API + how to verify data node disk by API

mike_bronson7 — Tue, 19 Dec 2017 21:07:04 GMT

on ambari GUI by clicking on HDFS --> config --> (we can see the data node folders that actually represented the worker disks)

how to use API in order to capture the number of disks from the blueprint ?

Re: API + how to verify data node disk by API

jsensharma — Fri, 22 Dec 2017 11:29:29 GMT

@Michael Bronson

Looks like you want to fetch the details of "dfs.datanode.data.dir" property. In that case you can try using the following call. (please revert back if you are talking about a slightly different property)

Syntax:

# curl -sH "X-Requested-By: ambari" -u admin:admin -X GET "http://$AMBARI_HOSTNAME:8080/api/v1/clusters/$CLUSTER_NAME/configurations/service_config_versions?service_name=HDFS&is_current=true" | grep "\"dfs.datanode.data.dir\""

Example:

# curl -sH "X-Requested-By: ambari" -u admin:admin -X GET "http://amb25101.example.com:8080/api/v1/clusters/plain_ambari/configurations/service_config_versions?service_name=HDFS&is_current=true" | grep "\"dfs.datanode.data.dir\""

Output:

  "dfs.datanode.data.dir" : "/hadoop/hdfs/data",

Please replace the "$AMBARI_HOSTNMAE" and "$CLUSTER_NAME" based on your environment.

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API + how to verify data node disk by API

Re: API + how to verify data node disk by API