[SOLR-4015] the collection create AIP may create a collection that user not expected when the solr-nodes number less than the request collection's replicas number

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Cannot Reproduce
• Affects Version/s: 4.0-BETA, 4.0
• Labels: collction
• Assignee: Unassigned
• Reporter: Po Rui
• Created: 30/Oct/12 08:18
• Updated: 08/Oct/16 04:20
• Resolved: 08/Oct/16 04:20

Description

the collection create AIP may create a collection that user not expected when the solr-nodes number less than the request collection's replicas number.EX. the cluster have 5 avalaible solr-nodes. than user want create a collection with API param "numShards=2&numReplicas=2". this will lead to a collection contained 2 shards but one own 2 replicas and another own 1 replica. More serious, this will lead a collection loss one shard while the API param is "numShards=3&numReplicas=2". this will confuse the user. this incomplete collection will confuse the user. so we should discard the colletion create action while the numLivedNode < numShards * (numReplicas + 1)

Issue Links

• is blocked by: SOLR-4034 creating a collection with a existed collection name in the cluster act wrongly