master_usable_mem_alertΒΆ
Alert Name: master_usable_mem_alert
Alert Condition: The condition that triggers the alert is avg(last_5m):avg:mem_free{*} by {host} < 2000000000
.
Alert Explanation: This alert indicates that the average free memory in the coordinator node is less than 2 GB.
Resolution:
You can use one of the following methods to resolve:
- Method 1: Follow these steps:
- Use the AWS instance type with larger memory and set it as the coordinator node.
- Try moving a part of the workload to another cluster.
- Method 2: Follow these steps:
- Log into the coordinator node and check which process is using the maximum memory.
- Run the
top
command to check the percentage of memory being used by each running process. - Run the
ps
(process status) command to see more information about each process. - Based on which process is consuming the maximum memory, take appropriate steps as required.