Memory Usage Alarm
NODE_ALARM_MEMORY_SWAPPING
The HostStats service raises this alarm for swap space when the delta of swap in memory and the delta of swap out memory exceeds the threshold set over a specific time period.
To clear the alarm, you can increase the physical memory or reduce the load running on
the node. You can run the service list command to see the memory
allocated to each service on the node. See service list for more
information.
The memory swapping alarm is controlled by the following
properties in /opt/mapr/conf/hoststats.conf:
alarm.swapping.threshold
alarm.swapping.counter
The memory threshold for swap in and swap out is defined by
the alarm.swapping.threshold property, which is
set to 100MB by default. The duration over which HostStats checks
the delta of the memory is defined by the
alarm.swapping.counter, which is set to 100 seconds by
default.