Support Questions
Find answers, ask questions, and share your expertise
Announcements
Alert: Welcome to the Unified Cloudera Community. Former HCC members be sure to read and learn how to activate your account here.

how to check by API that all hosts are are heart-beating

Solved Go to solution

how to check by API that all hosts are are heart-beating

what is the API or other CLI to check that all hosts in the cluster are without heart-beat loss ?

Michael-Bronson
1 ACCEPTED SOLUTION

Accepted Solutions

Re: how to check by API that all hosts are are heart-beating

Super Mentor

@Michael Bronson

Something like this you can try:

# curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 host_state

.

OR

# curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 HEARTBEAT_LOST

OUTPUT
-------
        "host_name" : "hdfcluster4.example.com",
        "host_state" : "HEARTBEAT_LOST"

.

For healthy nodes we can grep like:

#   curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 HEALTHY

OUTPUT
-------
        "host_name" : "hdfcluster1.example.com",
        "host_state" : "HEALTHY"
--
        "host_name" : "hdfcluster2.example.com",
        "host_state" : "HEALTHY"
--
        "host_name" : "hdfcluster3.example.com",
        "host_state" : "HEALTHY"

.

1 REPLY 1

Re: how to check by API that all hosts are are heart-beating

Super Mentor

@Michael Bronson

Something like this you can try:

# curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 host_state

.

OR

# curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 HEARTBEAT_LOST

OUTPUT
-------
        "host_name" : "hdfcluster4.example.com",
        "host_state" : "HEARTBEAT_LOST"

.

For healthy nodes we can grep like:

#   curl -u admin:admin  -H 'X-Requested-By: ambari' -X GET "http://hdfcluster1.example.com:8080/api/v1/clusters/TestCluster?fields=hosts/Hosts/host_name,hosts/Hosts/host_state" | grep -B1 HEALTHY

OUTPUT
-------
        "host_name" : "hdfcluster1.example.com",
        "host_state" : "HEALTHY"
--
        "host_name" : "hdfcluster2.example.com",
        "host_state" : "HEALTHY"
--
        "host_name" : "hdfcluster3.example.com",
        "host_state" : "HEALTHY"

.

Don't have an account?
Coming from Hortonworks? Activate your account here