Issue with Performance Analyzer in Centos

Hi Team,

I have installed performance-analyzer plugin in my elastic cluster but i am unable to get any metrics on running following command:
curl -XGET “localhost:9600/_opendistro/_performanceanalyzer/metrics?metrics=Latency,CPU_Utilization&agg=avg,max&dim=ShardID&nodes=all”
Response:
{“local”: {“timestamp”: 1584334145000, “data”: {“fields”:[{“name”:“ShardID”,“type”:“VARCHAR”},{“name”:“Latency”,“type”:“DOUBLE”},{“name”:“CPU_Utilization”,“type”:“DOUBLE”}],“records”:}}}

Also how can i get the default dashboards as i see the installable for PerfTop CLI only for MACOS and linux but my elastic cluster is in Centos.

Please assist.

Regards,
George