[SOLR-5609] Don't let cores create slices/named replicas

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 4.8, 6.0
• Component/s: SolrCloud
• Assignee: Noble Paul
• Reporter: Noble Paul
• Created: 06/Jan/14 18:23
• Updated: 09/May/16 18:51
• Resolved: 20/May/14 07:31

Description

In SolrCloud, it is possible for a core to come up in any node , and register itself with an arbitrary slice/coreNodeName. This is a legacy requirement and we would like to make it only possible for Overseer to initiate creation of slice/replicas

We plan to introduce cluster level properties at the top level

/cluster-props.json

{
"noSliceOrReplicaByCores":true"
}

If this property is set to true, cores won't be able to send STATE commands with unknown slice/coreNodeName . Those commands will fail at Overseer. This is useful for SOLR-5310 / SOLR-5311 where a core/replica is deleted by a command and it comes up later and tries to create a replica/slice

Issue Links

• depends upon: SOLR-5610 Support cluster-wide properties with an API called CLUSTERPROP
• depends upon: SOLR-5130 Implement addReplica Collections API
• is a clone of: SOLR-5096 Introduce a new mode to force collection api usage
• is related to: SOLR-5580 SOLR-5311 was done without full understanding of the system and must be reverted.
• relates to: SOLR-5096 Introduce a new mode to force collection api usage
• supercedes: SOLR-5311 Avoid registering replicas which are removed