You can use the Splunk Universal Forwarder to monitor the logs/dsstats.json file and forward the metrics to Splunk.
The Splunk Universal
Forwarder can be configured to monitor the logs/dsstats.json
file and forward the metrics to Splunk. Under the Splunk Forwarder application
files, update the etc/apps/search/local/inputs.conf file with
the following configuration for
dsstats.json:
[monitor:///path/to/PingDirectory/logs/dsstats.json]
sourcetype=log2metrics_json
index=pdmetrics
disabled=false
host=pd1
The index name can be customized, and the host value can be configured to label where the metrics are being forwarded from.