[SOLR-12489] Restore collection does not respect user specified replicationFactor

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 7.5, 8.0
• Labels: Backup/Restore
• Assignee: Varun Thacker
• Reporter: Varun Thacker
• Created: 14/Jun/18 13:04
• Updated: 21/Nov/19 00:41
• Resolved: 19/Jun/18 14:48

Description

When restoring a collection we can pass in the replicationFactor 

However while restoring the collection we don't make use of this param and end up using whatever is present  as the nrtReplicas key in the state.json

 

int numNrtReplicas = getInt(message, NRT_REPLICAS, backupCollectionState.getNumNrtReplicas(), 0);
if (numNrtReplicas == 0) {
  numNrtReplicas = getInt(message, REPLICATION_FACTOR, backupCollectionState.getReplicationFactor(), 0);
}

The tests didn't catch this as the create collection call from SolrJ sets nrtReplicas = replicationFactor and then we never restore with a different replicationFactor

Issue Links

• relates to: SOLR-11823 Incorrect number of replica calculation when using Restore Collection API