Default Parameters for MongoBgFlushingTest

This test tracks flushes to disk and reports the average time taken by the monitored server to flush writes in memory to disk. In the process, the test proactively alerts administrators to slowness in disk writes. The test also reports the duration of the last disk write, thus enabling administrators to figure out when the slowness could have occurred - did it creep in recently? or has it been persistent?

Note:

This test reports metrics only for those MongoDB instances that use the MMAPv1 storage engine.

This page depicts the default parameters that need to be configured for MongoBgFlushingTest.

• The TEST PERIOD list box helps the user to decide how often this test needs to be executed.

• The test connects to a specific Mongo database to run API commands and pull metrics of interest. Specify the name of this database in the DATABASE NAME text box. The default value of this parameter is admin.

• Once the necessary values have been provided, clicking on the UPDATE button will register the changes made.

When changing default configurations of tests, the values with "$" indicate variables that will be replaced by the eG system according to the specific server being managed - for instance, $hostName is the host/nickname of the target host, $port is the port number of the server being monitored. E.g., for a server xyz:80, $hostName will be changed automatically by the eG manager to "xyz" and $port will be changed to "80" when configuring a test.