Invoking the metrics API (e.g., /cluster/metrics/node/os-cpu-idle?start=1397746020&function=average), I get all null values:
{
"192.168.4.101": {
"AVERAGE": [
[
1397746020,
null
],
[
1397746080,
null
],
. . .
[
1397746440,
null
]
]
}
}
The same goes for all os-cpu-* metrics. Other metrics, like memory, disk, network, etc., return valid values.
There are no cpu/proc-related errors in the agent log. Appreciate any insights.