Configuring FSImage Fetch for FSAnalytics in Kerberos and Non-Kerberos HDFS Web UI Environments

In ODP/CDP deployments where Kerberos authentication is enabled for the HDFS NameNode UI, the parameter hdfs.webhdfs.kerberos.enabled must be set to true in $AcceloHome/config/acceldata.conf.

• This configuration is required to ensure proper authentication for the fsimage fetch API invoked by Pulse, which retrieves the latest fsimage from the NameNode UI.
• If Kerberos authentication is not enabled for the HDFS Web UI, ensure that the parameter **hdfs.webhdfs.kerberos.enabled** is set to **false**.
• Run the following command to apply the changes.

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accelo reconfig cluster

Verification

After executing the above command, the configuration change can be verified in: $AcceloHome/work/<clusterName>/fsanalytics/kinit_fsimage.sh Check the value of the **IsKerberosEnabled** parameter in this script:

• **1** indicates that WebHDFS Kerberos authentication is enabled.
• **0** indicates that WebHDFS Kerberos authentication is disabled