[SOLR-12444] Updating a cluster policy fails

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.4, 8.0
• Component/s: AutoScaling
• Assignee: Noble Paul
• Reporter: Varun Thacker
• Created: 04/Jun/18 05:40
• Updated: 08/Jun/19 15:14
• Resolved: 05/Jun/18 12:44

Description

If I create a policy like this

curl -X POST -H 'Content-type:application/json' --data-binary '{
"set-cluster-policy": [
{"cores": "<4","node": "#ANY"}
]
}' http://localhost:8983/solr/admin/autoscaling

Then I can never update this policy subsequently .

To reproduce try changing the policy to 

curl -X POST -H 'Content-type:application/json' --data-binary '{
"set-cluster-policy": [
{"cores": "<3","node": "#ANY"}
]
}' http://localhost:8983/solr/admin/autoscaling

The policy will never change. The workaround is to clear the policy by sending an empty array and then re-creating it