how to identify alert from kafka service in ambari by REST API

Question

hi all   we want to identify kafka alert from ambari by rest api   Example when we get alert      what is the AMBARI REST API in order to verify alert on kafka broker01 or kafka broker02 , etc

jsensharma · Accepted Answer

@mike_bronson7

Yes, you are right if the alert state is "OK" means the service is running well usually. If it is WARNING/CRITICAL then we need to look at the alert text and alert host to find out why and in which host the alert is in that state.

Basically the Kafka "host" where the alert was triggered, The "state" of the alert like CRITICAL,OK,WARNING and then Alert "text" are usually the important parts of an alert which gives us a good idea on what is happening.

So you can capture those selected output using:

# curl -u admin:admin -H "X-Requested-By: ambari" -X GET "http://$AMBARI_HOST:8080/api/v1/clusters/NewCluster/alerts?fields=Alert/host_name,Alert/host_name,Alert/state,Alert/text&Alert/service_name=KAFKA"

.

Example Output:

# curl -u admin:admin -H "X-Requested-By: ambari" -X GET "<a href="http://newhwx1.example.com:8080/api/v1/clusters/$CLUSTER_NAME/alerts?fields=Alert/host_name,Alert/host_name,Alert/state,Alert/text&Alert/service_name=KAFKA" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/$CLUSTER_NAME/alerts?fields=Alert/host_name,Alert/host_name,Alert/state,Alert/text&Alert/service_name=KAFKA</a>" 
{
  "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=Alert/host_name,Alert/host_name,Alert/state,Alert/text&Alert/service_name=KAFKA" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=Alert/host_name,Alert/host_name,Alert/state,Alert/text&Alert/service_name=KAFKA</a>",
  "items" : [
    {
      "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/704" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/704</a>",
      "Alert" : {
        "cluster_name" : "NewCluster",
        "definition_id" : 401,
        "definition_name" : "kafka_broker_process",
        "host_name" : "newhwx3.example.com",
        "id" : 704,
        "service_name" : "KAFKA",
        "state" : "OK",
        "text" : "TCP OK - 0.000s response on port 6667"
      }
    },
    {
      "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/1201" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/1201</a>",
      "Alert" : {
        "cluster_name" : "NewCluster",
        "definition_id" : 401,
        "definition_name" : "kafka_broker_process",
        "host_name" : "newhwx5.example.com",
        "id" : 1201,
        "service_name" : "KAFKA",
        "state" : "CRITICAL",
        "text" : "Connection failed: [Errno 111] Connection refused to newhwx5.example.com:6667"
      }
    }
  ]
}

.

jsensharma · Answer

@mike_bronson7

You can try something like this:

# curl -u admin:admin -H "X-Requested-By: ambari" -X GET "http://$AMBARI_HOST:8080/api/v1/clusters/$CLUSTER_NAME/alerts?fields=*&Alert/service_name=KAFKA"

.

Example Output:

# curl -u admin:admin -H "X-Requested-By: ambari" -X GET "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=*&Alert/service_name=KAFKA" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=*&Alert/service_name=KAFKA</a>"
{
  "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=*&Alert/service_name=KAFKA" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts?fields=*&Alert/service_name=KAFKA</a>",
  "items" : [
    {
      "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/704" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/704</a>",
      "Alert" : {
        "cluster_name" : "NewCluster",
        "component_name" : "KAFKA_BROKER",
        "definition_id" : 401,
        "definition_name" : "kafka_broker_process",
        "firmness" : "HARD",
        "host_name" : "newhwx3.example.com",
        "id" : 704,
        "instance" : null,
        "label" : "Kafka Broker Process",
        "latest_timestamp" : 1575403190535,
        "maintenance_state" : "OFF",
        "occurrences" : 14,
        "original_timestamp" : 1575402410385,
        "repeat_tolerance" : 1,
        "repeat_tolerance_remaining" : 0,
        "scope" : "HOST",
        "service_name" : "KAFKA",
        "state" : "OK",
        "text" : "TCP OK - 0.000s response on port 6667"
      }
    },
    {
      "href" : "<a href="http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/1201" target="_blank">http://newhwx1.example.com:8080/api/v1/clusters/NewCluster/alerts/1201</a>",
      "Alert" : {
        "cluster_name" : "NewCluster",
        "component_name" : "KAFKA_BROKER",
        "definition_id" : 401,
        "definition_name" : "kafka_broker_process",
        "firmness" : "HARD",
        "host_name" : "newhwx5.example.com",
        "id" : 1201,
        "instance" : null,
        "label" : "Kafka Broker Process",
        "latest_timestamp" : 1575403167289,
        "maintenance_state" : "OFF",
        "occurrences" : 12,
        "original_timestamp" : 1575402507311,
        "repeat_tolerance" : 1,
        "repeat_tolerance_remaining" : 0,
        "scope" : "HOST",
        "service_name" : "KAFKA",
        "state" : "CRITICAL",
        "text" : "Connection failed: [Errno 111] Connection refused to newhwx5.example.com:6667"
      }
    }
  ]
}

.

Sign up

Please use your Cloudera account.

Login to the community

Please use your Cloudera account.