Hello,
We had a node failure on a 3 node cluster and Kibana is refusing to start with the following error.
.kibana_task_manager index all shards failed
That node had the Kibana system index and looks like data got corrupted. I think the index wasn't replicated to other nodes.
When i bring back that node it doesn't have any data at all and existing data is not being replicated there from other two nodes.
Any help is appreciated.