jason and jq help

[#1]

I need jason jq help. I have the health status, but I need to grep the few field only using jq

{ "href" : "http://xxxx:8080/api/v1/clusters/?fields=Clusters/health_report", "items" : [ { "href" : "http://xxxxx:8080/api/v1/clusters/xxxxx", "Clusters" : { "cluster_name" : "xxxx", "health_report" : { "Host/stale_config" : 0, "Host/maintenance_state" : 13, "Host/host_state/HEALTHY" : 13, "Host/host_state/UNHEALTHY" : 0, "Host/host_state/HEARTBEAT_LOST" : 0, "Host/host_state/INIT" : 0, "Host/host_status/HEALTHY" : 12, "Host/host_status/UNHEALTHY" : 1, "Host/host_status/UNKNOWN" : 0, "Host/host_status/ALERT" : 0 }, "version" : "HDP-2.6" } } ]

I only want to grep Host/host_status/UNHEALTHY and it's value. How can I do using jq command

[#2]

Is it possible that something in your original redirection to the file was removing a character or two? As pasted into your original question, it's invalid JSON, which would also give you an error (since jq would be trying to parse a non-parseable string). Just to be thorough, could you attach the original file?

[#3]

one of them shows as unhealthy, how do I find out which component or service is unhealthy in command line.

"Host/stale_config" : 0, "Host/maintenance_state" : 13, "Host/host_state/HEALTHY" : 13, "Host/host_state/UNHEALTHY" : 0, "Host/host_state/HEARTBEAT_LOST" : 0, "Host/host_state/INIT" : 0, "Host/host_status/HEALTHY" : 12, "Host/host_status/UNHEALTHY" : 1, "Host/host_status/UNKNOWN" : 0, "Host/host_status/ALERT" : 0