Hi,
Wonder if you might be able to provide a bit of assistance.
I was completing 4.3 on Elastic Engineer 2, near the bottom it asks to change cluster.routing.allocation to force shard awareness based on which rack a node belongs to. However, it didn't go as expected and it gave me a 503 status error and none of the nodes could rejoin the cluster. I tried to resolve this via curl but it didn't work for me. Would you know that if this does happen that the cluster settings such as this can be altered via the command line with curl? I was inserting curl -PUT 'http://service1:9200/_cluster/settings - d '{ persistent:{ cluster:{ routing:{ } } }}' to try reset my settings.
As I couldn't find a way to resolve I reloaded the lab with the lab script for lab 4. When I have done this I was having an issue rejoining the cluster I think the nodes may need data folder cleared out and restarted. One of the nodes joins with an incorrect cluster uid.
Kind Regards,
Chris