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Measures reported by CassNodeStatTest
This test auto-disovers the nodes of the target Cassandra Database cluster and for each node, reports the current state and the load handled. Using this test , administrators can figure out the nodes that are down and the nodes that are handling the maximum amount of load.
Ouputs of the test: One set of results for the target Cassandra Database node being monitored.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Status |
Indicates the current status of this node. |
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The values that this measure can report and their corresponding numeric values have been listed in the table below:
| Numeric Value |
Measure Value |
| 0 |
Down |
| 1 |
Up |
| 10 |
Off cooling |
| 11 |
Off connector rating |
| 12 |
On but inline power failure |
Note:
By default, this measure reports the above-mentioned Measure Values listed in the table above to indicate the current state of this node. However, in the graph of this measure, the status of the node will be represented using the numeric equivalents only.
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| Load |
Indicates the amount of data handled by this node. In other words, this indicates amount of file system data under the Cassandra data directory after excluding all content in the snapshots sub directories of this node. |
MB |
By comparing the value of this measure across nodes, administrators can figure out the node that is handling the maximum amount of load. |
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