The following table describes the forbidden operations that should be noted during the routine operations in the cluster operation and maintenance stage.
Type | Operation Risk |
Changing the host name of a node is strictly prohibited | Changing the host name will cause the instances on that host and higher-level components to fail to provide normal service, and this cannot be fixed. |
Reinstallation of node OS is prohibited | This operation will cause the YI-MapReduce cluster to enter an abnormal state, affecting the use of the YI-MapReduce cluster. |
Use of private images is prohibited | This operation will cause the YI-MapReduce cluster to enter an abnormal state, affecting the use of the YI-MapReduce cluster. |