Monitoring Multiple Instances of MapR-FS

The various ways to monitor the health and performance of your cluster are described here. This section describes the commands you can run to perform some additional monitoring.

Determining the Number of Running Instances

Run the following command to determine the number of instances actually running:
/opt/mapr/server/mrconfig info instances

Your output will look similar to the following. This output shows that 2 FileServer instances are running on ports 5660 and 5661.

[root@atsqa8c171 ~]# /opt/mapr/server/mrconfig info instances
5660 5661

Determining the Number of MFS Threads

You can run the mrconfig info threads command to view MFS threads from all the instances. The output is tagged to identify the instance.