|
Measures reported by MySQLCluActTest
This test tracks the writes, inserts, deletes, and flushes happening on each node in the target MySQL Cluster database server. Using this test, administrators can easily isolate error-prone nodes and can proactively analyze the reason behind errors noticed on the node.
Outputs of the test :One set of results for each node in the target MySQL Cluster database server being monitored
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Delayed_writes_rate |
Indicates the rate at which rows are written with INSERT DELAYED in a table of this node. |
Writes/Second |
|
| Delayed_errors_rate |
Indicates the rate at errors occurred in the rows written with INSERT DELAYED in a table of this node. |
Errors/Second |
Ideally, the value of this measure should be 0.
Compare the value of this measure across nodes to figure out the node that is frequently error-prone. |
| Update_rate |
Indicates the rate at which requests to update a row in a table of this node were received. |
Updates/Second |
|
| Insert_rate |
Indicates the rate at which requests to insert a row in a table of this node were received. |
Inserts/Second |
|
| Deletion_rate |
Indicates the rate at which requests to delete a row in a table of this node were received. |
Deletions/Second |
|
| Flush_rate |
Indicates the rate at which FLUSH commands were executed in a table of this node. |
Flushes/Second |
|
|