updated troubleshooting

docs/admin/Troubleshooting/Troubleshooting.md

@@ -15,7 +15,10 @@ Use kubectl and open a bash terminal on the cmon-master container.
 ### S9S CLI commands 
 
 :::danger
-Never use the S9S CLI nor the CCUIv2 to delete resources (nodes or datastores). This may lead to stray data.
+Never use the S9S CLI nor the CCUIv2 to add or remove resources (nodes or datastores). This may lead to stray data.
+Do not use the following commands:
+- s9s cluster --[drop|remove-node|add-node|upgrade-cluster|reinstall-node|demote-node|reconfigure-node]
+- s9s node --unregister
 ::::
 The 's9s job' commands can be used to debug why a datastore failed to create. Example:
 
@@ -109,6 +112,12 @@ s9s account --cluster-id=NNN --create --account='ccxadmin:PASSWORD@%' --privileg
 s9s account --cluster-id=NNN --create --account='ccxadmin:PASSWORD@%' --privileges='NOSUPERUSER, CREATEROLE, LOGIN, CREATEDB'
 ```
 
+### Rebuildint a failed replica
+In some cases it is wanted to rebuild a replica.
+```bash
+s9s replication --cluster-id=NNN --stage --master="PUBLIC_ADDRESSS_OF_MASTER" --slave="PUBLIC_ADDRESSS_OF_REPLICA_TO_BE_REBUILT
+```
+
 ## Certificates
 
 ## Services are bouncing