[SOLR-12522] Support a runtime function `#ALL` for 'replica' in autoscaling policies

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.5, 8.0
• Component/s: AutoScaling, SolrCloud
• Assignee: Noble Paul
• Reporter: Noble Paul
• Created: 27/Jun/18 02:32
• Updated: 08/Jun/19 15:03
• Resolved: 18/Jul/18 12:57

Description

today we have to use the convoluted rule to place all TLOG replicas in nodes with ssd disk

{ "replica": 0,  "type" : "TLOG" ,"diskType" : "!ssd"  }

Ideally it should be expressed better as

{ "replica": "#ALL",  "type" : "TLOG" ,  "diskType" : "ssd"}