Benno Evers created MESOS-9645:
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Summary: Add a way to access a subset of metrics
Key: MESOS-9645
URL: https://issues.apache.org/jira/browse/MESOS-9645
Project: Mesos
Issue Type: Improvement
Reporter: Benno Evers
Currently, the only way to access libprocess metrics is via the
`metrics/snapshot` endpoint, which returns the current values of all installed
metrics.
If the caller is only interested in a specific metric, or a subset of the
metrics, this is wasteful in two ways: First the process has to do extra work
to collect these metrics, and second the caller has to do extra work to filter
out the unneeded metrics.
Ideally libprocess could use the request path to implement filtering such that
e.g. a request to
{noformat}
wget http://mesos.master:5050/metrics/allocator/mesos/
{noformat}
would return all metrics whose name begins with "allocator/mesos/", would I'm
not sure that this is currently implementable.
Alternatively, a request parameter could be added to the same effect:
{noformat}
wget http://mesos.master:5050/metrics/snapshot?prefix=allocator/mesos/
{noformat}
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