Manage Node Operations
Scenario
In the case of a node failure, you may need to stop all cluster services on YI-MapReduce and perform maintenance checks on the node. Once the issue is resolved, you can restart all cluster services on the node to restore service functionality.
Procedure
1. Log in to the YI-MapReduce console, click the name of the active cluster on My Cluster, and go to the cluster details page.
2. On the cluster details page, click YI-MapReduce Manager and click Go to YI-MapReduce Manager.
3. On the Cluster Service page of the Manager, select More Operations, and then click on Stop All Cluster Services to perform the corresponding operation.
Remote Connection
Scenario
This section primarily introduces how to log in to the ECS using the remote login feature (i.e., VNC method) provided by the console. This allows users to check the operational status or any issues with the operating system of the instance.
Before You Begin
The ECS instance has a pre-set login password.
Procedure
1. Log in to the YI-MapReduce console, click the name of the active cluster, and go to the cluster details page.
2. Go to the Node Management page, click the drop-down button in the Node Group Name column to expand the corresponding node information, click Remote Connection in the Operations column, and a shell command window will appear on the new page.
3. You can execute remote login through the command line as prompted.
Bind/Unbind EIP
Background
By default, all nodes in the created YI-MapReduce cluster are assigned an internal IP. Users are required to manually generate an external IP.
Steps to Bind EIP
1. Log in to the YI-MapReduce console. On the My Cluster page, click on the specific cluster name to go to the cluster details page.
2. On the Node Management page, click the drop-down button in the Node Group Name column to expand the corresponding node information. Click More in the Operations column.
3. Binding: Click on Bind EIP. In the Bind EIP pop-up, if there are no available EIP under your account, you need to click the + Create an EIP button to be redirected to a new page for creation. If there are available EIPs under your account, you can select the IP from the EIP dropdown box, and click OK to bind. Please note: The bound EIP will not be automatically released with the node. You need to go to the EIP console for further actions.
Steps to Unbind EIP
1. Log in to the YI-MapReduce console. On the My Cluster page, click on the specific cluster name to go to the cluster details page.
2. On the Node Management page, click the drop-down button in the Node Group Name column to expand the corresponding node information. Click More in the Operations column.
3. Unbinding: Click on Unbind EIP. In the Unbind EIP pop-up box, click OK to unbind. Please note: The unbound EIP will not be automatically released with the unbinding operation. You need to go to the Elastic IP Console for further actions.
