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ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/before-INSTALL/scripts/shared_initialization.py
<https://reviews.apache.org/r/22730/#comment81987>

    Moving the code from before-install to before-start shared_initialization 
might be an issue for client-only nodes in kerberized cluster. Such nodes will 
not get the jce policy files


- Jaimin Jetly


On June 24, 2014, 4:34 p.m., Andrew Onischuk wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/22730/
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> 
> (Updated June 24, 2014, 4:34 p.m.)
> 
> 
> Review request for Ambari and Jaimin Jetly.
> 
> 
> Bugs: AMBARI-6185
>     https://issues.apache.org/jira/browse/AMBARI-6185
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> Looks like code to distribute JCE policy is in before-install hooks
> [code](https://git-wip-
> us.apache.org/repos/asf/ambari/repo?p=ambari.git;a=blob;f=ambari-
> server/src/main/resources/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/shared
> _initialization.py;h=a1196a8d2c997be37d65760aa3cd5de13e2cc747;hb=HEAD#l210).
> So if no INSTALL task has executed on a host in secure cluster (for agent
> hadoop.security.authentication=kerberos is security enabled) then JCE policy
> will not be distributed and unzipped on that host
> 
> Cluster can easily fall in a situation where a host has no client component.
> Following are example scenarios
> 
>   1. While installing partial set of services with default selection for 
> serviceComponent allocation to hosts in installer wizard
>   2. Adding a new host with slave components but no client components.
> 
> This leads to failure of starting serviceComponent that has no client
> installed with them on a host in secure cluster.
> 
> I discovered this bug while securing a cluster with just HDFS+ZK+STORM
> installed. Security wizard start all services failed with ZK quorum check
> failure. Once I installed HDFS_CLIENT on all hosts and restarted all services
> then all services came up in secure cluster.
> 
> 
> Diffs
> -----
> 
>   
> ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/before-INSTALL/scripts/shared_initialization.py
>  3a0bf93 
>   
> ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/before-START/scripts/hook.py
>  8ad8c70 
>   
> ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/before-START/scripts/params.py
>  6f22e79 
>   
> ambari-server/src/main/resources/stacks/HDP/1.3.2/hooks/before-START/scripts/shared_initialization.py
>  07858ad 
>   
> ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-INSTALL/scripts/shared_initialization.py
>  a1196a8 
>   
> ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/hook.py
>  703889e 
>   
> ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/params.py
>  fbb358f 
>   
> ambari-server/src/main/resources/stacks/HDP/2.0.6/hooks/before-START/scripts/shared_initialization.py
>  4a9bc42 
>   
> ambari-server/src/test/python/stacks/1.3.2/hooks/before-INSTALL/test_before_install.py
>  58084d0 
>   
> ambari-server/src/test/python/stacks/1.3.2/hooks/before-START/test_before_start.py
>  fc906b1 
>   
> ambari-server/src/test/python/stacks/2.0.6/hooks/before-INSTALL/test_before_install.py
>  92eed49 
>   
> ambari-server/src/test/python/stacks/2.0.6/hooks/before-START/test_before_start.py
>  9274fd5 
> 
> Diff: https://reviews.apache.org/r/22730/diff/
> 
> 
> Testing
> -------
> 
> mvn clean test
> 
> 
> Thanks,
> 
> Andrew Onischuk
> 
>

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