can anyone suggest query or opensource tools to check health of infrastructures like  1. to check server is ON or NOT  2. Hard disk usage  3. RAM\MEMORY USAGE CPU USAGE .   ... View more

I want to connect opensearch with nifi but it is showing error while running processor of sending data. it shows failure of requests . i have also tried different version of nifi with opensearch but still same error . How can i solve it? screenshot of error   ... View more