Host Management Page Overview
Once in the YI-MapReduce Manager, click Host on the menu to go to the host page. As shown in the figure:
• The query function at the top of the host list allows querying by host IP/host name.
• The host list is presented in a data list format.
• The operation area located at the top left corner of the host list allows operations such as setting maintenance, canceling maintenance, and exporting data.
• Click on the host IP or the host name to go to the host details page.
Host Details Page Overview
Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
Click on the host IP or the host name to go to the host details page. As shown in the figure:
This page displays the following information in sequence: host status, instance list, and the alarm history for the host.
Host Maintenance and Cancellation
Set Maintenance
Scenario
Users may need to set a specific host or a batch of hosts into maintenance mode.
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
5. Check the box in front of the host that requires operation.
6. Click on Operate on Selected > Set Maintenance. A set maintenance pop-up will appear. As shown in the figure:
7. Enter notes and click OK.
Cautions
1. After setting the host to maintenance, the health status of this host will be displayed as in maintenance. As shown in the figure:
2. After setting the host to maintenance, the alarm messages of this host will be blocked.
Cancel Maintenance
Scenario
Users may need to cancel the maintenance status for a specific host or a batch of hosts.
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
5. Check the box in front of the host that requires operation.
6. Click Operate on Selected > Cancel Maintenance. The cancel maintenance operation pop-up will appear.
7. Enter notes and click OK.
View Host Status
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
5. Click on the IP or host name of the specific host to go to the host details page, which defaults to the host status page. As shown in the figure:
View Host Instance List
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
5. Click on the IP or the name of the specific host to go to the host details page.
6. Click the Instance List tab to view the instance services installed on this host. As shown in the figure:
View Host Alarm History
Procedure
1. Log in to the YI-MapReduce management console.
2. Click on My Cluster and choose a running cluster to enter the cluster information page.
3. Click the YI-MapReduce Manager tab, and then select Go to YI-MapReduce Manager.
4. Once in the YI-MapReduce Manager, click Host on the menu to go to the host list page.
5. Click on the IP or the name of the specific host to go to the host details page.
6. Click the Alarm History tab to view all alarm messages for this host. As shown in the figure:
