[SOLR-9707] DeleteByQuery forward requests to down replicas and set it in LiR

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 6.4
• Component/s: SolrCloud
• Labels: solrcloud
• Assignee: Varun Thacker
• Reporter: Jessica Cheng Mallet
• Created: 31/Oct/16 17:15
• Updated: 21/Nov/19 00:42
• Resolved: 13/Dec/16 01:24

Description

DeleteByQuery, unlike other requests, does not filter out the down replicas. Thus, the update is still forwarded to the down replica and fails, and the leader then sets the replica in LiR. In a cluster where there are lots of deleteByQuery requests, this can flood the /overseer/queue.