Hari Sekhon created AMBARI-10494:
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Summary: Ambari 2.0 breaks Stack deployment of HDP 2.2.4.0 due to
yum repo assumptions trying to install krb5-server
Key: AMBARI-10494
URL: https://issues.apache.org/jira/browse/AMBARI-10494
Project: Ambari
Issue Type: Bug
Components: ambari-agent, ambari-server, stacks
Affects Versions: 2.0.0
Environment: HDP 2.2.0.0 => HDP 2.2.4.0
Reporter: Hari Sekhon
When trying to upgrade from HDP 2.2.0 to 2.2.4 Ambari tries to install
krb5-server on all nodes (why all nodes??) and but issues a yum command on
RHEL6 that excludes nearly all repositories.
{code}Fail: Execution of '/usr/bin/yum -d 0 -e 0 -y install '--disablerepo=*'
--enablerepo=base,HDP-UTILS-2.2.4.0,HDP-2.2.4.0 krb5-server' returned 1. Error:
Nothing to do{code}
The reason this fails is because there is no "base" repo as packages are
managed through Redhat Satellite server with internal repo names. This is a
common deployment style in corporations that have strict border filtering so
servers are not pulling packages directly from the internet (this is a bank).
The install of the new stack version actually did succeed on nodes where
krb5-server happened to already be installed, so a workaround is to pre-install
krb5-server on all nodes to allow it to simply skip this package.
I understand why the repo exclusions are done to try to force the right Hadoop
rpms versions to be installed but it might be better to not exclude any repos
for this krb5-server package, although I'm not sure why this package needs to
be installed on all nodes anyway.
Also, if using parcels as I recommended in AMBARI-8815, repo exclusions
wouldn't be needed at all and it would avoid this and other rpm/repo related
problems, which is why Cloudera engineers switched to parcel deployments.
Hari Sekhon
(ex-Cloudera)
http://www.linkedin.com/in/harisekhon
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