Problem

Triggering a reindex using the endpoint:

POST /confluence/rest/prototype/latest/index/reindex?option=USER_ONLY

causes the indexing job to remain indefinitely stuck in the PROPAGATING state.

Environment

• Found in:
  • Confluence Data Center 9.2.13
• Latest bug-fix LTS version:
  • Confluence Data Center 9.2.20 (confirmed affected)

Steps to Reproduce

1. In a Confluence Data Center cluster (at least 2 nodes), execute:

   curl -k -i --request POST \
   --url 'http://<BASEURL>/rest/prototype/latest/index/reindex?option=USER_ONLY' \
   --header 'Authorization: Bearer <token>' \
   --header 'Accept: application/json'
   ### OR
   curl -k -i --request POST \
   --url "https://<BASEURL>/rest/prototype/latest/index/reindex?option=USER_ONLY" \
   --user admin:password \
   --header "Accept: application/json"
   

1. Monitor indexing state via:

   GET /rest/rebuildindex/latest/job
   
   curl -k -s --request GET \
   --url "https://<BASEURL>/rest/rebuildindex/latest/job" \
   --user admin:password \
   --header "Accept: application/json" \
   | jq
   {
     "id": "719d846e-c5db-4eef-b03f-b89736d0689c",
     "startTime": 1778127790,
     "duration": 678,
     "stage": "PROPAGATING",
     "acknowledged": false,
     "progress": 50,
     "nodes": [
       {
         "nodeId": "37361bbf",
         "state": "WAITING",
         "progress": 0
       },
       {
         "nodeId": "37361bde",
         "state": "REBUILD_COMPLETE",
         "progress": 0
       }
     ],
     "createdBy": "admin",
     "type": "SITE"
   }
   

Expected Results

The USER_ONLY reindex should either:

• complete successfully, or
• fail and transition into a terminal state

The indexing state should not remain indefinitely stuck in PROPAGATING.

Actual Results

• stage remains PROPAGATING

• one node becomes REBUILD_COMPLETE
• remaining nodes remain "stuck" on the 50%
  

Workaround

• Restart Confluence cluster if indexing becomes permanently stuck
• Perform reindex only from:

• • Confluence Administration → Content Indexing UI

Notes