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Mammoth Migration for the Host with Cloudera Manager Role Fails on Step 3, InstallHadoop, with "Unable to locate Cloudera Manager server keytab file. Please generate it and place it under /opt/oracle/BDAMammoth" (Doc ID 2860898.1)

Last updated on APRIL 17, 2023

Applies to:

Big Data Appliance Integrated Software - Version 4.13.0 and later
x86_64

Symptoms

NOTE: In the examples that follow, user details, cluster names, hostnames, directory paths, filenames, etc. represent a fictitious sample (and are used to provide an illustrative example only). Any similarity to actual persons, or entities, living or dead, is purely coincidental and not intended in any manner.

Performing a mammoth migration for the host with Cloudera Manager (CM) role, Node 3 by default, on a BDA cluster with AD Kerberos following:
Node 3 Migration and Recommission on Oracle Big Data Appliance V4.11 and Higher (Doc ID 2524859.1)
or
Node 3 Migration and Reprovision on Oracle Big Data Appliance V4.1 OL6 Hadoop Cluster to Manage a Hardware Failure (Doc ID 1984854.1)

fails in Step 3, InstallHadoop, when executing CopyCMKeyTab.sh on the node where the original CM host is being migrated to with errors like below:

ERROR: Unable to locate Cloudera manager server keytab file. Please generate it and place it under /opt/oracle/BDAMammoth to continue with the installation.

From the trace file: <HOSTNAME1>-<TIMESTAMP>.trc

GridSteps::DieTrap(‘Exiting...’) called at GridSteps.pm line 1792
GridSteps::MsgPrint(‘EE’, ‘Unable to locate Cloudera manager server keytab file. Please ...’) called at MammothSteps/InstallHadoop.pm line 97
MammothSteps::InstallHadoop::InstallHadoop() called at /opt/oracle/BDAMammoth/bdaconfig/GridInst.pl line 390

Note: In the BDA AD Kerberos cluster here, the KDC is the AD server.

Cause

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In this Document
Symptoms
Cause
Solution
References


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