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Upgrading Oracle Big Data Appliance Cluster to V3.0.* with Mammoth (Software Deployment Bundle) Release V3.0.* Frequently Asked Questions (FAQ) (Doc ID 1667038.1)

Last updated on OCTOBER 24, 2019

Applies to:

Big Data Appliance Integrated Software - Version 3.0 and later
Linux x86-64


This document provides answers to frequently asked questions on how to upgrade an Oracle Big Data Appliance cluster to Oracle Big Data Appliance 3.0.* using Mammoth (Software Deployment  Bundle). 


Questions and Answers

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In this Document
Questions and Answers
 When preforming an upgrade to Oracle Big Data Appliance (BDA) V3.0.* is it ok to be in Maintenance Mode to avoid Cloudera Manager upgrade-related alerts?
 If the BDA has been changed from its original layout will that be a problem during upgrade?
 Does the cluster need to be in "Good Health" before upgrading to Oracle Big Data Appliance (BDA) V3.0.*?
 What Hadoop (CDH) version is on Oracle Big Data Appliance (BDA) V3.0.*?
 What is the version of NoSQL on BDA V3.0.*?
 Are there still two separate bundles for BDA 3.0.*, one for OEL 6 and one for OEL 5?
  Each Mammoth bundle consists of two zip files.  Can the second zipfile be used for reimaging as in the past?
 What are the major upgrades in this release?
 Can you summarize the new features for the rest of the BDA V3.0.* software stack?
 When upgrading from V2.2.1 or higher are there changes to the metadata location, structure type, etc.?
 When upgrading from 2.2.* - 2.5 to V3.0.*  are there changes to the Service Roles Layout?
 Where is the list of known CDH 5 issues?
 Is upgrading from BDA V2.0.1 with CDH 4.1.2/CM 4.1.2 to BDA V3.0.* with CDH 5 considered a major upgrade?
 Is planning to  upgrade to BDA V3.0.* from BDA V2.* versions recommended?
 Is MapReduceV1 still supported in BDA V3.0.* ?
 What about BDR?  Is BDR still available in BDA V3.0.* ?
 Is Spark configured on the BDA V3.0.* ?
 What about Impala, Search, and Navigator are they configured on the BDA V3.0.*?
 What about the EM Plug-in in BDA 3.0.* ?
 Are there any Mammoth deployment changes in this release?
 Does this mean that an upgrade from a pre-V2.5 can not go directly to BDA V3.0.*?
 Is it possible to upgrade from my BDA pre-V2.5 release to V2.5 and then immediately to 3.0.* to avoid multiple down times?
 If upgrading from pre-V2.5 to V2.5 and then V2.5 to  V3.0.* in one pass, does the critical metadata need to be backed up on V2.5 if it was backed up on the pre-V2.5 BDA?
 If minimizing downtime is critical what is the recommended approach for handling the upgrade from pre-2.5 to 3.0.*?
 Regarding backing up critical metadata in CDH 4.* prior to upgrade to CDH 5.0.*, are the table structures in MySQL compatible between CDH 4.x and CDH 5.0.*?
 If the table structures in the MySQL databases are not compatible between CDH 4.x and CDH 5.0.* what is the purpose of backing up the critical metadata??
 After upgrading the BDA, does the CDH client need to be upgraded to the same underlying version i.e. CDH 5.0.1 in the case of upgrading to BDA 3.0.1?
 What about upgrading a CDH client, will that also require a two step approach?
 If the Mammoth upgrade fails do I have to create a SR and upload the diagnostic bundle generated?
 After upgrading to BDA V3.0.* can Kerberos be added or remove as requirements change?
 After upgrading to BDA V3.0.* can Kerberos be manually added or remove as requirements change?
 Will I be able to use EM in BDA V3.0?
 Can I upgrade if non-BDA nodes have been added into the cluster?
 After upgrade to BDA 3.0 can EM be removed with mammoth-reconfig?
 After upgrade to BDA 3.0 can Big Data Connections or Oracle Audit Vault be added with mammoth-reconfig?
 Where is the documentation on the Version 3.0.* Version of the Oracle BDA Configuration Generation Utility?
 What is the direct link to the documentation "New features" section?
 Where is the Big Data Connector's documentation?
 What are the Oracle Big Data Connectors (BDC) version changes?
 What are the BDC new features?
 Are there any BCD deprecated features?
 When upgrading to BDA V3.0.* do any one-off patches need to be applied?
 After an upgrade from CDH 4 to CDH 5, off the BDA,  services show up with a "1".  Why is this?
 After an upgrade from CDH 4 to CDH 5, off the BDA, there is a MapReduce1 service which is not running i.e. it is in a stopped state.  What is that?  The YARN service is enabled.
 What is the MapReduce parameter:

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