Viewing subcluster layout in MC
The MC Database Manage page displays two tabs, the Subclusters tab and the Database tab.
This topic describes the monitoring functions of the Subclusters tab. To monitor your subclusters, on the Subclusters tab you can view, sort, and search for subclusters and view their layout and statistics.
For information about using the Subclusters tab to make changes — adding, rebalancing, stopping and starting, scaling up or down, or terminating subclusters — see Subclusters in MC and its subtopics.
The Subclusters tab includes the following statistics in table form for the nodes in each subcluster:
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Node name
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Private IP address
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Status (UP or DOWN)
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CPU Usage %
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Memory Usage %
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Disk Usage %
Searching for nodes
To find a particular node, enter its node name or IP address in the "node name or IP" search field at the top right of the Subclusters tab. Searching for nodes is especially helpful if your cluster is very large. To find a specific node, enter its complete node name or IP address. You can enter a partial node name or IP address to find all nodes whose name or IP address contains that string. For example, if you enter "240" in the search field, MC would find both of the following nodes:
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Node name: MyNode24018
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Node IP address: 1.160.10.240
Note
Wildcard characters are not supported in the search field.Starting, stopping, or removing nodes
The right column provides icons for executing node actions. You can start, stop, or remove a node in the subcluster. Removing a node also removes it from the database. Only the Start, Stop, and Remove actions are available on this page. For details, see Starting, stopping, and restarting nodes in MC
Note
If you change the layout of your subcluster, for example by removing nodes, you must rebalance shards. See REBALANCE_SHARDS.Sorting nodes within a subcluster
You can sort the nodes within each subcluster by the values in any column, by clicking on the column heading.
Collapsing or expanding a subcluster, or the entire table
To collapse a subcluster section to one summary row, click the minus icon or the subcluster heading. To collapse the entire table to summary rows, click the minus icon or "Collapse All".
To expand a collapsed subcluster section, click the plus icon or the subcluster heading. To expand the entire table, click the plus icon or Expand All.