignee: Christine Poerschke
• Reporter: Yuki Yano
• Created: 28/Jul/17 03:08
• Updated: 08/Jun/19 15:22
• Resolved: 03/Aug/17 15:44

Description

Normalizer fails to restore itself from json file of its parameters when reload or restart solr cores.
This is because Normalizer#paramsToMap generates Map of parameters with double quoted like below:

{
  "min": "\"0.0\"",
  "max": "\"1.0\""
}

With the example above, Normalizer#newInstance fails to invoke setters due to the failure of Float#parseFloat("\"0.0\"").

Issue Links

• is related to: SOLR-10421 solr/contrib/ltr (MinMax|Standard)Normalizer.paramsToMap needs to save float as string
• is related to: SOLR-8542 Integrate Learning to Rank into Solr
• relates to: SOLR-11187 TestModelManagerPersistence improvements