[SOLR-11491] HttpClusterStateProvider doesn't support retrieval of cluster properties

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 8.0
• Fix Version/s: 7.2, 8.0
• Assignee: Andrzej Bialecki
• Reporter: Andrzej Bialecki
• Created: 15/Oct/17 13:43
• Updated: 08/Jun/19 15:11
• Resolved: 24/Oct/17 16:19

Description

SOLR-11285 refactoring caused the folowing bug to appear when CloudSolrClient uses HttpClusterStateProvider:

java.lang.UnsupportedOperationException: Fetching cluster properties not supported using the HttpClusterStateProvider. ZkClientClusterStateProvider can be used for this.
	at __randomizedtesting.SeedInfo.seed([53591E2E965F9457:432459E763BC94C0]:0)
	at org.apache.solr.client.solrj.impl.HttpClusterStateProvider.getClusterProperties(HttpClusterStateProvider.java:254)
	at org.apache.solr.client.solrj.impl.ClusterStateProvider.getClusterProperty(ClusterStateProvider.java:65)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.sendRequest(CloudSolrClient.java:1019)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.requestWithRetryOnStaleState(CloudSolrClient.java:862)
	at org.apache.solr.client.solrj.impl.CloudSolrClient.request(CloudSolrClient.java:793)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:178)
	at org.apache.solr.client.solrj.SolrRequest.process(SolrRequest.java:195)
	at org.apache.solr.client.solrj.impl.CloudSolrClientTest.testHandlingOfStaleAlias(CloudSolrClientTest.java:226)

CLUSTERSTATUS response already contains cluster properties under "properties" key, so this simply needs to be used in HttpClusterStateProvider.